Pre-Design
CEPAS
Comprehensive Environmental Performance
Assessment Scheme for Buildings
Operation
Construction
Design
Construction Stage
2006 Edition
Comprehensive Environmental Performance
Assessment Scheme for Buildings
Construction Stage Assessment
Manual
Buildings Department
HKSAR Government
2006 Edition
COPYRIGHT
All rights are reserved. Applications to copy all or any part of this publication should be made to the
Buildings Department, Hong Kong Special Administrative Region (HKSAR) Government.
CONTENT
PREFACE
Page
CEPAS BUILDING DATA SHEET (CONSTRUCTION/DEMOLITION WORKS)
1
INDOOR ENVIRONMENTAL QUALITY (IE)
2
IE 1
IE 2
IE 3
Health & Hygiene
Indoor Air Quality
Lighting Environment
BUILDING AMENITIES (BA)
BA 1
BA 2
2
4
6
8
Safety
Management
8
9
RESOURCES USE (RE)
13
RE 1
RE 2
RE 3
RE 4
Energy Efficiency
Water Conservation
Timber Use
Material Use
LOADINGS (LD)
LD 1
LD 2
29
Pollution
Waste Management
SITE AMENITIES (SA)
SA 1 Landscape
SA 2 Security
NEIGHBOURHOOD AMENITIES (NA)
NA 1
Sustainability Economics
SITE IMPACTS (SI)
29
37
41
41
43
45
45
47
SI 1 Nature Conservation
SI 2 Heritage Conservation
SI 3 Buildability
NEIGHBOURHOOD IMPACTS (NI)
NI 1
NI 2
NI 3
13
15
17
21
Environmental Impact Assessment
Environmental Interactions
Impacts to Communities
47
49
51
53
53
54
56
APPENDIX 1. LIST OF ABBREVIATIONS
58
APPENDIX 2. SUMMARY OF CEPAS INDICATORS
60
APPENDIX 3A. CEPAS SCORING & WEIGHTING TABLES FOR CONSTRUCTION STAGE
(CONSTRUCTION WORKS)
66
APPENDIX 3B. CEPAS SCORING & WEIGHTING TABLES FOR CONSTRUCTION STAGE
(DEMOLITION WORKS)
70
PREFACE
Thank you for reading this CEPAS Construction Stage Assessment Manual.
This assessment manual for Construction Stage forms one part of the holistic life-cycle considered
comprehensive environmental performance assessment scheme (CEPAS) for buildings in Hong Kong. It
is for use during the building construction period. The target users for these publications are building
developers, owners, designers and building environmental specialists, i.e. all parties of the building
industry. The general public is also encouraged to use this scheme to understand more about building
environmental issues. It is expected that the building performance will be improved when all the users are
involved.
The entire CEPAS assessment scheme consists of the following publications:
•
CEPAS Application Guidelines
•
CEPAS Pre-design Stage Assessment Manual
•
CEPAS Design Stage Assessment Manual
•
CEPAS Construction Stage Assessment Manual
•
CEPAS Operation Stage Assessment Manual
The CEPAS manuals are prepared to provide a measure to evaluate sustainability performance for all
building types in Hong Kong. It is expected that this assessment scheme (2006 edition) will continue to
develop by sharing research supports and implementation experience with other local and international
assessment scheme. In order to maximise the flexibility of building planning, design, construction and
operation, there is flexibility in a number of the indicators within this assessment scheme. It is
recommended that this assessment scheme be used with reference to related technical guidelines from
local and international academia, professional organisations and the Government.
These CEPAS manuals were written by Ove Arup & Partners Hong Kong Limited and the associated subconsultants. The scheme has incorporated advices from local experts and the Steering Group members,
issues raised in the Discussion Forum and Expert Panels, as well as findings of Questionnaire Survey to
the stakeholders. The CEPAS assessment schemes, application guidelines and other codes, handbooks
and information published by the Buildings Department can be downloaded at http://www.bd.gov.hk/.
December 2006
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
CEPAS Building Data Sheet (Construction/Demolition Works)
BD Ref. No.
Building Name
Building
Address
Building Type
Building
Dimensions
RESIDENTIAL
NON – RESIDENTIAL
Usages
Usages
Total site area (m²)
Total site area (m²)
Total floor area (m²)
(AC-R)
Total floor area (m²)
(AC-NR)
Occupancy (Person)
Occupancy (Person)
Building Height (m)
Building Height (m)
No. of floor (include
No. of floor (include
basement)
basement)
Open space area (m²)
Open space area (m²)
Non – residential building (Office &
public place floor area, i.e. area
assigned for use by the tenant /
landlord / public, such as office,
common area, shop, within the total
enclosed space) (m²)
Non – residential building (Other than
office & public place floor area) (m²)
RESIDENTIAL
Building Type
STAGE
This submission
(Tick one)
Building stage
assessed
(Tick relevant)
NON – RESIDENTIAL
This submission
(Tick one)
Building stage
assessed
(Tick relevant)
Pre-design
Design
Construction
(Construction works)
Construction
(Demolition works)
Operation
Operation Stage
(Re-assessment)
Construction Stage Assessment Manual
Page 1
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
INDOOR ENVIRONMENTAL QUALITY (IE)
IE 1
Health & Hygiene
IE 1.1
Health & Hygiene
Intent
To enhance of health and hygiene in construction / demolition site
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
IE 1.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Space provision for cleansing facilities and storage of cleansing
equipment
0
1
2
C
D
Regular cleansing and good housekeeping in toilets and site office
0
1
3
C
D
Hygiene management plan for construction / demolition site
0
1
4
C
D
Designated person to inspect the site regularly to identify health
and hygienic problem areas
0
1
5
C
D
Provide training and information on health and hygiene issues to
construction site staff
0
1
6
C
D
Use of no / low emission cleaning products
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: This indicator is assigned to encourage contractors to provide designated
space within the construction / demolition site, including the site office, toilets and the
constructed portions within the site. The designated space / room(s) shall be in the
form of a room / protected space with sufficient storage area and washing basin, to
Construction Stage Assessment Manual
Page 2
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
allow washing of cleansing equipment and storage of cleansing commodities.
Item 2: Many construction / demolition sites are notorious for dirty toilets. This
indicator aims to encourage the contractors to provide a better and more hygienic
environment for site workers. The cleansing frequency of a site office will depend on
the actual situation but daily cleansing of toilet is required. A cleansing logbook shall
be provided to record the cleansing works.
Item 3: The indicator aims to encourage the contractors to formulate a hygiene
management plan for the construction / demolition site. The management strategies
can be in form of educational basis, instructions or guidelines for site staff and both
long-term and short-term workers. In addition, the management plan shall include
the identification of hygienic problems and their possible locations, methods to
maintain the hygiene performance and an emergency action plan.
Item 4: This indicator is assigned to encourage the contractors to designate a
member of site staff to inspect the construction / demolition site regularly, and to
identify health and hygiene problem areas. A minimum inspection frequency of once
a week is expected, for instance, stagnant water offers a breeding ground for
mosquitoes, which may bite site workers and cause transmission of diseases. This
indicator aims to eliminate health risks, such as mosquito growth within the
construction / demolition site. A designated person is required to inform the project
site staff for the requirement of health risk remedial works, such as stagnant water
removal.
Item 5: This indicator is assigned to maintain and improve health and hygiene
knowledge and technique to site staff through education and training that provided by
the contractors. Good health and hygienic environment is best achieved by staff good
habits and practice.
Item 6: Large quantity of cleaning products is consumed during construction and
demolition works. Some of the cleaning products are toxic and non-biodegradable,
which will cause adverse impact to the environment. This indicator is assigned to
encourage the use of environmentally-friendly cleaning materials and products.
Submittal
The following information shall be provided to demonstrate the compliance of the
Strategy Indicators:
•
•
•
•
•
Hygiene management plan.
Management plan implementation records.
Layout drawing and relevant evidence, such as photos.
Training records / materials on environmental health.
Documentation on using environmentally friendly cleaning products.
Construction Stage Assessment Manual
Page 3
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
IE 2
Indoor Air Quality
IE 2.1
Indoor Air Quality Strategies
Intent
To provide and implement IAQ strategies for the construction / demolition site
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
IE 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Design with sufficient quantity of fresh air supply for the site office
and show room on site
0
1
2
C
-
Design of commercial kitchen ventilation system within construction
site with effective oily fume and odour removal in canteens and
food business
0
1
3
C
-
Implement IAQ management strategies for occupied buildings
under construction
0
1
4
C
-
Use of no/low emitting building and furnishing materials
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: This indicator is assigned to encourage the provision of good quality fresh air
to the construction / demolition site office and show room / sale office. The minimum
fresh air rate for the office area as described in the ASHRAE Standard 62.1-2004:
Ventilation for Acceptable Indoor Air Quality, shall be referred as the minimum
compliance requirement for this indicator.
Item 2: This indicator is assigned to encourage appropriate design of the commercial
kitchen ventilation system within the construction site. The ventilation system should
be equipped with effective oily fume and odour removal for canteens and food
Construction Stage Assessment Manual
Page 4
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
business. The EPD “A Guide to Control of Oily Fume and Cooking Odour from
Restaurants and Food Business” shall be referred.
Item 3: This indicator is assigned to encourage IAQ control due to construction works
in occupied buildings.
The IAQ Guidelines for Occupied Buildings Under
Construction (1995), published by the Sheet Metal and Air Conditioning, Contractors’
National Association (SMACNA) or other relevant publication shall be referred. In
addition, if spatially feasible, a temporary exhaust air duct is recommended to extract
air directly from the construction area to the ambient. Air in the construction area
should be prevented from getting into the occupied space, this can be achieved by
maintaining negative air pressure in the A&A areas.
In addition, all air filters used in the construction site and its surrounding areas shall
be replaced prior to occupancy of the A&A portions.
Item 4: This indicator is assigned to control indoor air pollution at source, which is
one of the effective indoor air pollution control strategies. Building and furnishing
materials without or with low pollutant emission, particularly on VOC, is acceptable for
this indicator.
Innovation Item:
Innovative method to further improve IAQ in construction / demolition site
This is a bonus score for innovative IAQ management in the construction / demolition
site
Submittal
The following information shall be provided to demonstrate compliance with the
Strategy Indicators:
•
•
•
•
•
Relevant strategy report.
Strategy implementation records.
Relevant photographic evidence.
Other relevant supporting documentation for improved and innovative ideas.
Material Safety Data Sheet (MSDS) or manufacturer’s data sheet highlighting the
slated VOC emissions on building / furnishing materials
Construction Stage Assessment Manual
Page 5
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
IE 3
Lighting Environment
IE 3.1
Visual Quality & Comfort
Intent
To design and maintain good visual comfort in site office and enhance energy efficiency
for electric lighting installations
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
IE 3.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Design of lighting with optimum illuminance and glare control in
site office.
0
1
2
C
D
Design with daylight and electric lighting integration in site office
and allow more daylight access to the interior
0
1
3
C
D
Use of T5 fluorescent lamps in site office
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: Optimum illuminance level can reduce energy consumption as it avoids the
over-provision of lighting and produces a good indoor visual environment. Glare
control for electric lighting can be achieved by means of selecting proper designed
luminaries to limit the glare within site office. Lighting installations in various areas
and space shall achieve and maintain the optimum standard of illuminance and limit
the glare index, as recommended by the CIBSE Code for Interior Lighting (1997).
Item 2: This indicator is assigned to encourage use of daylight instead of electric
lighting, and use of automatic lighting control system for integrated daylight and
electric lighting operation. Appropriate control and sensor facilities shall be provided
to allow coordinated operation of the natural and artificial light sources, in response to
the interior requirements and outdoor daylight conditions. The integrated control shall
be able to minimize the operating period of electric lighting and to allow more use of
Construction Stage Assessment Manual
Page 6
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
daylight. Also, a more pleasant indoor environment can be created through daylight
access. However, daylight may bring along radiation to the interior and so the use of
optimum external solar shading devices and the collection of reflected daylight are
encouraged.
