This Online Learning Seminar is
available through a professional
courtesy provided by:
Waterproofing Exterior
Cementitious Wall Surfaces
Seal-Krete
306 Gandy Road
Auburndale, FL 33823
Tel: 863-967-1535
Fax: 863-965-2326
Toll-Free: 1-800-323-7357
Email: [email protected]
Web: www.seal-krete.com
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© 2004 Convenience Products. The material contained in this course was researched, assembled, and
produced by Convenience Products and remains their property. Questions or concerns about the content
of this course should be directed to the program instructor.
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Slide 1 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Exterior Cementitious Wall Surfaces
Presented By:
Mike Gilbert
Seal-Krete
306 Gandy Road
Auburndale, FL 33823
Description:
Provides an overview of the design and application of liquidapplied exterior waterproofing systems on concrete, cement
plaster, and masonry wall systems. Includes information on
preparation, tinting and staining, and product limitations.
AIA/CES Info:
Provider No. J624 – Course No. AEC025; LUs – 1.00
MCE Info:
Contact your respective governmental licensing & regulatory
agency. This program qualifies for HSW credit.
Expiration date:
September 30, 2005
This program is registered with AIA/CES for continuing professional registration. As such, it does not include content that may be deemed
or construed to be an approval or endorsement by the AIA or AEC Daily Corporation of any material or construction or any method or
manner of handling, using, distributing or dealing in any material or product. Questions related to specific materials, methods and
services should be directed to the program instructor.
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©2004
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Waterproofing Exterior Wall Surfaces
How to use this Online Learning Course
•
Read and review the material contained in this seminar.
•
Some slides may contain additional Instructor comments. To view these
comments, double-click on the
icon. Then, click on the comment window to
scroll through the text.
•
To view this presentation, use the previous/next keys on each slide or the up and
down arrow keys on your keyboard.
•
Within this course is a code word that you will be required to enter in order to
proceed with the online examination. Please be sure to write down this code
word so that you have it available for the test.
•
To receive a certificate indicating course completion, refer to the instructions at
the end of the seminar.
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For additional information and post-seminar assistance, click on any of the logos
and icons within a page or any of the links at the top of each page.
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Slide 3 of 47
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Waterproofing Exterior Wall Surfaces
Learning Objectives
Upon completing this course, you will have a better understanding of:
•
The importance of waterproofing in preventing "sick building syndrome"
•
Causes and cures for different types of moisture penetration damage
•
Characteristics and applications of liquid applied waterproofing sealers
•
How to prepare concrete, masonry, stucco, and brick for sealer application
•
The key specification issues related to surface preparation and sealer application
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Slide 4 of 47
• About the Instructor
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Waterproofing Exterior Wall Surfaces
Waterproofing & Dampproofing
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Slide 5 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing & Dampproofing
Definitions & Concepts
•
Waterproofing: Waterproofing is defined as "the formation of an impervious
barrier that is designed to prevent water from entering or escaping from various
sections of building structures." As such, waterproofing materials are designed
to withstand hydrostatic pressure and permanently prevent the passage of
water, in either liquid or vapor form.
•
Dampproofing: Dampproofing is defined as "treating a structure with material
or materials that only resist the passage of water" in the absence of hydrostatic
pressure. Dampproofing materials can be applied to either interior or exterior
substrates and are designed to resist the migration of moisture (liquid or vapor)
and ultimately preserve the substrate from the damaging effects of water.
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Slide 6 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing & Dampproofing
Water Damage
If a building is not properly sealed during the construction phase, the
damaging effects of water over time can be both costly and devastating.
Water damage is second only to fire as a cause
of building decay and deterioration!
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Slide 7 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing & Dampproofing
Effects of Water Damage
•
Corrosion of metals such as steel
reinforcing bars, steel beams, steel
lintels, metal door frames, etc.
•
Rotting of timber structures (posts,
beams, studs, etc.) and damage to
wood finishes (floors, skirting, door
frames, window frames, etc.).
