Supermarket Insulation Specification
S1 – General
S1.01 Scope
All cold and chilled water pipework shall be insulated to prevent condensation and energy losses. All airconditioning and refrigeration pipework shall be insulated to prevent condensation and energy losses. All
low and medium temperature heating pipework, domestic hot water pipework and solar hot water pipework
shall be insulated to prevent energy losses. All valves, fittings, flanges and associated equipment shall be
insulated to the same standards as the linear pipe runs.
Where services have the potential to generate or carry nuisance mechanical noise, acoustic insulation,
including sound absorption and anti-vibration, shall be applied.
S1.02 References
The materials, components and completed installations shall conform to applicable Standards current at the
time of tendering.
Relevant standards may include:
BS 353
BS 476
BS 874
BS 5970
EN ISO 8497
EN 12086
EN 12667
EN ISO 846
EN ISO 12241
EN ISO 14304
Glossary of terms relating to thermal insulation.
Fire Tests on Building Materials and Structures.
Methods of determining thermal properties, with definitions of thermal insulating
terms.
Thermal insulation of pipework and equipment in the temperature range of -100°C
to +870°C
Determination of steady-state thermal transmission properties of thermal insulation
for circular pipes
Thermal insulating products for building applications. Determination of water vapour
transmission properties
Determination of thermal resistance by means of guarded hot plate and heat flow
meter methods. Products of high and medium thermal resistance
Evaluation of the action of microorganisms
Thermal insulation for building equipment and industrial installations -- Calculation
rules
Thermal insulation products for building equipment and industrial installations.
Factory made flexible elastomeric foam (FEF) products. Specification
S1.03 Services to be Insulated
Cold water pipework
Chilled water pipework
Air-conditioning pipework
Refrigeration pipework
Low temperature heating pipework
Medium temperature heating pipework
Domestic hot water pipework
Solar hot water pipework
Air-conditioning ductwork
S1.04 Pipe Clearances
Shall be sufficient to allow for the full thickness of insulation to be applied around all pipework. The
mechanical contractor shall be responsible for ensuring this detail.
S1.05 Pipe Clamps
Shall only be applied around high density load bearing sections at least matching the thermal performance of
the thickness of insulation applied to linear pipe runs. The mechanical contractor shall be responsible for
ensuring this detail.
S2 Materials
S2.01 General
All insulation materials shall be:
Formaldehyde free.
© Kaimann GmbH · Brideoak Street · Oldham · OL4 2HB · +44 (0)161 627 3289 · [email protected] · Status: 30. June 2012
Shown to inhibit the growth of mould.
Installed to the manufacturers recommendations. In particular all insulation shall be fully vapour sealed
using an approved adhesive or mastic around all pipe supports, clamps, valves and flanges.
Class O fire rated under BS 476 Parts 6 & 7 when used indoors.
Either inherently UV resistant or otherwise treated with compatible UV resistant paint or coatings when used
on pipework outdoors.
Provided with a compatible weather & UV resistant finish appropriate to the environment when used on
pipework outdoors which is likely to experience damage.
Manufactured in accordance with a fully certified EN ISO 9001 quality management system.
S3 – Thermal Insulation
S3.01 Insulation Specification
Materials shall be as described:
Kaiflex ST Class O:
Flexible Nitrile rubber insulation temperature resistant up to 100°C with a closed cell structure and a built in
vapour barrier. The material shall exhibit a Class 1 surface spread of flame rating when tested in accordance
with BS 476 Part 7 and a Class 0 fire rating when tested in accordance BS 476 Part 6.
The material shall be dust and fibre free and incorporate an anti-microbial additive to prevent mould growth.
The thermal conductivity shall be no greater than 0.034 W/(m·K) at 0°C and 0.038 W/(m·K) at 40°C when
tested in accordance with EN ISO 8497 or EN 12667. Water vapour transmission shall be no less than
10,000 when tested in accordance with EN 12086.
Resistance to bacterial and mould growth shall be no less than Class 1 when tested in accordance with EN
ISO 846.
Tube material shall be supplied in 2 m lengths or 15 m long coils. Sheets shall be supplied in 1 m
continuous rolls. The material shall be black in colour.