Item 3: Technical details for energy efficient lighting installations, as referred in the
EMSD Guidelines on Energy Efficiency Equipment: T5 Fluorescent Lamps. The T5
fluorescent lamp is recommended for all construction site office areas, where feasible.
Innovation Item:
Innovative method to further improve the indoor visual comfort and lighting
energy efficiency within construction site
This is a bonus score for innovative method to improve the visual quality and comfort
in construction / demolition site.
Submittal
The following information shall be provided to demonstrate compliance with the
Strategy Indicators:
•
•
•
•
Relevant strategy report, calculation, equipment specification.
Relevant photographic evidence.
Other relevant supporting documentation for improved and innovative ideas.
The maintained illuminance shall be calculated using lumen method as described
in the CIBSE code.
Construction Stage Assessment Manual
Page 7
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
BUILDING AMENITIES (BA)
BA 1
Safety
Pre-requisite Criteria
Intent
Stage
To provide a safe working environment in and around a construction / demolition site
C
D
Requirements
Compliance
This indicator is assigned to reassert the importance of Safety in the
overall building environmental performance through the current
statutory requirements.
Statutory requirements, no
assessment in CEPAS is
required.
Maintaining a safe environment for workers in and around a
construction / demolition site is essential for a sustainable community.
The government is endeavours in protecting and promoting health and
safety for the community. Compliance with safety related statutory
requirements are considered as minimum requirements in this
assessment scheme. Meanwhile, additional safety measures provided
by the building Developer / Owner / Contractor are recommended.
The followings are some common safety related statutory requirements
in Hong Kong.
ƒ
Code of Practice for Safety and Health at Work in Confined
Spaces
ƒ
Code of Practice for Site Safety Supervision
ƒ
Code of Practice on the Design and Construction of Builders’ Lifts
This indicator is applicable for both Construction and Demolition
Stages.
Construction Stage Assessment Manual
Page 8
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
BA 2
Management
BA 2.1
Building Management
Intent
To provide effective and environmental conscious construction management
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
BA 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Major contractors for the construction / demolition projects are
accredited with ISO 9000 quality management system
0
1
2
C
D
Major contractors for the construction / demolition projects are
accredited with ISO 14000 environmental management system
0
1
3
C
D
Major contractors for the construction / demolition projects are
accredited with OHSAS 18001 occupational health and safety
management system
0
1
4
C
D
Environmental training provided for the major contractors’
management and supervisory staff at the early stage of
construction / demolition process
0
1
5
C
D
Environmental training provided for the construction workers at the
early stage of construction / demolition process
0
1
6
C
-
Comprehensive building records provided and conveyed to building
operator and designer with satisfaction
0
1
7
C
-
Comprehensive and effective testing and commissioning works
provided and satisfy the designer’s requirements
0
1
8
C
-
Appropriate trainings of various building facilities and services
installations provided by the contractors and suppliers to the
building operators
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
Construction Stage Assessment Manual
(B)
Page 9
N/A
Total score (applicable items only)
obtained in this Sub-criteria
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: A quality management system is fundamental for effective construction
activities and essential in providing their clients with the quality of services they
require. The services provided by contractors shall be carried out in a suitably
coordinated, efficient and cost effective manner, with the guidance and restriction of
an appropriate quality management system adopted. The widely recognised ISO
9000 standard shall be referred. Major contractors include the main builder and main
building services contractors.
Item 2: An Environmental Management System is an overall management system,
which includes organizational structure, planning activities, responsibilities, practices,
procedures, processes and resources for developing, implementing, achieving,
reviewing and maintaining the environmental policy. It provides a framework for
systematic presentation of environmental information for decision making as well as
improving the environmental performance of the contractors, and enhancing their
creditability with financial institutions, insurance companies, regulators and building
Developers / Owners. The widely recognised ISO 14000 standard shall be referred.
Major contractors include the main builder and main building services contractors.
Item 3: An Occupational Health and Safety Management System is a part of the
overall management system which includes organization structure, planning activities,
responsibilities, practices, procedures, processes and resources for developing,
implementing, achieving, reviewing and maintaining the occupational health and
safety policy, and so managing the occupational health and safety risks associated
with the business of the organization.
The technical specification of OHSAS 18001 takes a structured approach to
occupational health and safety management. The elements of successfully OH&S
management are depicted as a process model consisting OH&S Policy, Planning,
Implementation and Operation, Checking and Corrective Action, Management Review
and ultimately Continual improvement. All of these processes are considerably
important to building construction and contractors should develop plan to implement.
Items 4 & 5: The indicators are assigned to encourage effective environmental
training to raise environmental awareness and knowledge of the construction project
team and workers. All staff involved in the construction project shall be included in
this training, from site management level to worker level. The guidelines as described
in the Annex 3.4: Environmental Training of the Best Practice Guide: Environment –
Best Practice Guide for Environmental Protection on Construction Sites, published by
the Hong Kong Construction Association, shall be referred. In addition, other
environmental precautions such as training of workers to avoid material breakage or
left-over during material delivery, handling and storage shall be included. An inhouse environmental trainer or external trainer can carry out the training. The training
materials shall cover general and site-specific precaution, mitigation, remedial
measures for the construction project and good working practices. Coordination
between the trainer and design team is encouraged, to enable the environmental
design concept to be fully conveyed to the contractors’ staff.
Item 6: A complete set of building records is essential for effective operation,
maintenance and management, and should therefore be handed over to the building
operator at project completion. The contractor is required to compile and provide the
following information and convey to building operator. The score in this indicator is
awarded to Contractor if the client’s representatives are satisfied with the building
records.
Construction Stage Assessment Manual
Page 10
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
ƒ
Building, structural, drainage, site formation, alterations and additions plans
approved by the Building Authority (BA); documents associated with the approval
such as calculations, undertakings, certificates, permits, etc.; and records on any
change of use of certain parts of the building accepted by the BA
ƒ
Building services as-built drawings, including fire services, underground drains,
drainage, water supply, electrical, lighting, broadcasting, gas supply, MVAC
systems, etc. The plumbing and fire services drawings shall be the approved
drawings by the Water Supplies Department and Fire Services Department
respectively.
ƒ
Layout plan for hidden utilities such as electricity cables, gas pipes, telephone
lines, etc.
ƒ
Testing, commissioning and operation manuals for building services, mechanical
components and installations.
ƒ
Maintenance certificate, installation contract, etc. of the building services
ƒ
Testing records and certificates required under Fire Service (Installations and
Equipment) Regulations
ƒ
Testing records and certificates required under Building (Ventilating Systems)
Regulations
ƒ
Testing and inspection records and certificates required under Lifts & Escalators
(Safety) Ordinance
ƒ
Testing records and certificates required under Electricity (Wiring) Regulations
ƒ
Certification for the performance of specific materials and components, as well as
warranties from specialist contractors or suppliers (e.g. on waterproofing
materials and its installation work)
ƒ
Completed CEPAS Pre-Design, Design and Construction Stages assessment
forms, results and submission details (if available).
The operation and maintenance (O&M) manual shall be prepared with user-friendlly
and well-structured format ASHRAE Guideline 4 (1993), BSRIA Application Guide
1/87 (1990), or equivalent standards can be adopted as reference for manual
preparation.
Item 7: Building commissioning is a critical part of the building handover procedure
and is important for the building’s long-term operation, as it determines the expense
of building operation and rectification works. It involves testing and balancing of the
installed systems to ensure correct and effective compliance with regulations,
specifications and design intent. To ensure the Contractor’s performance works in
testing and commissioning works, the performance testing and commissioning (T&C)
works shall cover various building systems. Reference to relevant T&C standards are
also required, such as the Testing and Commissioning Procedure for various building
systems issued by the Building Services Branch of Architectural Services Department
of HKSAR, as well as other recognized international guidelines such as those issued
by the CIBSE, BSRIA and ASHRAE. For large building projects or building with
complicated building systems, employment of a specialist commissioning agent is
recommended.
This indicator is assigned to recognize the contractors’ commitment in carrying out
comprehensive and effective T&C works prior to handover to the building operator by
means of the above-mentioned standards and guidelines. The score in this indicator
is awarded to Contractor if the T&C works are entirely satisfied by the client’s
representatives.
Item 8: Appropriate and effective training shall be arranged by contractors and
Construction Stage Assessment Manual
Page 11
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
suppliers to train the operating and maintenance staff, and familiarize them with the
building design philosophy, as well as the strategies and methods for the operation of
various building facilities and building services systems. The scope of the training
depends on the scale of the building, as well as the complexity of building services
installations and building facilities.
This indicator is assigned to recognise the contractors’ commitment in carrying out
comprehensive and effective technical training to the building operator. The score in
this indicator is awarded to Contractor if the training scope and information are
entirely satisfied by the client’s representatives.
Innovation Item:
Innovative method to further
management effectiveness
improve
the
construction
/
demolition
This is a bonus score for using innovative method to improve the construction /
demolition project management process, such as the construction program,
environmental management, construction method, construction sequence, etc.
Submittal
The following information shall be provided to demonstrate the compliance with the
Strategy Indicators:
•
•
•
•
Relevant strategy report.
Strategy implementation records.
Relevant approval letters from the client’s representatives and relevant
certificates.
Other relevant supporting documentation for improved and innovative ideas.
Construction Stage Assessment Manual
Page 12
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RESOURCES USE (RE)
RE 1
Energy Efficiency
RE 1.1
Energy Efficiency
Intent
To enhance the energy efficiency performance of construction / demolition site
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
RE 1.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Formulation and implementation of an overall energy management
strategy for the construction / demolition site
0
1
2
C
D
Formulation and implementation of an overall energy management
strategy for the site office
0
1
3
C
D
Formulation and implementation of a lighting operation strategy to
minimise unnecessary lighting operation in the construction /
demolition site at night
0
1
4
C
D
Minimum 50% of all electrical appliances and equipment used in
site offices complied with Grade 2 or better as defined in the EMSD
Energy Efficiency Labelling Scheme for Household Appliances and
Office Equipment / Multi-function Device for site office & sales
areas
0
1
5
C
D
Minimum 50% of all electrical appliances and equipment used in
sale office and show room on construction site complied with Grade
2 or better as defined in the EMSD Energy Efficiency Labelling
Scheme for Household Appliances and Office Equipment / Multifunction Device for site office & sales areas
0
1
6
C
D
Use of renewable energy in the construction / demolition site
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
Construction Stage Assessment Manual
(B)
Page 13
N/A
Total score (applicable items only)
obtained in this Sub-criteria
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: The indicator is assigned to encourage the major contractor to establish
energy management strategies for the construction / demolition site. The strategy
shall include energy saving measures, categorised energy consumption records and
an education program for site staff. A competent person shall be assigned to
supervise the development and implementation of the strategy and to monitor its’
effectiveness. Also, the use of advanced and efficient construction machineries are
encouraged in the strategy. Direct burning of coal, wood, or even rubbish on site
shall be prohibited.
Item 2: The indicator is assigned to encourage the Client and contractors to establish
energy management strategy for the temporary office in construction / demolition site.
A competent person shall be assigned to organise an energy saving education
program and to supervise and its follow up activities. Also, sufficient thermal
insulation for the temporary building fabric and minimisation of infiltration is required.
In addition, a sufficient operable window shall be provided to allow natural ventilation
during moderate seasons.
Item 3: This indicator is assigned to minimise energy wastage through unnecessary
electric lighting operation at night. For instance, use of fluorescent lamps instead of
incandescent lamp is recommended for site security use.
Items 4 & 5: This indicator is assigned to encourage the use of energy efficient
electric appliances in the site office and sale office, such as air-conditioners.
Item 6: Possible use of renewable energy on site includes wind, solar electricity, solar
thermal, etc.
Innovation method:
Modification of the design and to facilitate construction / demolition methods or
sequence that can reduce energy consumption during construction process
This is a bonus score for innovation in construction method. This indicator is
assigned to encourage the contractor to use advanced and innovative method to
further reduce energy consumption during construction. For instance, the contractor
may propose an alternative construction method with improved energy consumption,
other than the specified method in the design stage, to carry out construction work
without a major cost implication.