•
Unsightly deterioration of the
building façade, including cracking
and blistering of paint and stucco.
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Slide 8 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing & Dampproofing
•
Electrical hazards, which may cause
short circuits of lighting, computer
equipment, and power points.
•
Dampness, mold, and poor indoor
air quality, which can lead to health
problems such as allergies, asthma,
and other respiratory illnesses.
•
Swelling of plasterboards and the
subsequent debonding of ceramic
tiles on walls and floors.
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©2004
© 2002 Enviro-CURE Services, Inc.
Effects of Water Damage Cont'd…
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Slide 9 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing & Dampproofing
Why is Waterproofing Important?
•
Health: Proper waterproofing can
reduce the incidence of health issues
and "sick building syndrome" that
can result from dampness and mold.
•
Cost: Waterproofing reduces water
damage, resulting in less costly and
time consuming repairs.
•
Aesthetics: Preventing moisture
intrusion reduces efflorescence,
cracking and peeling, and protects
the appearance of the building.
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Slide 10 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
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Slide 11 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Areas of Moisture Intrusion
The following elements of exterior wall
systems are involved in the majority of
water intrusion situations:
•
•
•
•
Parapets
Flashing
Windows
Mortar Joints
Without proper waterproofing, excess
moisture entering at these locations can
quickly penetrate the wall system.
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Slide 12 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Common Moisture Problems
Excessive moisture intrusion in exterior
cementitious walls can often result in
one or more of the following problems:
•
Blistering
•
Efflorescence
•
Chalking
Each of these potential problems can be
avoided through proper waterproofing
of exterior wall surfaces.
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Slide 13 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Blistering
•
Blistering is often caused by excess
moisture trapped in the exterior wall
behind the paint surface.
•
As this excess moisture moves toward
the exterior of the wall, it pulls the
paint away from the surface, causing
a loss of paint adhesion.
•
The resulting blisters or bubbles will
appear alone or in groups, depending
on the extent of moisture intrusion.
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Slide 14 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Blistering Cont'd…
•
Causes: Excess moisture can become trapped behind the paint surface for a
number of reasons, including painting at temperatures above 90°F, painting on
warm surfaces in direct sunlight, using oil paints on wet or damp surfaces, and
exposure to high humidity (via rain or heavy dew) before the paint dries.
•
Cures: The first step is to locate and remove the source of the excess moisture,
stop any leaks using acrylic caulking, and install adequate venting to control
future moisture levels. Next, remove all of the old paint in the blistered area
and other loose paint by scraping, sanding, or power-washing (recommended
for large areas).
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Slide 15 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Efflorescence
•
Efflorescence is a white salty deposit
that forms on masonry, as moisture
migrates through the surface.
•
If left untreated for long periods
of time, efflorescence will become
hard and crusty, and increasingly
difficult to remove.
•
Efflorescence, or mottling, can also
be a problem with mortar or plaster
used on exterior wall surfaces.
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Slide 16 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Efflorescence Cont'd…
•
Causes: Efflorescence is caused by excessive moisture in the exterior wall
and inadequate venting of interior moisture-laden areas. With concrete, it is
important to ensure that the pH level is not too high, that there is not excessive
lime in the concrete mix, and that the concrete is allowed an adequate amount
of time to cure. With masonry, excess water will dissolve any soluble salts and
appear on the surface as crystallized salts.
•
Cures: Any leaks or other sources of excess moisture must be eliminated prior
to cleaning the exterior wall surface. The efflorescence can then be removed
by scraping or wire brushing the surface. Any cracks should be filled with a
masonry patching compound and the surface should be repainted if necessary.
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Slide 17 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Chalking
•
Chalking refers to the sometimes
excessive and heavy powdering that
can occur on painted surfaces.
•
Chalking on masonry surfaces is
often the result of inadequate
preparation of the exterior surface
prior to painting.
•
Paints will chalk naturally over time,
however premature chalking usually
indicates poor priming or thin paint.