Kaiflex TC:
Flexible Nitrile rubber insulation temperature resistant up to 80°C with a closed cell structure and a built in
vapour barrier. The material shall exhibit a Class 1 surface spread of flame rating when tested in accordance
with BS 476 Part 7 and a Class 0 fire rating when tested in accordance BS 476 Part 6.
The material shall be dust and fibre free and incorporate an anti-microbial additive to prevent mould growth.
The thermal conductivity shall be no greater than 0.034 W/(m·K) at 0°C and 0.038 W/(m·K) at 40°C when
tested in accordance with EN ISO 8497 or EN 12667. Water vapour transmission shall be no less than
10,000 when tested in accordance with EN 12086.
Resistance to bacterial and mould growth shall be no less than Class 1 when tested in accordance with EN
ISO 846.
The material shall be provided with a black or white PVC film pre-applied. The PVC film shall be UV
resistant and waterproof.
Tube material shall be supplied in 2 m lengths. Sheets shall be supplied as 2 x 0.5 m flat sheet. The
material shall be black in colour with either a black or white finish.
Kaiflex RT-ST
High density load bearing PIR pipe sections with a Nitrile rubber facing to provide a full water vapour seal
between the pipe support and the adjoining insulation.
© Kaimann GmbH · Brideoak Street · Oldham · OL4 2HB · +44 (0)161 627 3289 · [email protected] · Status: 30. June 2012
S3.02 Technical Values
Material
Kaiflex ST
Class O
Kaiflex TC
Temp
Range
-196ºC to
+105ºC
-10ºC to
+80ºC
“λ” Value
W/mK at
mean temp
0.034 @ 0ºC
0.036 @ 20ºC
0.034 @ 0ºC
0.036 @ 20ºC
ODP
Rating
GWP
Rating
Fire
Class
Typical material
density kg/m3
0
0
Class O
50-55
0
0
Class O
50-55
S3.03 Material Selection
Shall be:
Internal
External
Concealed
Exposed
Concealed
Exposed
Domestic Hot Water
Pipe
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
Cold Water Pipe
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
Chilled Water Pipe
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
Low Temperature
Heating Pipe
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
Medium Temperature
Heating Pipe
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
Split Air-Conditioning
Pipe
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
Ductwork
Kaiflex ST Class O
Kaiflex ST Class O*
Kaiflex TC
Kaiflex TC
*See coverings selection for acceptable finishes
S3.04 Material Thickness
For each service the thickness of insulation applied shall not be less than that defined in the tables below.
The following thickness’s shall be taken to represent reasonable provision for the control of energy loss,
prevention of pipe freezing and the prevention of surface condensation.
S3.04.01 Domestic Hot Water
Pipe O.D
Kaiflex ST
Class O
Kaiflex
TC
mm
mm
mm
10
13
13
12
19
19
15
19
19
22
25
25
28
25
25
35
25
25
42
25
25
54
25
25
67
25
25
76.1
25
25
88.9
25
25
Insulation Thickness
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S3.04.02 Cold Water
Pipe O.D
Kaiflex ST
Class O
Kaiflex
TC
Insulation Thickness
mm
mm
mm
10
25*
25*
12
25*
25*
15
25*
25*
22
19
19
28
9
9
35
9
9
42
9
9
54
9
9
67
9
9
76.1
9
9
88.9
9
9
*Thickness not sufficient to provide 12 hours of protection against freezing at -6°C. Insulation should be
used in combination with trace heating or other frost protection measures.