Submittal
The following information shall be provided to demonstrate compliance with the
Strategy Indicators:
•
•
•
Energy management strategy report with time program.
Strategy implementation records.
Relevant photographic evidence.
Construction Stage Assessment Manual
Page 14
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 2
Water Conservation
RE 2.1
Water Conservation Strategies
Intent
Encourage the implementation of water conservation strategies and provide effective
facilities
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
RE 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Use of low flow water closet in construction site office
0
1
2
C
D
Use of automatic / manual flow control faucet and control valve for
urinal in site office
0
1
3
C
-
Use of low flow water closet in sale office & show room on
construction site
0
1
4
C
-
Use of automatic / manual flow control faucet and control valve for
urinal in sale office & show room on construction site
0
1
5
C
D
Collection of rainwater for reuse within construction / demolition site
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
This indicator aims to encourage the reduction of consumption, for both potable &
flushing water. The water wastage habits of some contractors can be improved in
actively by means of education, or passively by means of manual / automatic flow
control devices for controlling water supply. Both are feasible and will achieve the
aims effectively.
Reduction in water use will not only reduce the environmental loading on both water
supply and waste treatment facilities, but also to lessen the demand for energy use,
Construction Stage Assessment Manual
Page 15
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
pumping power in the utility network, chemical treatment and the environmental
impacts in water treatment process. A variety of water saving facilities is commercially
available in Hong Kong. Automatic devices can provide a better service quality, while
some manual devices can also provide the same function.
Innovation method:
Use of other water saving device or innovative idea to reduce water
consumption in construction / demolition site
This indicator is satisfied if the innovative devices or designs can save water by 15%
of the total water consumption.
Submittal
The following information shall be provided to demonstrate the compliance of the
Strategy Indicators:
•
•
•
Relevant strategy report.
Relevant photographic and other evidence.
Other relevant supporting documentation for improved and innovative ideas.
Construction Stage Assessment Manual
Page 16
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 3
Timber Use
RE 3.1
Timber for Temporary Use
Intent
To reduce the use of timber for temporary purpose
Performance Indicators
Stage
C
D
Sub-criteria
Performance
Scale
Non-residential buildings
Residential buildings
0
No reused / recycled timber used for temporary
works
No reused / recycled timber used for
temporary works
1
≥50% of reused / recycled timber used for
temporary works (used 2 times)
≥50% of reused / recycled timber used for
temporary works (used 2 times)
2
≥80% of reused / recycled timber used for
temporary works (used 5 times)
≥ 80% of reused / recycled timber used for
temporary works (used 5 times)
3
≥90% of reused / recycled timber used for
temporary works (used 10 times)
≥90% of reused / recycled timber used for
temporary works (used 10 times)
Non-residential Buildings Score (PC-NR)
Residential Buildings Score (PC-R)
RE 3.1 Score
Explanation
Timber is a global valuable resource. The construction industry in Hong Kong
consumes a substantial amount of timber, with much of the timber being disposed to
landfill sites after minimal use. Supply of timber is becoming increasingly scarce and
there is no forest in Hong Kong that can supply timber for the industry. Reduction in
timber consumption and reuse of timber for temporary works, such as hoarding,
formwork, site office fabrication and other temporary use at sites is required. The
proportion of timber use in a typical construction site is shown as follows,
•
•
•
•
Hoarding 5%
Formwork 80%
Site Office fabrication 5%
Site accommodation 10%
Timber used for temporary work (such as formwork) for building construction is the
dominant contributing factor on appropriate resource use. The use of reused /
recycled timber for formwork could be conducted through the Contractor’s own
initiative or specified in the Design Stage.
As far as global environmental sustainability is concerned, the source of timber rather
than the type of timber is more emphasized in this indicator.
Construction Stage Assessment Manual
Page 17
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Submittal
The following information shall be provided to demonstrate the compliance of the
Performance Indicators:
•
•
•
Confirmation from the Contractor with relevant material use records.
Relevant photographic evidence.
Construction planning / method statement(s) in relation with temporary works to
illustrate the effort in reducing the use of timber and to be verified at the later stage
of the construction programme.
Construction Stage Assessment Manual
Page 18
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 3.2
Minimization of Timber Use
Intent
To minimize the use of timber during construction
Performance Indicators
Stage
C
Sub-criteria
Performance
Scale
Non-residential buildings
Residential buildings
0
Minimization < 50% of the timber use
Minimization < 50% of the timber use
1
Minimization ≥ 50% of the timber use
Minimization ≥ 50% of the timber use
2
Minimization ≥ 70% of the timber use
Minimization ≥ 70% of the timber use
3
Minimization ≥ 90% of the timber use
Minimization ≥ 90% of the timber use
Non-residential Buildings Score (PC-NR)
Residential Buildings Score (PC-R)
RE 3.2 Score
Explanation
Timber is a global valuable resource and saving of timber is our priority in conserving
our environment. The construction industry in Hong Kong consumes a substantial
amount of timber, with many of them disposed to landfill sites after minimal use.
Supply of timber becomes increasingly scarce and there is no forest in Hong Kong
that can supply timber for the industry.
Timber demand can be minimized by a number of measures during construction
including:
•
Use of large metal formwork
•
Use of metal hoarding
•
Use of precast façade and staircase using metal formwork
•
Use of semi-precast slab to replace timber slab formwork.
It is estimated that more than 90% of timber consumed in construction with traditional
method can be saved1.
1
Pang N.W. etal Green building – the housing authority experience, Seminar on “Green Building” 2003
Construction Stage Assessment Manual
Page 19
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Submittal
The following information shall be provided to demonstrate the compliance of the
Performance Indicators:
•
•
•
Confirmation from the Contractor with relevant material use records.
Relevant photographic evidence.
Construction planning / method statement(s) in relation with temporary works to
illustrate the effort on reducing the use of timber and to be verified at the later
stage of the construction programme.
Construction Stage Assessment Manual
Page 20
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 4
Material Use
RE 4.1
Recycled Material Use
Intent
Reduce material consumption and reduce demands on limited natural resources by
using recycled materials.
Performance Indicators
Stage
Sub-criteria
Performance
Scale
C
Non-residential buildings
Residential buildings
0
< 5% of materials & components used with
recycled content
< 5% of materials & components used
with recycled content
1
≥ 5% of materials & components used with
recycled content
≥ 5% of materials & components used
with recycled content
2
≥ 10% of materials & components used
with recycled content
≥ 10% of materials & components used
with recycled content
3
≥ 15% of materials & components used
with recycled content
≥ 15% of materials & components used
with recycled content
Non-residential Buildings Score (PC-NR)
Residential Buildings Score (PC-R)
RE 4.1 Score
Explanation
This indicator is assigned to encourage contractors to follow the material reuse
requirements as stipulated in the Designer’s specification, or to establish and
implement material use strategy by their own initiative. The material use strategy
shall include categorization of materials used for building construction and
refurbishment, and to determine which building parts / components can be
constructed from reused materials.
In general, this performance indicator assesses a wide range of items. Major items of
applicable recycled materials that correspond to a significant proportion of building
structure are recycled steel rebar, recycled aggregates and recycled brick and blocks.
Miscellaneous materials of plastic, packing board of paper, wood chips arid etc.
As concrete is one of the most commonly used building materials, use of PFA or
recycled aggregate in concrete are also encouraged. For large sections, PFA grading
should be specified and complied with Work Branch Technical Circular (WBTC)
14/90. Crushed concrete aggregate should also compile with the British Standard BS
882.
The use of materials that are recycled or consisted of recycled content is also
encouraged. However, it must ensure that the reuse or recycled materials have no
adverse impact to the environment.
This indicator is applicable for materials to be used in major permanent building
Construction Stage Assessment Manual
Page 21
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
components and materials, such as building structure, false ceiling, partition wall,
paint, door, window, etc.
Since a contractor has a better capability to determine the possible amount of
materials with recycled content that can be used in each specific project, the score in
the construction stage is awarded to the Contractor for increasing the percentage of
materials used with recycled content. The percentage of material used as described
in the performance indicators shall not less than the percentage of materials and
components used with recycled content specified in the Design Stage.
Submittal
The following information shall be provided to demonstrate the compliance of the
Performance Indicators:
•
•
•
•
Material use strategy report.
Reused / recycled material use record.
Other relevant evidence, such as photos.
Evidence to demonstrate that the recycled /reused materials will not cause
adverse health impact to the future building users and occupants.
The information is as required shall be able to demonstrate the recycled material
source, categorization of material used, reused locations and amount of reused /
recycled materials for building construction / refurbishment. The exact material
content in purchased recycled materials should be verified from the supplier and
submitted for review.
The quantities of reused or recycled material should be determined on the basis of
either the weight or volume of the total amount of material used. Reuse of material
could be the material/ components salvaged from the existing structure during the
demolition process and/or recycled materials from other sources and demolition sites.
The recycled content of material shall be determined by dividing the weight/volume of
recycled content in the item by the total weight/volume of all material in the item. The
percentage of materials and components reused with recycled content relative to the
total permanent materials used for building construction in the shell and core areas,
as well as the materials provided by the landlord in rental and sellable areas shall be
calculated.
Construction Stage Assessment Manual
Page 22
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 4.2
Intent
Construction Waste Recycling
To recycle construction waste generated in building construction process
Performance Indicators
Stage
C
-
Sub-criteria
Performance
Scale
Non-residential buildings / Residential buildings
0
< 3% of salvageable waste recycled and reused on or off site
1
≥ 3% of salvageable waste recycled and reused on or off site
2
≥ 5% of salvageable waste recycled and reused on or off site
3
≥ 10% of salvageable waste recycled and reused on or off site
RE 4.2 Score
Explanation
When a building is constructed or refurbished, there are often substantial quantities of
materials that are salvageable. The salvageable materials can be recycled and
recovered for use in the construction process at the same site or other sites.
Before commencement of any construction and refurbishment work, the Contractor is
expected to carry out an estimation survey and to identify and categorize various
types of salvageable materials from the building construction process in order to
maximize the scale of salvageable waste recovery.
The construction waste shall be categorized into inert and non-inert waste.
Salvageable materials, including inert waste, such as metals, bricks and tiles, as well
as non-inert waste such as timber, paper and plastic, should be removed from the
buildings before being discarded to landfill. Selective sequential demolition in
refurbishment work should be adopted to remove one type of material at one time to
avoid mixing. If the building services equipment inside the A&A site can be reused or
the metallic parts of the equipment are recyclable, hand dismantle is also
recommended. The collected construction waste shall be recovered on site and
transferred to a recovery factory or public filling area for reclamation. A certain
essential items and their corresponding percentage of recovery are suggested as
follows:
100% recovery of inert portion of excavated material and demolition debris from
construction and refurbishment works,
• 100% recovery of metallic waste,
• 100% recovery of non-contaminated paper and cardboard
•
Construction Stage Assessment Manual
Page 23
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Submittal
The following information shall be provided to demonstrate compliance with the
Performance Indicators:
•
•
•
•
•
Construction waste management plan.
Waste management records for all construction waste for reuse in the same site or
other sites, recycled and recovered in a factory, and inert material for government
reclamation.
Other relevant evidence, such as photos, drawings.
Trip-ticket record with verifications by project engineer / architect representative,
the record should record the amount of waste conveyed to landfill or public filling
area.
Receipts from recycle vendors on confirmation of recycled material received
Relevant information are required to demonstrate the recycled material sources in the
building construction work, categorization of material used, amount of reusable /
recyclable materials collected with proper handling.
The quantities of salvaged material should be determined based on either the weight
or volume of the total amount of material produced and collected. The percentage of
materials actually salvaged relative to the total amount of potentially salvageable
materials produced during the construction and refurbishment process shall be
calculated.