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Slide 18 of 47
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Waterproofing Exterior Wall Surfaces
Moisture Intrusion
Chalking Cont'd…
•
Causes: Chalking can occur due to the natural weathering of oil based paints,
the use of paints with excessive clay instead of titanium dioxide, the use of
interior paints on exterior surfaces, spreading paint too thinly, inadequate
surface preparation, or selecting the wrong paint product for the wall surface.
Rain can cause chalking on one wall surface to run and potentially stain any
masonry below.
•
Cures: The first step is to remove all of the chalk dust from the wall surface
using either a stiff bristle brush or wire brush (for masonry walls) and rinse
thoroughly with a high-pressure hose or power-washer. If any chalk residue
remains on the wall surface, apply one flood coat of waterproofing sealer to
bind up the remaining chalk. This sealer provides a stable surface for the new
paint to adhere to, thus lengthening the life of the paint surface.
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Slide 19 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
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Slide 20 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Introduction
Waterproofing materials can generally be divided into two categories: sheet
membranes and liquid membranes. Liquid membranes have the advantage of
providing substrates with seamless protection from moisture intrusion.
Sheet Membranes
Liquid Membranes
Metal Sheets (Lead, Copper)
Butyl Rubber Sheeting
Bitumen/Polyethylene Sheets
PVC Membranes
Neoprene Rubber
Chlorosulphated Rubber
Torch-On Sheeting
EPDM Membranes
Mastic Asphalt
Modified Polyurethane Tar
Modified Tar Epoxies
Moisture Curing Polyurethane
Water-Based Epoxies
Modified Bitumen Latex
Solvent-Based Silanes
Water-Based Acrylics
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Slide 21 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Waterproofing Sheet Membranes
In order to function as an effective barrier to water penetration, waterproofing
membranes must possess several important characteristics:
•
A waterproofing membrane must be impermeable in order to prevent the
passage of liquid water and water vapor.
•
A waterproofing membrane must be flexible in order to accommodate any
normal movement that may occur in the building structure.
•
A waterproofing membrane should require little maintenance in order to be
suitable for applications where the membrane is installed in exposed areas.
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Slide 22 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Waterproofing Sheet Membranes Cont'd…
In order to function as an effective barrier to water penetration, waterproofing
membranes must possess several important characteristics:
•
A waterproofing membrane should be adaptable in order to accommodate
the various design details in a building and be suitable for each application.
•
A waterproofing membrane should provide a continuous film, without areas
of weakness, such as overlaps, which often result in areas of water intrusion
•
A waterproofing membrane should be strong enough and durable enough to
withstand the environmental and climatic conditions that it will be exposed to.
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Slide 23 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Waterproofing Sealers
•
Waterproofing sealers, or liquid membranes, protect vertical substrates from
water penetration, while allowing for vapor transmission. Waterproofing sealers
also provide aesthetic revitalization and prepare substrates for painting.
•
Surface applied waterproofing sealers are designed to provide a fully bonded,
continuous, seam-free, breathable and flexible transparent film with no laps or
joints over a given substrate.
•
Waterproofing sealers are typically water-based acrylics or solvent-based silanes.
Acrylic sealers are paintable, tintable, durable, and environmentally safe, with
low volatile organic compounds (VOCs) at less than 100g / liter.
•
Standard waterproofing sealers have a 10% solids content, whereas sealers used
for more porous materials, such as decorative or split-faced CMUs have a 25%
solids content, and are referred to as high-solids waterproofing sealers.
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Slide 24 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Some Common Questions
1.
Can waterproofing sealer be used on exterior wall surfaces prior to repainting?
Waterproofing sealer is an excellent primer/sealer for repainting both
residential and commercial properties. It binds chalky surfaces and can be
applied over oil and water-based paints and coatings. Waterproofing sealer can
also be added to water-based paints to improve their spread rate. One to two
pints per gallon is recommended when mixed with the topcoat of paint.
2.
Can waterproofing sealer be used on tilt-up and cast-in-place concrete?
Yes. Waterproofing sealer is an excellent choice for waterproofing tilt-up and
cast-in-place concrete. When applied according to specifications, all chemicals
and form release agents must be properly removed before application.