S3.04.03 Chilled Water
5°C Line Temperature
Pipe O.D
Kaiflex ST
Class O
Kaiflex
TC
Insulation Thickness
mm
mm
mm
21.3
9
9
26.9
13
13
33.7
13
13
42.4
13
13
48.3
13
13
60.3
13
13
76.1
13
13
88.9
13
13
114.3
13
13
273
19
19
Pipe O.D
Kaiflex ST
Class O
Kaiflex
TC
mm
mm
mm
21.3
13
13
26.9
13
13
33.7
13
13
42.4
19
19
48.3
19
19
60.3
19
19
76.1
19
19
88.9
19
19
114.3
19
19
0°C Line Temperature
Insulation Thickness
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273
19
19
Kaiflex ST
Class O
Kaiflex
TC
S3.04.04 Low Temperature Heating
Pipe O.D
Insulation Thickness
mm
mm
mm
21.3
19
19
26.9
19
19
33.7
19
19
42.4
19
19
48.3
19
19
60.3
19
19
76.1
19
19
88.9
19
19
114.3
19
19
273
19
19
Kaiflex ST
Class O
Kaiflex
TC
S3.04.05 Medium Temperature Heating
Pipe O.D
Insulation Thickness
mm
mm
mm
21.3
25
25
26.9
25
25
33.7
25
25
42.4
25
25
48.3
25
25
60.3
25
25
76.1
25
25
88.9
25
25
114.3
25
25
273
25
25
Pipe O.D
Kaiflex ST
Class O
Kaiflex
TC
S3.04.06 Split Air-Conditioning
Insulation Thickness
mm
mm
mm
10
13
13
12
13
13
15
13
13
22
13
13
28
13
13
35
13
19
42
19
19
54
19
19
67
19
19
76.1
19
19
© Kaimann GmbH · Brideoak Street · Oldham · OL4 2HB · +44 (0)161 627 3289 · [email protected] · Status: 30. June 2012
88.9
19
19
S3.04.08 Air-Conditioning Ductwork
Kaiflex ST Class O
Emissivity: 0.05
Emissivity: 0.9
Insulation Thickness
mm
mm
19
26
S4 - Protective Coverings
S4.01 – Covering Specification
Materials shall be as described:
Kaiflex TC Film:
UV resistant PVC film. The colour shall be either white or black.
All seams and joints should be covered using a matching 25 or 50 mm wide self-adhesive tape.
Application should be at ambient temperatures between 10°C and 30°C and a maximum relative humidity of
75%. The Kaiflex TC surface should be free from all dust, oil, grease and other contaminants before
applying Kaiflex TC self-adhesive tape.
S4.02 – Covering Selection
Shall be:
For Kaiflex ST Class O:
Internal
External
Concealed
Exposed
Concealed
Exposed
Domestic Hot Water
Pipe
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
Cold Water Pipe
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
Chilled Water Pipe
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
Low Temperature
Heating Pipe
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
Medium Temperature
Heating Pipe
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
Split Air-Conditioning
Pipe
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
Ductwork
None required
None required
or Kaiflex TC
Kaiflex TC
Kaiflex TC
S5 – Additional Details
S5.01 – Water Vapour Barriers
Shall be built into the insulation material itself wherever possible. The water vapour resistance factor of the
insulation shall be no less than 10,000 for Kaiflex ST Class O and no less than 4,000 for Kaiflex EPDM.
Along all insulation seams and joints Kaiflex Adhesive shall be applied to form a water vapour tight seal
between two pieces of Kaiflex. Every 2 m and wherever insulation terminates Kaiflex shall be fixed directly
to the pipe using Kaiflex Adhesive to form a water vapour tight seal.
S5.02 – Insulation of Pipe Supports
Wherever possible the mechanical contractor shall ensure that all pipe clamps are installed around high
density load bearing insulation sections at least matching the thermal performance of the insulation on all
linear pipe runs. It is the responsibility of the insulation contractor to ensure that the water vapour barrier is
continuous around this load bearing section.
© Kaimann GmbH · Brideoak Street · Oldham · OL4 2HB · +44 (0)161 627 3289 · [email protected] · Status: 30. June 2012
Where the mechanical contractor has installed pipe clamps directly around the pipe the insulation contractor
shall note this and, if appropriate, wrap insulation of at least the same thickness as used on adjoining linear
pipe runs around the pipe clamp. It is the responsibility of the insulation contractor to ensure that adhesive
has been applied to form a water vapour tight seal at this point.
S5.03 – Insulated Valve and Flange Cover Boxes
Shall be manufactured directly from Kaiflex sheet of at least the same thickness as used on linear pipe runs
following the manufacturers recommendations. The covering shall match that used on the linear pipe runs.
Where possible contractors shall apply velcro strips to the valve or flange box seams.
S5.04 – Fire Resistant Walls
At points where pipework passes through fire resistant walls the fire resistance of the wall shall be
maintained.
The mechanical contractor shall be responsible for ensuring this detail and obtaining from the manufacturer
all relevant test certificates.
© Kaimann GmbH · Brideoak Street · Oldham · OL4 2HB · +44 (0)161 627 3289 · [email protected] · Status: 30. June 2012