Construction Stage Assessment Manual
Page 24
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 4.3
Intent
Demolition Waste Recycling
To recycle demolished materials generated in building demolition process
Performance Indicators
Stage
Sub-criteria
Performance
Scale
-
D
Non-residential buildings / Residential buildings
0
< 20% of salvageable waste transfer to other site / recovery plant or on-site for recycle
and reuse
1
≥ 20% of salvageable waste transfer to other site / recovery plant or on-site for recycle
and reuse
2
≥ 40% of salvageable waste transfer to other site / recovery plant or on-site for recycle
and reuse
3
≥ 60% of salvageable waste transfer to other site / recovery plant or on-site for recycle
and reuse
RE 4.3 Score
Explanation
When a building is demolished (exclude destruction work in A&A works), there are
often substantial quantities of materials are salvageable. The salvageable materials
can be recycled and recovered for use in the construction process in the same site or
other sites or recycled in recovery plant.
Before commencement of demolition work, contractor is encouraged to carry out a
field survey and to identify and categorize various types of salvageable materials of
the building in order to maximize the scale of salvageable waste recovery. Also, hand
demolition and dismantling should be considered prior to demolition using point
breaker, bulldozer, crane ball and chain, and explosives.
The demolition waste shall be categorized into inert and non-inert waste.
Salvageable materials, including inert waste, such as metals, bricks, masonry,
excavated spoil and tiles, as well as non-inert waste such as timber, paper, plastic,
should be removed from the buildings before demolition. Selective sequential
demolition should be adopted to remove one type of material at one time to avoid
mixing. If the building services equipment inside the building can be reused or the
metallic parts of the equipment are recyclable, hand dismantle is also recommended.
The collected demolition waste shall be recovered on site, transfer to recovery plant
or public filling areas for reclamation.
Since a contractor has a better capability to determine the possible amount of
salvageable materials and to identify the possible recycling and reusable materials,
field survey together with drawings to indicate the locations of various types of
salvageable materials and a strategy plan to categorize the demolished materials for
recover and disposal are essential to reduce waste in a demolition site. Presumably,
recyclable waste salvaged for export in lieu of local consumption will also be credited
in this performance indicator.
In addition, a designated area to sort the waste material on-site before delivery to
Construction Stage Assessment Manual
Page 25
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
recovery factory and other sites, or to store the reusable materials on site for new
building construction, shall be assigned by the Contractor
Submittal
The following information shall be provided to demonstrate the compliance of the
Performance Indicators:
•
•
•
•
•
Demolition waste management plan.
Waste management records for all salvageable materials demolished and for
reuse in the same site or other site, recycled and recovered in factory, inert
material for government reclamation.
Other relevant evidence, such as photos and drawings.
Trip-ticket record with verifications by project engineer / architect representative,
the record should record the amount of waste conveyed to landfill or public filling
area.
Receipts from recycle vendors on confirmation of recycled material received
Relevant information are required to demonstrate the recycled material sources in the
building, categorization of material used, amount of reusable / recyclable materials for
the future / other building refurbishment.
The quantities of salvaged material should be determined based on either the weight
or volume of the total amount of material demolished. The percentage of salvageable
materials salvaged relative to the total amount of salvaged materials demolished and
dismantled during the demolition process shall be calculated.
Construction Stage Assessment Manual
Page 26
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
RE 4.4
Environmentally-Friendly Materials
Intent
Encourage use of environmentally friendly building materials to reduce environmental
impacts.
Performance Indicators
Stage
Sub-criteria
Performance
Scale
C
Non-residential buildings
Residential buildings
0
< 25% of environmentally friendly
materials used
< 25% of environmentally friendly
materials used
1
≥ 25% of environmentally friendly
materials used
≥ 25% of environmentally- friendly
materials used
2
≥ 50% of environmentally-friendly
materials used
≥ 50% of environmentally friendly
materials used
3
≥ 75% of environmentally friendly
materials used
≥ 90% of environmentally friendly
materials used
Non-residential Buildings Score (PC-NR)
Residential Buildings Score (PC-R)
RE 4.4 Score
Explanation
Use of environmentally-friendly material helps to minimize the life-cycle environmental
impacts. Adoption of green building materials is encouraged and should be awarded.
Meanwhile, environmentally-friendly construction methods, such as the use of system
formwork aiming to cut down wastage on site, are encouraged.
This indicator is applicable for major building materials, such as external walls,
permanent partition walls, cladding, flat roof, floor finishes, windows, curtain walls,
doors and paint, which are constructed in the shell and core area, as well as materials
provided by the landlord in rental and sellable areas. Environmental-friendly material
is defined as meeting (1) Compliance with the Hong Kong Green Label Scheme,
Product Environmental Indicator for Construction Materials, produced by the Green
Council and Hong Kong Productivity Council, or (2) Summary Rating `A’ in The Green
Guide to Specification – An Environmental Profiling System for Building Materials and
Components, BRE, or (3) `Good’ in Environmental Resource Guide, The American
Institute of Architects.
The designer and contractor are capable to determine the possible amount of
environmentally friendly materials used, the score for the construction stage is
awarded to the Contractor for increasing the use of environmentally friendly materials
in the building construction process. The percentage of material used, as described
in the performance indicators, includes the percentage of environmentally friendly
materials and components specified in the Design Stage.
Construction Stage Assessment Manual
Page 27
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Submittal
The following information shall be provided to demonstrate compliance with the
Performance Indicators:
•
•
•
Environmentally friendly material use strategy report.
Material use record and validation on the actual consumption compared with the
designed amount as written in the strategy report
Other evidence, such as photos.
The information is required to demonstrate the type of environmentally friendly
materials used, locations of applications and amount of environmentally friendly
materials used for building construction / refurbishment.
Construction Stage Assessment Manual
Page 28
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
LOADINGS (LD)
LD 1
Pollution
Pre-requisite Criteria
Intent
Stage
To minimise and mitigate outdoor pollution and the subsequent health and
environmental impacts under global and local considerations
C
D
Requirements
Compliance
This indicator is assigned to reassert the importance of pollution
reduction issues in the overall building environmental performance
through the current statutory requirements.
Statutory requirements, no
assessment is required in
CEPAS.
Construction and demolition works should be carried out in full
compliance with the Air Pollution Control Ordinance, Noise Control
Ordinance, Water Pollution Control Ordinance, Ozone Layer
Protection Ordinance and all relevant regulations, as well as statutory
Code of Practice and Technical Memorandum from various
government departments such as EPD, FEHD, AFCD, etc.
Heavy construction machineries and vehicles shall minimise effluent
discharge and satisfy statutory requirements.
Construction Stage Assessment Manual
Page 29
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
LD 1.1
Air Pollution
Intent
To minimise and mitigate outdoors air pollution and the subsequent local and global
health and environmental impacts.
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
LD 1.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Construction / demolition site air pollution and dust control
management plan formulated and implemented by Contractor
0
1
2
C
D
Site personnel(s) are designated to carry out regular inspections on
the effectiveness of air pollution control measures, and to carry out
dust control in construction / demolition site
0
1
3
C
D
Construction / demolition works that leads to significant amount of
dust generation shall be provided with proper sheltering to minimise
dust spread
0
1
4
C
-
To store dusty materials in enclosed area, to carry out dusty
material mixing works within sufficient sheltering, and to perform
dust suppression measures to minimise dust spread
0
1
5
C
D
All refrigerants used for air-conditioning systems in site office are
zero ozone depleting potential
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Dust, odour and incompletely combusted substances are the most common pollutant
source in construction sites, due to various construction and demolition activities.
Effective and comprehensive air pollutant control is required to minimise the spread of
Construction Stage Assessment Manual
Page 30
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
pollutants within the site and to the surrounding area. Good management and
implementation strategy will reduce the health risk to the personnel within a site.
Item 1: This indicator is assigned to encourage the establishment of an air pollutant
management strategy and to implement the strategy effectively. The `Air’ aspect as
described in the checklist for site planning, Annex 3.3 of the Best Practice Guide:
Environment – Best Practice Guide for Environmental Protection on Construction
Sites, published by the Hong Kong Construction Association, shall be referred.
Item 2: This indicator is assigned to encourage effective implementation of dust
control measures in a construction / demolition site. The checklist as described in
Annex 4.4 of the Best Practice Guide: Environment – Best Practice Guide for
Environmental Protection on Construction Sites, published by the Hong Kong
Construction Association, shall be referred. The designated person is required to
carry out regular inspections of the construction site, according to the guideline.
Items 3 to 4: The indicators described are the most common air pollutant issues in
construction / demolition site. The indicators are assigned to encourage effective
dust control during the construction and demolition process. Any plan formulation or
dust control measures shall also be in line with the requirements as stipulated in the
Air Pollution Control (Construction Dust) Regulation.
Item 5: Reduction of ozone-depleting substances will benefit the global and local
environment. The aim of this indicator is to reduce the release of ozone depleting
substances such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons
(HCFCs) into the atmosphere from building materials and service systems. CFC and
HCFC heavily implicates in the depletion of the ozone layer. The majority of CFC and
HCFC related substances come from heating, ventilation, air conditioning and
refrigeration equipment.
This indicator is assigned to award the use of
environmentally-friendly refrigerant in air conditioning equipment.
Innovation Item:
Other innovative method to further reduce air pollution generated from
construction / demolition process
This is a bonus score for innovation in reducing air pollution generated on site.
Submittal
The following information shall be provided to demonstrate the effectiveness of the
implementation and compliance with the Strategy Indicators:
•
•
•
•
Air pollution management strategy.
Strategy implementation records.
Relevant evidence such as photos, checklists, equipment specification and
drawings.
Other relevant supporting document for improved and innovative ideas.
Construction Stage Assessment Manual
Page 31
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
LD 1.2
Water Pollution
Intent
To minimise and mitigate water pollution and the subsequent health and environmental
impacts in global and local considerations
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
LD 1.2 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Construction / demolition site water pollution management plan
formulated and implemented by Contractor
0
1
2
C
D
Site personnel(s) designated to carry out regular inspection and on
the effectiveness of water pollution control measures
0
1
3
C
D
Separate rainwater drainage path is provided such that
contaminated waste water discharge to rainwater system can be
avoided
0
1
4
C
D
Minimisation and treatment of wastewater from building
construction / demolition
0
1
5
C
D
Reuse of washing water and providing silt removal facilities before
discharged to drain
0
1
6
C
D
Soil and waste water from construction site toilets discharged to
government sewer
0
1
7
C
-
Effective grease trap is provided for each site canteen
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Wastewater from construction / demolition site mainly comes from rainwater stream,
site toilets, site canteens, water effluent from construction process and cleansing.
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COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Effective water pollution control methods shall be provided to minimise adverse
environmental impact. All wastewater pollution control strategies shall be
implemented together with routine inspection and maintenance is required.
Item 1: This indicator is assigned to encourage establishment of water pollutant
management strategy and to implement the strategies effectively. The `Water
Quality’ aspect as described in the checklist for site planning, Annex 3.3 of the Best
Practice Guide: Environment – Best Practice Guide for Environmental Protection on
Construction Sites, published by the Hong Kong Construction Association, shall be
referred.
Item 2: This indicator is assigned to encourage effective implementation of water
pollution control measures in construction site. The checklist as described in Annex
6.2 of the Best Practice Guide: Environment – Best Practice Guide for Environmental
Protection on Construction Sites, published by the Hong Kong Construction
Association, shall be referred. The designated person is required to carry out regular
inspections on the construction site according to the guidelines.
Item 3: In construction / demolition site, rainwater usually mix with soil and sand and
creates a sand stream. Solid barrier or sand bags are possible means to filter the
rainwater collection path, and to minimize soil and sand discharge into rainwater
drain. Surface run-off from construction / demolition site are discharged into storm
drains via adequately designed sand / silt removal facilities such as sand traps, silt
traps and sediment basins. The sections for `Surface Run-off and Ground Water’ in
the EPD ProPECC PN1/94 shall be referred.
Item 4: Wastewater generated from general building construction / demolition
activities, such as concreting, plastering, cleansing, are discharged into foul sewers
with sufficient silt removal facility and pH adjustment. The section for `Wastewater
from Building Construction’ in the EPD ProPECC PN1/94 shall be referred.
Item 5: Boring and drilling water, wheel washing water and the water for testing &
sterilization of water retaining structures and water pipes, are reused after
sedimentation. Discharge of the waste water into storm drains shall be filtered via silt
removal facilities. For discharging of Bentonite slurries, acid cleaning, etching and
pickling wastewater shall be treated properly before discharging to foul sewers.