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Slide 25 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Some Common Questions Cont'd…
3.
Can waterproofing sealer be used to preserve historic buildings and landmarks?
Waterproofing sealer can be used to protect and preserve historic landmarks
whose bricks are crumbling due to exposure to excess moisture over the years.
The buildings should be properly cleaned and free of any efflorescence before
sealing. Fragile, loose, or missing mortar joints will require tuck pointing prior
to application of the waterproofing sealer.
4.
Can waterproofing sealer be used on porous surfaces, such as split-face block?
Due to the porosity and profile of split-face, decorative, and fluted block, a
high-solids waterproofing sealer (with at least 25% solids content) should be
used. These products are specially formulated for lightweight, low-density block.
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Slide 26 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Membranes & Sealers
Some Common Questions Cont'd…
5.
What is the moisture vapor transmission rate of a waterproofing sealer?
Moisture vapor transmission rate or perm rate is a measure of the ease with
which water vapor can diffuse or evaporate through a material. Higher perm
rates mean a material is more "breathable" and it is easier for water vapor to
pass through. Waterproofing sealers have high perm rates, allowing for vapor
transmission while still waterproofing approved substrates from the elements.
6.
What is the ratio for mixing paint with waterproofing sealer?
The ratio for mixing paint with waterproofing sealer will vary depending on
the desired aesthetic. To achieve a transparent stain, mix one part paint to four
parts sealer. For a solid color, mix one part paint to one part sealer.
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Slide 27 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
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Slide 28 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
Types of Cementitious Wall Surfaces
Cast-In-Place Concrete
Tilt-Up Concrete
Brick Masonry
Cement Plaster (Stucco)
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©2004
Fluted Concrete Block
Split Face Concrete Block
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Slide 29 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
General Surface Preparation
•
All surfaces must be sound, clean, and dry prior to application. Remove any
blistered or peeling paint, excessive chalking, efflorescence, dirt, grease, and oil.
•
Repair any cracks or surface breaks. Scrape, sandblast or pressure wash surfaces
as necessary. Power washed surfaces should be allowed to dry for 24 hours.
•
Remove dirt and mildew using a solution of one part chlorine bleach to three
parts water containing a non-ammoniated cleaner. Rinse surface thoroughly.
•
Only water-based cleaners should be used as directed by the manufacturer.
Cleaning surfaces with solvent-based or oil-based cleaners is not recommended.
Please remember the word CHALKING. You will be required to enter it in order to proceed
with the online examination.
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Slide 30 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
Concrete Preparation
•
For tilt-up and cast-in-place poured
vertical concrete, waterproofing
sealer can be applied as soon as the
forms are removed.
•
Remove any surface contaminants
(e.g. releasing agents) and remove
any previous coatings in accordance
with manufacturer's instructions.
•
Check the pH of the concrete and
test moisture emission levels prior
to rolling on waterproofing sealer.
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Slide 31 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
Masonry Preparation
•
Remove any efflorescence using a
wire brush. Remove any mildew,
dirt, oil, or previous coating. Allow
surface to dry completely.
•
Tuck point any loose, fragile or
missing mortar joints prior to
applying waterproofing sealer.
•
Low-density, decorative concrete
masonry units (e.g. split face or
fluted block) will require a highsolids waterproofing sealer.
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Slide 32 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
Stucco Preparation
•
If necessary, waterproofing sealer
can be applied to gray or colored
stucco during the curing period.
•
The waterproofing sealer will
actually aid in the curing process,
without causing colored stucco
surfaces to "bleed."
•
When the waterproofing sealer is
dry, it is important to ensure that
the surface pH is between 7 and 9
before painting.
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Slide 33 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Preparation
Surface Preparation for Coated or Sealed Surfaces
Most manufacturers require that the existing substrate be untreated, however it is
possible to apply waterproofing sealer to previously coated or sealed surfaces.
1. Remove previous sealers or coatings by power washing with high pressure, bead,
mechanical or sand blasting. Chemicals and specialty strippers may also be used
with power washers and other machinery to facilitate removal of coatings.
2. If the type of existing sealer or coating is known, contact the manufacturer
for removal recommendations. The type of substrate (concrete, brick, stucco,
CMU, etc.) will typically determine the steps necessary for coating removal.
3. Once the existing sealer or coating has been properly removed and the surface
is free of chemicals, the substrate must be allowed to dry thoroughly before
applying a new coating of waterproofing sealer.
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Slide 34 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
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Slide 35 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Application Instructions
1. Prior to applying waterproofing
sealer, ensure that all windows,
doors and other exterior surfaces
that are not to be waterproofed
are adequately covered and
protected from overspray.
2. Using a garden sprayer, airless
sprayer, brush, or roller, apply a
liberal flood coat, starting at the
top of the wall and allowing the
liquid to run down the surface a
distance of 6 to 8 inches.
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Spray On Application
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Application Instructions Cont'd…
3.
Spray applications should be
backrolled in order to force the
waterproofing sealer into the
pores, ensuring proper surface
penetration of the wall and a
uniform wet coat.
4.
Be sure to use extreme caution
when spraying on windy days
and immediately remove any
overspray from doors, windows,
and other surfaces using water.
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Roll On Application
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Slide 37 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Application Instructions Cont'd…
5.
Apply a minimum of two flood
coats, allowing a minimum of two
hours drying time between coats.
The waterproofing sealer goes on
milky white (which aids in surface
application) and dries clear.
6.
A high-solids waterproofer (with
a minimum 25% solids content)
should always be used on porous
substrates, such as low-density or
decorative concrete block.
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Split Face Block
Fluted Block
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Slide 38 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Coverage Guidelines
The following tables provide coverage guidelines for standard and
high-solids waterproofing sealers for a variety of exterior wall surfaces.
Table 1: Standard Waterproofing Sealer
Approx. Coverage
(sq. ft. / gallon)
Material
Table 2: High-Solids Waterproofing Sealer
Material
Approx. Coverage
(sq. ft. / gallon)
Concrete Block
080
Split / Fluted Block
050
Brick
125
Concrete Block
080
Stucco
150
Stucco
150
Tilt-Up Concrete
175
Tilt-Up Concrete
175
Chalky Surfaces
300
Chalky Surfaces
300
Actual coverage will vary depending on the porosity of substrate.
For second coat applications, increase coverage by 50%.
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Slide 39 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Tinting & Staining
•
When tinting a waterproofing sealer, use latex stain or paint color charts to
achieve the desired color, and always tint with universal colorants.
•
For a transparent stain, it is recommended to use up to 4 ounces of colorant per
gallon of waterproofing sealer. For a semi-transparent stain, mix one part of the
desired color of exterior acrylic latex paint with four parts of waterproofer.
•
For a solid stain that will hide the existing surface color, mix three parts of the
desired color of exterior acrylic latex paint with two parts waterproofer.
•
In each case, it is recommended that a quart or less of the product be mixed and
applied to a test area to ensure that the desired color has been obtained. Always
confirm actual proportions with the waterproofing sealer manufacturer.
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Slide 40 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Points to Remember
•
Waterproofing sealers are only suitable for vertical surfaces. Do not use on
horizontal surfaces, such as driveways, garage floors, wood decks, or roof tiles.
•
Do not use waterproof sealers on swimming pools, bird baths, or water features
and do not apply below grade or where hydrostatic pressure is likely to develop.
•
Ensure that product is kept from freezing. Do not apply if air, product or
substrate is less than 50°F, or is expected to fall below 50°F within 24 hours.
•
Do not apply waterproofing sealer if rain is forecasted within eight hours of
application. Wait at least 14 days before applying over freshly painted surfaces.
•
Waterproofing sealers do not usually stain or etch windows, but are difficult to
remove when dry. Remove dried sealer from windows with a safety razor blade.