Relevant sections in the EPD ProPECC PN1/94 shall be referred.
Item 6: Wastewater discharged from toilet shall be discharged to government sewer
as far as possible. For remote site, small sewage treatment plant can be constructed
in accordance with the EPD ProPECC PN1/94.
Item 7: Grease trap shall be sufficiently large to separate grease and wastewater
effectively. Cleansing and inspection openings shall also be provided. The
guidelines as described in the EPD ProPECC PN1/94 shall be referred.
Innovation Item:
Other innovative method to further reduce water pollution generated from
construction / demolition process
This is a bonus score for innovation in reducing water pollution generated on site.
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
•
•
Water pollution management strategy.
Strategy implementation records.
Relevant evidence such as photos, checklists, equipment specification and
drawings.
Other relevant supporting document for improved and innovative ideas.
Construction Stage Assessment Manual
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
LD 1.3
Noise Pollution
Intent
To minimise and mitigate noise pollution and the subsequent health and environmental
impacts in global and local considerations
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
LD 1.3 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Formulation and implementation of a good management plan for
the control of noise pollution at the construction / demolition site.
0
1
2
C
D
Designation of site personnel(s) for conducting regular inspection
on the effectiveness of noise control measures.
0
1
3
C
-
Reduce noise from construction activities based on EPD nonstatutory requirements
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Noise from construction / demolition site mainly generated from work process and
machineries. Effective noise pollution control methods shall be provided to minimise
adverse environmental impact. All noise pollution control strategies shall be
implemented together with routine inspection and maintenance.
Item 1: This indicator is assigned to encourage establishment of noise management
strategy and to implement the strategies effectively. The `Noise’ aspect as described
in the checklist for site planning, Annex 3.3 of the Best Practice Guide: Environment –
Best Practice Guide for Environmental Protection on Construction Sites, published by
the Hong Kong Construction Association, shall be referred.
Item 2: This indicator is assigned to encourage effective implementation of noise
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
pollution control measures in construction site. The checklist as described in the
Annex 5.2 of the Best Practice Guide: Environment – Best Practice Guide for
Environmental Protection on Construction Sites, published by the Hong Kong
Construction Association, shall be referred. The designated person is required to
carry out regular inspection on the construction site according to the guidelines.
Item 3: The EPD ProPECC PN 2/93: Noise from Construction Activities – Nonstatutory Controls shall be referred.
Innovation Item:
Other innovative method to further reduce noise pollution generated from
construction process
This is a bonus score for innovation in reducing noise pollution generated on site.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
•
•
Noise pollution control strategy.
Strategy operation records.
Relevant evidence such as photos, checklists, equipment specification and
drawings.
Other relevant supporting document for improved and innovative ideas.
Construction Stage Assessment Manual
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
LD 2
Waste Management
Pre-requisite Criteria
Intent
Stage
To reduce waste generation, disposal and the associated environmental impacts
C
D
Requirements
Compliance
This indicator is assigned to reassert the importance of waste
reduction issues in the overall building environmental performance.
Statutory requirements, no
assessment in CEPAS is
required.
Carry out construction and demolition works with full compliance to the
Waste Disposal Ordinance and all relevant regulations from various
government departments such as EPD, FEHD, AFCD, etc.
Some buildings with hazardous waste disposal (e.g. Chemical and
Asbestos) during construction / demolition should also abide by the
corresponding Ordinances, Guidelines and Codes of Practice from
EPD (e.g. Waste Disposal (Chemical Waste) (General) Regulation).
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
LD 2.1
C&D Waste Management
Intent
To encourage the implementation of effective construction and demolition waste
management plan to reduce, recycle and reuse C&D waste
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
Innovation
0 or 1
LD 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Contractor established and implemented a construction, demolition
& municipal waste management plan in construction / demolition
site
0
1
2
C
D
Designated person(s) to inspect the implementation effectiveness
on various waste management strategies regularly
0
1
3
C
D
Designated centralised space(s) and facilities for sorting and
storage of recyclable and non-recyclable waste specified
0
1
4
C
D
Provision of air tight system to store organic waste that may leads
to bad smell and hygienic problem
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
This indicator aims to assess the establishment of waste management strategies and
provision of facilities for sorting and storage of municipal, construction and demolition
waste. Specific area shall be assigned for different waste types, such as organic, nonrecyclable and recyclable wastes. The sorting of waste type can be carried out
manually or automatically in the designated area(s).
Hong Kong is facing serious long-term problems with poor management of
construction and demolition (C&D) waste materials in the current practices. Relying
on reclamation projects as the major outlets in reusing the inert C&D materials is
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
extremely unstable and would not be sustainable in the long run. Meanwhile, many
salvageable materials discarded, demolished and dismantled in demolition and
construction site are usually disposed into public landfill that leads to a serious land
burden for this city.
Item 1: This indicator is assigned to encourage contractors to implement effective
construction and demolition waste management to reduce, recycle and reuse C&D
waste. To comply with this indicator, the main contractor is required to formulate a
comprehensive waste management plan and carry out weekly implementation
records. The main contractor and developer’s / owner’s representative shall monitor
contractor’s performance and implementation records on C&D waste management.
To comply with this indicator, the C&D waste management on construction and
demolition site shall follow the methodologies and criteria as stipulated in the ETWB
Technical Circular (Works) No. 19/2005: Environmental Management on Construction
Sites. Reduction, Reuse and Recycling of C&D materials are the principles of the
waste management plan. C&D waste is categorized into inert and non-inert wastes.
The salvageable C&D waste can be reused on the same site or in other sites, or
recycled and recovered in factory. Salvageable materials, including inert waste, such
as metals, bricks and tiles, as well as non-inert waste such as timber, paper, plastic,
should be addressed in the waste management plan.
For inert waste, the Waste Flow Table as described in the ETWB Technical Circular
(Works) No. 15/2003 shall be used. In addition, the main contractor shall formulate
relevant weekly record tables to record the salvageable inert and non-inert C&D
waste being generated, C&D waste that have been reused for the same site or other
sites, disposal as public fill and transferred to factory for recovery. For inert C&D
wastes, the record tables and their waste categorisation as described in the CEDD
Technical Circular No. 42/2004 shall be used as reference for contractor’s
management plan formulation. For non-inert waste, the record format shall be similar
to that of inert waste, but the categorisation shall include, but not limited to timber,
paper, plastics, etc.
The waste management plan shall be formulated specifically for the site construction
and demolition activities. The waste management plan shall include, but not limited to
the key types of waste to be reduced, waste reduction targets, waste reduction
programmes, packaging waste management and waste disposal procedures. Apart
from that, effective implementation is required to ensure the strategies are applicable
to all site workers and cover the entire site area, including site office. The strategies
can be in form of educational basis, instructions or guidelines.
Besides, the EPD guidelines on Site Practice for Waste Reduction in Construction
Industry shall also be referred.
Item 2: Designated person(s) are required to inspect the implementation
effectiveness of various waste management strategies on site every week. The
designated person(s) should ensure the strategies are implemented according to the
guidelines as stipulated in the waste management plan and keep up-to-date with the
waste management records.
The designated person(s) shall arrange guiding and warning materials, such as
information sheet and poster, to ensure all workers and staff on site acknowledge the
target and method of the C&D waste management plan. Also, the designated
person(s) shall look for improvement strategies to enhance the effectiveness of waste
management and maximising the recyclable waste collection and reuse.
Item 3: Centralised space(s) could be allocated in form of open space or enclosed
area, but enclosed area is recommended. However, for open space storage,
sufficient distance away from the working space shall be maintained so as to
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
minimize both odour and health risks. The centralised space shall be located with
convenient waste delivery access and with minimal environmental impact due to
waste transportation within the site. The waste shall be at least classified to inert and
non-inert, organic (e.g. from site kitchen), paper, masonry, timber, metals, plastics,
concrete and excavated spoil categories. The checklist as described in the Annex 7.3
& 7.4 of the Best Practice Guide: Environment – Best Practice Guide for
Environmental Protection on Construction Sites, published by the Hong Kong
Construction Association, shall be referred.
Item 4: Exposed waste storage, particularly for organic waste, leads to unwanted
odour and health risks to the surroundings. Provision of self-closing air tight system
could be in automatic or manual operations.
Innovation method:
Innovative method to reduce waste generation or effective waste management
in construction / demolition site
This is a bonus score for innovation in construction and demolition waste
management.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
•
•
Waste management plan.
Strategy implementation records.
Relevant evidence such as photos, checklists, equipment specification and
drawings.
Other relevant supporting document for improved and innovative ideas.
Construction Stage Assessment Manual
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
SITE AMENITIES (SA)
SA 1
Landscape
SA 1.1
Tree Preservation
Intent
To preserve and protect existing trees within the construction / demolition site
Performance Indicators
Stage
C
D
Sub-criteria
Performance
Scale
Non-residential buildings / Residential buildings
0
Without effective tree preservation and protection measures in site
1
-
2
Effective tree preservation and protection measures provided by Contractor in site (for
all designated trees retain on the original locations or other places)
3
Effective tree preservation and protection measures provided by Contractor in site
(for all designated trees including old & valuable trees (if any) retain on the original
locations)
SA 1.1 Score
Explanation
This indicator is assigned to encourage effective tree preservation and protection
measures provided and implemented by the Contractor, with the support of Developer
and Designers. The existing trees with good amenity value shall be incorporated in
the landscape design of the new development, to form part of the landscape area.
Survey to existing trees is required at the Design Stage. To comply with this
indicator, all identified and designated healthy trees within the site shall be retained,
preserved and protected by the Contractor within the site or transferred to other site
for reuse. Implementation and monitoring of the tree protection measures on site to
minimize the adverse impact to the preserved trees due to construction activities shall
be included. Specific tree preservation of transplantation measures shall be
formulated for large trees with high amenity value.
The pre-requisite requirements for this indicator are field survey, and preservation
and reuse of all existing healthy trees within the site that have been designated by the
designer / client at the Design Stage. Damaging of any designated healthy existing
trees due to improper protection and preservation is not eligible to obtain score in this
indicator.
The definition of old and valuable trees shall refer to the ETWB Technical Circular
(Works) No. 29/2004: Registration of Old and Valuable Trees, and Guidelines for their
Preservation. Retaining all existing old & valuable trees at the original locations is
required due to lesser potential damage to the trees. Retaining of other old trees at
the original locations is also encouraged. Therefore, additional score is awarded if all
designated trees as identified in the design stage are retained at the original
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COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
locations.
Submittal
The following information shall be provided to demonstrate the compliance of the
Performance Indicators:
•
•
•
•
Tree protection and re-planting strategy.
Tree survey and delivery records.
Drawings showing the existing and new tree locations and numbers.
Specific method statement for tree preservation and transplantation and
monitoring reports for tree preservation works.
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
SA 2
Security
SA 2.1
Security
Intent
To provide effective security measures in construction / demolition site
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
SA 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Effective passive security facilities provided in construction /
demolition site
0
1
2
C
D
Effective active security measures provided in construction /
demolition site
0
1
3
C
D
No construction materials / demolished salvageable materials lose
reported to police throughout the entire construction period
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: This indicator is assigned to encourage implementation of effective passive
security facilities in construction / demolition site, such as security guard stand,
access barrier / gate, security fence. Reasonable quantities of facilities and provisions
shall be provided in according with the scale and complexity of the site.
Item 2: This indicator is assigned to encourage implementation of effective active
security facilities in the construction / demolition site, such as closed circuit television
(CCTV), door alarm, electronic access control and security guards, etc. Sufficient
facilities and provisions shall be provided in order to reflect the scale and complexity
of the site.
Item 3: Lose of construction materials may lead to delay of construction program and
additional construction cost. Lose of demolished salvageable materials also reflect
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
inadequacy of security measures on site. Police’s record on construction site lose
case report is a good indicator in determining the effectiveness of site security. In
order to comply this indicator, contractor should declare that they have no
construction materials / demolished salvageable materials lose case reported to
police throughout the construction / demolition period.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
•
Security strategy report.
Strategy implementation records.