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Slide 41 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Application
Regulatory & Environmental Requirements
Regulatory Requirements
•
•
Research all laws, requirements, and ordinances that are in place for the city,
county, and state in which structure is being built or renovated.
For instance, all waterproofing and dampproofing materials must conform to
applicable building codes for Flame Spread Rating.
Environmental Requirements
•
•
Ensure that the waterproofer specified meets all relevant and applicable
environmental requirements that are mandated by law.
Do not apply products when substrate or ambient temperatures fall above
or below the recommended range, as specified by the manufacturer.
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Slide 42 of 47
• About the Instructor
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• Seminar Discussion Forum
Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Specifications
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Slide 43 of 47
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Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Specifications
Part 1: General
•
Specifications for penetrating waterproofing sealers for vertical surfaces should
appear under Section 07191 – PENETRATING SEALER.
•
Related sections include Section 07140 – Fluid Applied Waterproofing and
Section 09900 – Paints and Coatings.
•
Specifications should reference ASTM D 1653 - Standard Test Method for Water
Vapor Transmission of Organic Coating Films: 1993 (Re-approved 1999).
•
Another related reference is ASTM E 514 - Standard Test Method for Water
Penetration and Leakage Through Masonry; 1990 (Re-approved 1996).
•
Specifications should also reference Federal Specification TT-P-0035 - Paint,
Cementitious, Powder, White and Colors (For Interior and Exterior Use).
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• About the Instructor
• About the Sponsor
• Seminar Discussion Forum
Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Specifications
Part 2: Products
•
Sealer: Clear, non-staining, waterborne acrylic-base penetrating sealer/primer,
containing low quantities of VOCs, with a 25% minimum solids content.
•
Resistance to Water Penetration: Minimum rating of Excellent, when tested
according to FS TT-P-0035, modified using 4 by 8 by 16 inch (100 by 200 by 400
mm) concrete block, at equivalent of 98 mph (158 km/h) wind speed.
•
Resistance to Water Penetration: No more than 25% dampness appearing on
back of wall specimen, when tested in accordance with ASTM E 514 for 4 hours.
•
Water Vapor Transmission: 3.6 perms (207 ng/(Pa.s.m2), maximum, when tested
in accordance with ASTM D 1653.
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• About the Instructor
• About the Sponsor
• Seminar Discussion Forum
Waterproofing Exterior Wall Surfaces
Waterproofing Sealer Specifications
Part 3: Execution
•
Preparation of Adjacent Surfaces: Protect adjacent surfaces to prevent accidental
application to surfaces not indicated to receive sealer. Remove accidental
applications from surfaces immediately, following manufacturer's instructions.
•
Preparation of Existing Surfaces: Remove loose or deteriorated materials,
including, but not limited to, scale, spalling, paint, or other coatings. Clean
with detergent-based materials, as recommended by manufacturer. Cleaning
with solvent-based or oil-based cleaners is prohibited.
•
Application: Apply sealer in accordance with manufacturer's instructions for
indicated project conditions; for multi-coat applications, allow specified curing
time between subsequent coats. Addition of materials to sealer is prohibited,
except as recommended by manufacturer.
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• About the Instructor
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• Seminar Discussion Forum
Waterproofing Exterior Wall Surfaces
Conclusion of This Program
•
AEC Daily Corporation is a Registered provider with the
AIA Continuing Education System. Credit earned upon
completion of this program will be reported to CES
Records for AIA members.
•
If you desire AIA/CES, CSI and/or state licensing
continuing education credits, please click on the button
below to commence your online examination. Upon
successful (80% or better) completion of the exam, please
print your Certificate of Completion.
•
For additional knowledge and post-seminar assistance,
please visit the Seminar Discussion Forum (click on the
link above and bookmark it in your browser).
•
If you have colleagues that might benefit from this
seminar, please let them know. Feel free to revisit the
AEC Daily web site to download additional programs
from the Online Learning Center.
©2004 Convenience Products. The material
contained in this course was researched,
assembled, and produced by Convenience
Products and remains their property.
Questions or concerns about this course
should be directed to the instructor.
Click Here To Take The Test
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