Drawings showing security measures.
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
NEIGHBOURHOOD AMENITIES (NA)
NA 1
Sustainability Economics
NA 1.1
Sustainability Economics
Intent
To recognise the effort of the additional expenditure on improving environmental
performance in construction / demolition site and its surroundings
Performance Indicators
Stage
Sub-criteria
Performance
Scale
C
D
Non-residential buildings / Residential buildings
0
Financial contribution on improving environmental performance: <0.1% final
construction / demolition cost
1
Financial contribution on improving environmental performance: 0.1% ≤ expenditure
<1.5% final construction / demolition cost
2
Financial contribution on improving environmental performance: 1.5% ≤ expenditure
<1% final construction / demolition cost
3
Financial contribution on improving environmental performance: ≥ 1% final construction
/ demolition cost
NA 1.1 Score
Explanation
Sustainability economics relates to the estimated additional investment provided by
the developer/client (include the cost contributed by contractor on improving
environmental performance within CEPAS context) to pay for the building
construction and demolition that are beneficial to improve the environmental and
social performance.
Expenditure on improving environmental performance is essential as a driving force
of performance enhancement in the entire construction / demolition process. The
actual cost expenditure to provide facilities and carry out environmental improvement
measures shall be calculated and compared with the final construction / demolition
cost.
The expenditure shall include construction / demolition cost spend on facilities,
equipment and installations, as well as the professional service cost of various
building environmental survey, study and analysis works, during construction /
demolition work period.
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COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Submittal
The following information shall be provided to demonstrate the compliance of the
Performance Indicators:
•
Cost calculation and relevant evidence.
Construction Stage Assessment Manual
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
SITE IMPACTS (SI)
SI 1
Nature Conservation
SI 1.1
Nature Conservation
Intent
To conserve and enhance the natural environment by protecting the ecological value of
the site in terms of habitat and biodiversity
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
SI 1.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
If habitat ecological value was identified on site in the Design / PreDesign Stage and designed to conserve, sufficient protection
measures are provided by Contractor
0
1
2
C
D
If biodiversity ecological value was identified on site in the Design /
Pre-Design Stage and designed to conserve, sufficient protection
measures are provided by Contractor
0
1
3
C
D
Contractor established a site ecological value protection strategy in
the early stage of construction / demolition work
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Hong Kong contains large area of natural landscapes, which support a diverse
assemblage of plant and animal species. However, the expanding building
development, connecting roads and parking areas, are endangering the wildlife
corridors and leave lesser room for the survival of species. Therefore, at site level,
CEPAS encouraged creating or retaining habitats for the use of indigenous species to
maintain / increase the local biodiversity. The natural environment is a valuable asset
belonging to the people in Hong Kong and their future generations. New
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developments could lead to non-recreatable nature environment for the habitats.
A survey on the site-wide ecological value is encouraged in the Design / Planning
Stage. If habitat and biodiversity ecological value are identified on a construction /
demolition site, this indicator is assigned to encourage proper and effective protection
of biodiversity and habitat ecological value on the site. The indicators can be scored
only if the ecological value can be well protected and maintained until the handover to
next building stage.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
Site ecological value protection strategy report.
Relevant drawings and photo evidence.
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
SI 2
Heritage Conservation
SI 2.1
Heritage Conservation
Intent
To conserve and protect archaeological and historic buildings, monuments, components
and artefacts
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
SI 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Contractor established a site cultural heritage protection strategy in
the early stage of construction / demolition work
0
1
2
C
D
If buildings, monuments, components and artefacts with cultural
heritage value were identified on site in the Design / Planning
Stage and designed / planned to conserve, sufficient protective
measures are implemented by contractor
0
1
3
C D
Contractor established preventive measures to minimize adverse
structural and environmental impacts towards the immediate
adjacent building(s) with cultural heritage value
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
If the existing building on site has a cultural heritage value, reuse of the building is
encouraged. This practice is common in many European countries, Mainland China
and other some countries. Unfortunately, many developers or building owners in
Hong Kong are unwilling to reuse the existing building but prefer to rebuild a building
with more sellable floor area. Hence, this indicator is assigned to encourage reuse of
existing building with heritage value. Reuse of the entire building, or a large portion of
existing building, such as building envelope, courtyard, are acceptable in this
indicator.
A survey on the site-wide cultural heritage value is encouraged in the Design / Pre-
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design Stage. If the existing building, monuments or their components and artefacts
on site are identified with cultural heritage value in the site survey during Design /
Pre-design Stage, the designated building or portions for reuse or transfer to other
site shall be well protected and maintained.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
Site cultural heritage protection strategy report.
Relevant drawings and photo evidence.
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BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
SI 3
Buildability
SI 3.1
Buildability
Intent
To construct the building and its facilities ease of construction and less materials used,
and encourage the use of innovative construction technology to enhance buildability
Strategy Indicators
Sub-criteria
Performance
Scale
Non-residential buildings
Residential buildings
0
0 ≤ PC < 0.25
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
0.75 ≤ PC ≤ 1
Innovation
0 or 1
0 or 1
Residential Buildings Score (PC-R)
Non-residential Buildings Score (PC-NR)
SI 3.1 Score
Item
Stage
Non-residential
Strategy
No
Yes
N/A
Residential
No
Yes
1
C
-
Widely use of precast structure other than that
specified in the Design Stage
0
1
0
1
2
C
-
Widely use of full precast module and / or integrated
services module other than that specified in the
Design Stage
0
1
0
1
3
C
-
Use of other precast components in building other
than that specified in the Design Stage
0
1
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL
(A)
Explanation
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
Total maximum score (applicable
items only) in this Sub-criteria
RESIDENTIAL
(B)
(B)
N/A
(B)/(A) = PC
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Standardised building components, simple installation details and building services
systems, pre-fabricated building elements, shortest services routes, integrated
building components, simple site fabrication works, storage management of
construction site materials, are possible methods to enhance buildability. These
components usually have relatively lower energy content compared with the in-situ
ones and provide material wastage. Wider use of prefabrication is one of the solutions
Construction Stage Assessment Manual
Page 51
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
that help to overcome many of these problems inherent in in-situ construction. Shorter
construction period and lesser material consumed could be the benefits by better
buildability.
Construction process usually requires heavy demand on technologies, logistic
management, site supervision and quality assurance. Also, construction works give
rise to considerable environmental problems, such as dust nuisance from on-site
concrete mixing, noise from the use of metal formwork, excessive waste from the use
of timber formwork, and muddy site run-off. The contractor is encouraged to adopt
innovative method, and to create project-specific construction technologies to satisfy
the high quality requirements of various construction activities as well as the
buildability. The developer will be benefited by the new technology to gain a better
profit, whilst the Contractor is benefited by sound technical competitiveness.
In addition, simple building services installation details, shorter services routes and
simple site fabrication methods are also encouraged to improve buildability.
To further minimise the cost and energy consumption for transportation of precast
structure as well as to maintain the local labour activities, the indicators encourage
pre-fabrication structures, modules and components manufactured in Hong Kong .
Item 1: This indicator is assigned to encourage widely adoption of other precast
structure such as precast slab, staircase, column, beam, etc. This indicator is
awarded if precast structure is proposed and provided by the Contractor other than
the precast structure specified in the Design Stage.
Item 2: This indicator is assigned to encourage widely adoption of full precast
module, such as residential flat, modular office, and the adoption of integrated
services module, such as prefabricated toilet unit, plant room unit, bathroom unit,
which completed with full building services equipment, pipes, ducts and cable
containments. This indicator is awarded if full precast module and / or integrated
services module is proposed and provided by the Contractor other than the full
precast module / integrated service module specified in the Design Stage.
Item 3: This indicator is assigned to encourage the use of other precast component in
building, such as meter chamber, services riser, refuse chute, standardized door leaf
opening, window, etc. This indicator is awarded if precast component is proposed
and provided by the Contractor other than the precast components specified in the
Design Stage.
Innovation Item:
Use of other improved and innovative building technology to enhance the
buildability and minimise environmental impacts
This indicator is assigned to encourage improved and innovative building technology
to enhance buildability and minimise environmental impacts. This is a bonus point for
buildability.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
Relevant technical proposals, drawings, implementation records and photo
evidence.
Other relevant supporting document for improved and innovative ideas.
Construction Stage Assessment Manual
Page 52
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
NEIGHBOURHOOD IMPACTS (NI)
NI 1
Environmental Impact Assessment
Pre-requisite Criteria
Intent
Stage
To avoid environmental impacts and to minimise and control the adverse effects due
to environmental impacts during construction / demolition process
C
D
Requirements
Compliance
This indicator is assigned to reassert the importance of environmental
impact assessment in the context of building environmental
performance.
Environmental Impact Assessment (EIA) as stipulated in the
Environmental Impact Assessment Ordinance and the Technical
Memorandum on Environmental Impact Assessment Process not only
is a strategic process, but also is an active planning tool for building
development. It aims to achieve a balance between environmental
management and development decision.
Construction Stage Assessment Manual
Page 53
The Contractor is required
to expedite all required
measures to minimise the
potential
environmental
impacts. The Developer is
required to monitor the
effectiveness of the impact
minimisation
measures
provided by the Contractor.
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
NI 2
Environmental Interactions
NI 2.1
Environmental Nuisance
Intent
To minimise adverse environmental nuisance towards the surrounding buildings and
streets due to construction / demolition process
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
NI 2.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Designate a proper site material storage area to minimise nuisance
to the surroundings
0
1
2
C
D
Designate a proper hoisting facilities locations to minimise the risk
to the surroundings
0
1
3
C
D
Implement other environmental nuisance control measure in
construction / demolition site
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: This indicator is assigned to encourage contractors to designate a proper
area to store site materials in order to reduce nuisance to the surroundings. For
instance, cutting machine shall be located in the site far away from site boundary and
nearby buildings. Sand or similar materials shall be located away from windy
locations within the site such that blowing of sand to the surroundings can be
minimized.
Item 2: This indicator is assigned to encourage contractors to designate a proper
area to locate hoisting facilities in order to reduce the risk to the surroundings. The
hoisting locations and materials hanging path shall avoid locating directly above the
worker circulation area in the site and site surrounding pavements. If this is
inevitable, movable barrier and / or warning signs shall be provided and installed to
separate the material hanging paths and human circulation paths.
Construction Stage Assessment Manual
Page 54
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Item 3: Apart from the environmental nuisance control measures as described in
Items 1 and 2, other nuisance control measures are encouraged to consider. The BD
PNRC 17: Control of Environmental Nuisance from Construction Sites shall be
referred for this indicator. Common environmental nuisance are identified in the
practice note, and some of them are statutory requirements and some are not. The
checklist can be used as reference to minimise environmental nuisance. This
indicator is assigned to award the contractor who has implemented all environmental
nuisance control measures (where relevant to the construction / demolition site) as
described in the BD PNRC 17.
Meanwhile, the Contractor is encouraged to minimize site activities that cause
nuisance to the surrounding road, utilities and pass-by, such as long-term road
evacuation near heavy traffic streets, long-term utility services suspension, loading /
unloading of building materials at the site entrance that forms a barrier to the
surrounding pavements and streets, etc.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
•
Relevant technical proposals, drawings, implementation records and photo
evidence.
Other relevant supporting document for improved and innovative ideas.
Construction Stage Assessment Manual
Page 55
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
NI 3
Impacts to Communities
NI 3.1
Impacts to Communities
Intent
To encourage public participatory considered construction / demolition activities, and to
minimize nuisance generated from the site that cause adverse impacts to the
community and surroundings
Strategy Indicators
Sub-criteria
Performance Scale
Non-residential / Residential buildings
0
0 ≤ PC < 0.25
1
0.25 ≤ PC < 0.5
2
0.5 ≤ PC < 0.75
3
0.75 ≤ PC ≤ 1
NI 3.1 Score
Item
Stage
Non-residential /
Residential
Strategy
No
Yes
1
C
D
Contractor to identify the potential sensitive receivers nearby the
site due to construction / demolition activities.
0
1
2
C
D
Establish a continuous communication channel among the
Developer / Owner, Contractor and the surrounding residents and
building users.
0
1
3
C
D
Contractor to designate a person to record and review the opinion,
complaints and advices provided by the surrounding residents and
building users, and to coordinate with the project staff to improve
the site activities.
0
1
(A)
Total maximum score (applicable
items only) in this Sub-criteria
NON-RESIDENTIAL +
RESIDENTIAL
Explanation
(B)
N/A
Total score (applicable items only)
obtained in this Sub-criteria
Sub-criteria performance score (PC)
(B)/(A) = PC
Item 1: This indicator is assigned to encourage contractors to identify potential
sensitive receivers near the construction / demolition site due to site activities. The
Contractor shall avoid site activities with severe nuisance to the identified sensitive
receivers (e.g. school, hospital, residential flats) where possible, and to provide
protective and remedial measures.
Item 2: This indicator is assigned to encourage a continuous communication between
the building Developer / Owner, Contractor and the surrounding residents and
building users. A communication channel for the surrounding residents and building
Construction Stage Assessment Manual
Page 56
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
users to convey their opinions, complaints and advices shall be established such that
the building Developer / Owner / Contractor is able to adjust the new building
construction / demolition method and remedial works to minimize the environmental
and safety impacts to the communities.
Item 3: This indicator is assigned to encourage the Contractor to designate a person
to record and review the opinion, complaints and advices raised by the surrounding
residents and building users. The personnel can be a site-based staff or office-based
staff, who coordinates with the project site staff to improve the construction /
demolition activities where feasible.
Submittal
The following information shall be provided to demonstrate the implementation
effectiveness and compliance of the Strategy Indicators:
•
Relevant technical proposals, drawings, implementation records and photo
evidence.
Construction Stage Assessment Manual
Page 57
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
APPENDIX 1. LIST OF ABBREVIATIONS
The following abbreviations shall be referred in this assessment scheme:
A&A
ACH
AFCD
AP
ArchSD
ASHRAE
BA
BD
BRE
BREEAM
BS
BSRIA
C&D
CASBEE
CCMS
CEDD
CEPAS
CIBSE
CIE
CIRIA
COP
DSD
EIA
EMGB-Taiwan
Addition and Alternation
Air Change per Hour
Agriculture, Fisher and Conservation Department, HKSAR Government
Authorized Person
Architectural Service Department, HKSAR Government
American Society of Heating, Refrigerating and Air-conditioning Engineers, USA
Building Authority, HKSAR Government
Buildings Department, HKSAR Government
Building Research Establishment, UK
Building Research Establishment Environmental Assessment Method, UK
British Standard
Building Services Research and Information Association, UK
Construction and Demolition
Comprehensive Assessment System of Building Environmental Efficiency for Japan
Central Control and Monitoring System
Civil Engineering and Development Department, HKSAR Government
Comprehensive Environmental Performance Assessment Scheme
Chartered Institution of Building Services Engineers, UK
Commission Internationale de Eclairage
Construction Industry Research and Information Association, UK
Code of Practice
Drainage Services Department, HKSAR Government
Environmental Impact Assessment
Evaluation Manual for Green Buildings in Taiwan 綠建築標章
EMO
EMSD
EPD
ETWB
EUI
FEHD
FSD
GBC
GBTool
GFA
GHEM - PRC
Energy Management Opportunity
Electrical and Mechanical Services Department, HKSAR Government
Environmental Protection Department, HKSAR Government
Environmental, Transport and Works Bureau, HKSAR Government
Energy Utilisation Index
Food and Environmental Hygiene Department
Fire Services Department, HKSAR Government
Green Building Challenge
Green Building Tool
Gross Floor Area
Green House Evaluation Manual – China Assessment Handbook for Ecological
Residential Building 中國生態住宅技術評估手册
HK-BEAM
HKHA
HKHD
HKIA
HKIE
HKIP
HKIS
Hong Kong Building Environmental Assessment Method
Hong Kong Housing Authority, HKSAR Government
Hong Kong Housing Department, HKSAR Government
The Hong Kong Institute of Architects
The Hong Kong Institution of Engineers
Hong Kong Institute of Planners
The Hong Kong Institute of Surveyors
Construction Stage Assessment Manual
Page 58
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
HKPolyU
HKSAR
HVAC
HVACR
HVCA
IAQ
IBI
IEQ
IESNA
ISO
LA
LandsD
LEED
LCA
LCC
NABERS
N/A
O&M
ODS
OTTV
PlanD
PGBC
PNAP
PNRC
ProPECC PN
SC
SDU
®
SPeAR
SUSDEV21
WSD
The Hong Kong Polytechnic University
Hong Kong Special Administrative Region of the People’s Republic of China
Heating, Ventilation and Air-Conditioning
Heating, Ventilation, Air-Conditioning and Refrigeration
Heating and Ventilating Contractors Association, UK
Indoor Air Quality
Intelligent Building Index, Hong Kong
Indoor Environmental Quality
Illumination Engineering Society of North America
International Organization for Standardization
Land Authority, HKSAR Government
Lands Department, HKSAR Government
Leadership in Energy and Environmental Design, USA
Life Cycle Analysis
Life Cycle Costing
The National Australian Building Environmental Rating System of Australia
Not Applicable
Operation and Maintenance
Ozone-depleting substances
Overall Thermal Transfer Value
Planning Department, HKSAR Government
Professional Green Building Council, Hong Kong
Practice Notes for Authorised Persons and Registered Structural Engineers, issued by
BD, HKSAR Government
Practice Notes for Registered Contractors, issued by BD, HKSAR Government
Professional Persons Environmental Consultative Committee Practice Notes, issued by
EPD, HKSAR Government
Site Coverage
Sustainable Development Unit, HKSAR Government
Sustainable Project Appraisal Routine
st
Sustainable Development for the 21 Century, HKSAR Government
Water Supplies Department, HKSAR Government
Construction Stage Assessment Manual
Page 59
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
APPENDIX 2. SUMMARY OF CEPAS INDICATORS
CONSTRUCTION STAGE
Categories
Sub-criteria
Indicators
C
D
N
R
Space provision for cleansing facilities and storage of
cleansing equipment
√
√
√
√
Regular cleansing and good housekeeping in toilets and site
office
√
√
√
√
√
√
√
√
Designated person to inspect the site regularly to identify
health and hygienic problem areas
√
√
√
√
Provide training and information on health and hygiene issues
to construction site staff
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Indoor Environmental Quality (IE)
IE 1.1
Health& Hygiene
Hygiene management plan for construction / demolition site
Health &
Hygiene
Use of no / low emission cleaning products
IE 2
IE 2.1
Design with sufficient quantity of fresh air supply for the site
office and show room on site
Strategy
IE 1
IAQ Strategies
Design of commercial kitchen ventilation system within
construction site with effective oily fume and odour removal in
canteens and food business
Implement IAQ management strategies for occupied
buildings under construction
√
√
√
√
Design of lighting with optimum illuminance and glare control
for in site office.
√
√
√
√
Design with daylight and electric lighting integration in site
office and allow more daylight access to the interior
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Visual Quality & Comfort
IE 3
Lighting
Environment
Use of T5 fluorescent lamps in site office
Innovative method to further improve the indoor visual
comfort and lighting energy efficiency within construction site
Building Amenities (BA)
BA1
Safety
Provide a safe habitation and working environment in and around a construction / demolition site
BA 2.1
Major contractors for the construction / demolition projects
are accredited with ISO 9000 quality management system
Pre-requisite
Building Management
BA2
Management
Major contractors for the construction / demolition projects
are accredited with ISO 14000 environmental management
system
Major contractors for the construction / demolition projects
are accredited with OHSAS 18001 occupational health and
safety management system
Construction Stage Assessment Manual
Page 60
2006 Edition
Strategy
C – Applicable for Construction Works
D – Applicable for Demolition Works
IE 3.1
Innovative method to further improve IAQ in construction /
demolition site
Strategy
N – Applicable for Non-residential Building
R – Applicable for Residential Building
Use of no/low emitting building and furnishing materials
Strategy
IAQ
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Categories
Sub-criteria
Indicators
D
N
R
√
√
√
√
Environmental training provided for the construction workers
at the early stage of construction / demolition process
√
√
√
√
Comprehensive building records provided and conveyed to
building operator and designer with satisfaction
√
√
√
Comprehensive and effective testing and commissioning
works provided and satisfy the designer’s requirements
√
√
√
√
√
√
Environmental training provided for the major contractors’
management and supervisory staff at the early stage of
construction / demolition process
Scheduled trainings of various building facilities and services
installations provided by the contractors and suppliers to the
building operators
Innovative method to further improve the construction /
demolition management effectiveness
√
√
√
√
Formulation and implementation of an overall energy
management strategy for the construction / demolition site
√
√
√
√
Formulation and implementation of an overall energy
management strategy for the site office
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Use of automatic / manual flow control faucet and control
valve for urinal in site office
√
√
√
√
Use of low flow water closet in sale office & show room on
construction site
√
√
√
Use of automatic / manual flow control faucet and control
valve for urinal in sale office & show room on construction site
√
√
√
Collection of rainwater for reuse within construction /
demolition site
√
√
√
√
Use of other water saving device or innovative idea to reduce
water consumption in construction / demolition site
√
√
√
√
Strategy
C
Resources Use (RE)
RE 1.1
Energy Efficiency
Formulation and implementation of a lighting operation
strategy to minimise unnecessary lighting operation in the
construction / demolition site at night
Energy
Efficiency
Minimum 50% of all electrical appliances and equipment used
in sale office and show room on construction site complied
with Grade 2 or better as defined in the EMSD Energy
Efficiency Labelling Scheme for Household Appliances and
Office Equipment / Multi-function Device for site office & sales
areas
Strategy
RE1
Minimum 50% of all electrical appliances and equipment used
in site offices complied with Grade 2 or better as defined in
the EMSD Energy Efficiency Labelling Scheme for Household
Appliances and Office Equipment / Multi-function Device for
site office & sales areas
Use of renewable energy in the construction / demolition site
Modification of the design and to facilitate construction /
demolition methods or sequence that can reduce energy
consumption during construction process
RE 2.1
Water Conservation Strategies
Water
Conservation
Construction Stage Assessment Manual
Page 61
2006 Edition
Strategy
RE2
Use of low flow water closet in construction site office
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
C
D
N
R
√
√
√
√
√
√
√
√
√
√
Performance
√
√
√
Performance
√
√
Performance
√
√
Performance
Pre-requisite
Indicators
Performance
Sub-criteria
Performance
Categories
RE 3.1
Timber for Temporary Use
RE3
Reduce the use of timber for temporary use
Timber Use
RE 3.2
Minimization of Timber Use
Minimize the use of timber during construction
RE 4.1
Recycled Material Use
Reduce material consumption and reduce demands on
limited reserves of natural resources by the use of recycled
materials.
RE 4.2
Construction Waste Recycling
RE4
To recycle construction waste generated in building
construction process
Material Use
RE 4.3
Demolition Waste Recycling
To recycle demolished materials generated in building
demolition process
√
RE 4.4
Environmentally-Friendly
Materials
Use of environmentally -friendly building materials to reduce
environmental impacts.
√
Loadings (LD)
Minimise outdoor pollution and the subsequent health and environmental impacts under global
and local considerations
LD 1.1
Pollution
Air Pollution
LD1
Construction / demolition site air pollution and dust control
management plan formulated and implemented by
Contractor
Site personnel(s) are designated to carry out regular
inspections on the effectiveness of air pollution control
measures, and to carry out dust control in construction /
demolition site
Construction / demolition works that leads to significant
amount of dust generation shall be provided with proper
sheltering to minimise dust spread
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
To store dusty materials in enclosed area, to carry out dusty
material mixing works within sufficient sheltering, and to
perform dust suppression measures to minimise dust spread
√
All refrigerants used for air-conditioning systems in site office
are zero ozone depleting potential
√
√
√
√
√
√
√
√
Other innovative method to further reduce air pollution
generated from construction / demolition process
Construction Stage Assessment Manual
Page 62
2006 Edition
Strategy
√
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Categories
Sub-criteria
Indicators
C
D
N
R
Construction / demolition site water pollution management
plan formulated and implemented by Contractor
√
√
√
√
Site personnel(s) designated to carry out regular inspection
and on the effectiveness of water pollution control measures
√
√
√
√
√
√
√
√
Minimisation and treatment of wastewater from building
construction / demolition
√
√
√
√
Reuse of washing water and providing silt removal facilities
before discharged to drain
√
√
√
√
Soil and waste water from construction site toilets discharged
to government sewer
√
√
√
√
√
√
LD 1.2
Water Pollution
Separate rainwater drainage path is provided such that
contaminated waste water discharge to rainwater system can
be avoided
Noise Pollution
√
√
√
√
√
√
Designation of site personnel(s) for conducting regular
inspection on the effectiveness of noise control measures.
√
√
√
√
Reduce noise from construction activities based on EPD nonstatutory requirements
√
√
√
Other innovative method to further reduce noise pollution
generated from construction process
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Designated centralised space(s) and facilities for sorting and
storage of recyclable and non-recyclable waste specified
√
√
√
√
Provision of air tight system to store organic waste that may
leads to bad smell and hygienic problem
√
√
√
√
Innovative method to reduce waste generation or effective
waste management in construction / demolition site
√
√
√
√
√
√
√
√
√
√
√
√
Formulation and implementation of a good management
plan for the control of noise pollution at the construction /
demolition site.
LD 2.1
LD2
Waste
Management
C&D Waste Management
Contractor established and implemented a construction,
demolition & municipal waste management plan in
construction / demolition site
Designated person(s) to inspect the implementation
effectiveness on various waste management strategies
regularly
Pre-requisite
Reduce waste generation, disposal and associated environmental impacts
Strategy
√
Strategy
LD 1.3
√
Performance
Other innovative method to further reduce water pollution
generated from construction / demolition process
√
Strategy
Effective grease trap is provided for each site canteen
Strategy
Site Amenities (SA)
SA 1.1
SA1
Landscape
Tree Preservation
SA 2.1
SA2
Security
Effectiveness of tree preservation and protection measures
provide by Contractor in site (for all designated trees retain on
the original locations or other places)
Effective passive security facilities provided in construction /
demolition site
Security
Construction Stage Assessment Manual
Page 63
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Categories
Sub-criteria
Indicators
C
D
N
R
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Contractor established a site ecological value protection
strategy in the early stage of construction / demolition work
√
√
√
√
Contractor established a site cultural heritage protection
strategy in the early stage of construction / demolition work
√
√
√
√
√
√
√
√
√
√
√
√
Effective active security measures provided in construction /
demolition site
No construction materials / demolished salvageable materials
lose reported to police throughout the entire construction
period
Neighbourhood Amenities (NA)
NA 1.1
Financial contribution percentage on improving
environmental & Social related construction site performance
Environmental Economics
Environmental
Economics
Performance
NA1
Site Impacts (SI)
SI 1.1
Natural Conservation
Nature
Conservation
If biodiversity ecological value was identified on site in the
Design / Pre-design Stage and designed to conserve, sufficient
protection measures are provided by Contractor
SI 2.1
Strategy
SI 1
If habitat ecological value was identified on site in the Design
/ Pre-design Stage and designed to conserve, sufficient
protection measures are provided by Contractor
Heritage Conservation
If buildings, monuments, components and artefacts with
cultural heritage value were identified on site in the Design /
Planning Stage and designed / planned to conserve, sufficient
protective measures are implemented by Contractor
Heritage
Conservation
Contractor established preventive measures to minimize
adverse structural and environmental impacts towards the
immediate adjacent building(s) with natural heritage value
SI 3.1
Widely use of precast structure other than that specified in the
Design Stage
√
√
√
Widely use of full precast module and / or integrated services
module other than that specified in the Design Stage
√
√
√
Use of other precast components in building other than that
specified in the Design Stage
√
√
√
Use of other improved and innovative building technology to
enhance the buildability and minimise environmental impacts
√
√
√
Strategy
SI 2
Buildability
Buildability
Strategy
SI 3
Neighbourhood Impacts (NI)
Avoid environmental impacts and to minimise and control the adverse effects due to
environmental impacts during the construction / demolition process
NI 2.1
√
√
√
Designate a proper site material storage area to minimise
nuisance to the surroundings
√
√
√
√
Designate a proper hoisting facilities locations to minimise the
risk to the surroundings
√
√
√
√
Environmental Nuisance
Construction Stage Assessment Manual
Page 64
2006 Edition
Strategy
NI 2
Environmental
Interactions
√
Pre-requisite
NI 1
Environment
Impact
Assessment
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Categories
Sub-criteria
NI 3.1
Indicators
C
D
N
R
Implement other environmental nuisance control measures in
construction / demolition site
√
√
√
√
Contractor to identify the potential sensitive receivers nearby
the site due to construction / demolition activities.
√
√
√
√
√
√
√
√
√
√
√
√
Impact to communities
Impact to
communities
Establish a continuous communication channel among the
Developer / Owner, Contractor and the surrounding residents
and building users.
Contractor to designate a person to record and review the
opinion complains and advices provided by the surrounding
residents and building users, and to coordinate with the
project staff to improve the site activities.
Construction Stage Assessment Manual
Page 65
2006 Edition
Strategy
NI 3
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
APPENDIX 3A. CEPAS SCORING & WEIGHTING TABLES FOR CONSTRUCTION
STAGE (CONSTRUCTION WORKS)
Indoor Environmental Quality (IE)
Criteria
Wc
Sc
Sub-Criteria
IE1
Health &
Hygiene
0.86
IE1.1
Health & Hygiene
IE2
IAQ
0.73
IE2.1
IAQ Strategies
IE3
Lighting
Environment
0.62
IE3.1
Visual Quality & Comfort
Ssc
CONSTRUCTION (Strategy)
Building Amenities (BA)
Criteria
BA2
Wc
Management
Sc
0.78
Sub-Criteria
BA2.1
Ssc
Building Management
CONSTRUCTION (Strategy)
Resources Use (RE)
Criteria
Wc
Sc
Sub-Criteria
RE1
Energy
Efficiency
0.58
RE1.1
Energy Efficiency
RE2
Water
Conservation
0.70
RE2.1
Water Conservation
Strategies
Ssc
CONSTRUCTION (Strategy)
Construction Stage Assessment Manual
Page 66
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Loadings (LD)
Criteria
LD1
Wc
Pollution
Waste
Management
LD2
Sc
0.78
0.84
Sub-Criteria
LD1.1
Air Pollution
LD1.2
Water Pollution
LD1.3
Noise Pollution
LD2.1
C & D Waste Management
Ssc
CONSTRUCTION (Strategy)
Site Amenities (SA)
Criteria
SA2
Wc
Security
Sc
0.52
Sub-Criteria
SA2.1
Ssc
Security
CONSTRUCTION (Strategy)
Site Impacts (SI)
Criteria
Wc
Sc
Sub-Criteria
SI
Nature
Conservation
0.67
SI1.1
Nature Conservation
SI2
Heritage
Conservation
0.52
SI2.1
Heritage Conservation
SI3
Buildability
0.93
SI3.1
Buildability
Ssc
CONSTRUCTION (Strategy)
Construction Stage Assessment Manual
Page 67
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Neighbourhood Impacts (NI)
Criteria
Wc
Sc
Sub-Criteria
NI1
Impact
Assessment
NI2
Environmental
Interactions
0.65
NI2.1
Environmental Nuisance
NI3
Impacts to
Communities
0.93
NI3.1
Impacts to Communities
Ssc
Pre-requisite
CONSTRUCTION (Strategy)
Resources Use (RE)
Criteria
RE3
RE4
Wc
Timber Use
Material Use
Sc
Sub-Criteria
RE3.1
Timber for Temporary Use
RE3.2
Minimization of Timber
Use
RE4.1
Recycled Material Use
RE4.2
Construction Waste
Recycling
RE4.4
Environmentally-Friendly
Materials
Ssc
0.92
0.69
CONSTRUCTION (Performance)
Construction Stage Assessment Manual
Page 68
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Site Amenities (SA)
Criteria
SA1
Landscape
Wc
Sc
0.73
Sub-Criteria
SA1.1
Ssc
Tree Preservation
CONSTRUCTION (Performance)
Neighbourhood Amenities (NA)
Criteria
NA1
Sustainability
Economics
Wc
0.93
Sc
Sub-Criteria
NA1.1
Ssc
Sustainability
Economics
CONSTRUCTION (Performance)
Total Performance Score
Performance Weighting (Wp)
Total Strategy Score
Strategy Weighting (Ws)
Total CEPAS Score (Construction)
Construction Stage Assessment Manual
Page 69
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
APPENDIX 3B. CEPAS SCORING & WEIGHTING TABLES FOR CONSTRUCTION
STAGE (DEMOLITION WORKS)
Indoor Environmental Quality (IE)
Criteria
Wc
Sc
Sub-Criteria
IE1
Health &
Hygiene
0.86
IE1.1
Health & Hygiene
IE2
IAQ
0.73
IE2.1
IAQ Strategies
IE3
Lighting
Environment
0.62
IE3.1
Visual Quality & Comfort
Ssc
DEMOLITION (Strategy)
Building Amenities (BA)
Criteria
BA2
Wc
Management
Sc
0.78
Sub-Criteria
BA2.1
Ssc
Building Management
DEMOLITION (Strategy)
Resources Use (RE)
Criteria
Wc
Sc
Sub-Criteria
RE1
Energy
Efficiency
0.58
RE1.1
Energy Efficiency
RE2
Water
Conservation
0.70
RE2.1
Water Conservation
Strategies
Ssc
DEMOLITION (Strategy)
Construction Stage Assessment Manual
Page 70
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Loadings (LD)
Criteria
LD1
Wc
Pollution
0.78
Waste
Management
LD2
Sc
0.84
Sub-Criteria
LD1.1
Air Pollution
LD1.2
Water Pollution
LD1.3
Noise Pollution
LD2.1
C & D Waste
Management
Ssc
DEMOLITION (Strategy)
Site Amenities (SA)
Criteria
SA2
Wc
Security
Sc
0.52
Sub-Criteria
SA2.1
Ssc
Security
DEMOLITION (Strategy)
Site Impacts (SI)
Criteria
Wc
Sc
Sub-Criteria
SI1
Nature
Conservation
0.67
SI1.1
Nature Conservation
SI2
Heritage
Conservation
0.52
SI2.1
Heritage Conservation
Ssc
DEMOLITION (Strategy)
Construction Stage Assessment Manual
Page 71
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Neighbourhood Impacts (NI)
Criteria
Wc
Sc
Sub-Criteria
NI1
Environmental
Impact
Assessment
NI2
Environmental
Interactions
0.65
NI2.1
Environmental Nuisance
NI3
Impacts to
Communities
0.93
NI3.1
Impacts to Communities
Ssc
Pre-requisite
DEMOLITION (Strategy)
Resources Use (RE)
Criteria
Wc
Sc
Sub-Criteria
RE3
Timber Use
0.92
RE3.1
Timber for Temporary
Use
RE4
Material Use
0.69
RE4.3
Demolition Waste
Recycling
Ssc
DEMOLITION (Performance)
Site Amenities (SA)
Criteria
SA1
Wc
Landscape
0.73
Sc
Sub-Criteria
SA1.1
Ssc
Tree Preservation
DEMOLITION (Performance)
Construction Stage Assessment Manual
Page 72
2006 Edition
BUILDINGS DEPARTMENT
COMPREHENSIVE ENVIRONMENTAL PERFORMANCE ASSESSMENT SCHEME (CEPAS) FOR BUILDINGS
Neighbourhood Amenities (NA)
Criteria
NA1
Wc
Sustainability
Economics
0.93
Sc
Sub-Criteria
NA1.1
Ssc
Sustainability
Economics
DEMOLITION (Performance)
Total Performance Score
Performance Weighting (Wp)
Total Strategy Score
Strategy Weighting (Ws)
Total CEPAS Score (Demolition)
Construction Stage Assessment Manual
Page 73
2006 Edition