40mm Celotex CW4040 - Rigid PIR Cavity Insulation Board (pack of 14) CW4000
Guide Price
40mm Celotex CW4040 - Rigid PIR Cavity Insulation Board (pack of 14) CW4000
Guide Price: £70.53 (£84.64 inc VAT)
Price per m2: £9.33/m2 (£11.20 inc VAT)
- Product Code: A1-158
- Delivery Time: 1 - 5 working days
- Brand: Celotex (Tech. support: 01473820850)
- Model and Size: 1200mm x 450mm - 7.56m2
- Weight: 9.52kg
Our ratings on 21-11-2025:
4.8 out of 5
40mm Celotex CW4040 - Rigid PIR Cavity Insulation Board (pack of 14) CW4000
Width: 450mm
Length: 1200mm
Pack Coverage: 7.56m2
Density: 31.5kg/m3
Weight/m2: 1.26kg
Weight: 9.52kg
Thermal Conductivity: 0.023W/mK
R-Value: 1.8m2K/W
Compressive Strength: 120kPa
40mm Celotex CW4000 is an insulation board aimed specifically at partial fill cavity wall applications. It comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK and low emissivity aluminium foil facings on both sides. CW4000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP).
Note: Would be known as CW3000 from January 2018.
APPLICATION
Celotex CW4000 is specifically for use in partial-fill cavity wall applications.
CHARACTERISTICS
- Is easy to fit between wall ties using cavity tie clips for retention
- Comes in thicknesses ranging from 25mm-100mm
- Comes in conveniently sized boards for installation between cavity wall ties
- Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces
- Has excellent dimensional stability
- Provides reliable long term energy savings for buildings
CERTIFICATION
- The insulation component of Celotex CW4000 is A+ rated when compared to the BRE Green Guide 2008
- Celotex CW4000 is CFC/HCFC free with zero ozone depletion potential (ODP) and low global warming potential (GWP)
- Celotex CW4000 received CE marking compliance to BS EN 13165:2001
- The board is manufactured in accordance with quality management systems with BS EN ISO 9001:2000 by Celotex Limited
Guide Price
Brand: Unilin (prev. Xtratherm)
Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
40mm Unilin Thin-r XT/PR-UF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XT/PR-UF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/PR-UF is CFC & HCFC free and is manufactured under the high..
Guide Price: £20.83
£25.00 inc VAT
Celotex-CW4000-Product-Datasheet.pdf
Brand: Celotex
Model and Size: 450x1200mm - 51.84m2
Delivery Time: 3 - 5 days
Celotex CG5100 is especially designed for partial fill cavity wall insulation, offering great thermal performance due to substantial R and U values, with decreased board thickness and lower emissivity values due to the aluminum foil facings on both sides of the PIR core. This set of products pr..
Brand: Celotex
Model and Size: TD4000- 2400 x 1200
Delivery Time: 1 - 5 working days
Celotex TD4000 comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK, and low emissivity aluminium foil facings on both sides bonded to a layer of 5.5mm WBP exterior grade plywood.APPLICATION
Celotex TD4000 is purpose designed for use in light traffic ..
Guide Price
Brand: Celotex
Model and Size: Celotex GS5050 - 51.84m2
Delivery Time: 1 - 5 working days
50mm Celotex GS5050 PIR Insulation Board with 9.5mm Plasterboard - Mechanical Fix
Board dimensions: 1200mm x 2400mm
Thickness: 50mm + 9.5mm
λ Value (w/mK): 0.021
R-value (m²K/W): 2.40
Weight (kg/m²): 8.00
Compressive strength (kPa) = ≥ 120
Celot..
Guide Price: £1,696.93
£2,036.32 inc VAT
Brand: Celotex
Model and Size: 1200mm x 450mm - 2.70m2
Delivery Time: 1 - 5 working days
90mm Celotex CW4000 is an insulation board aimed specifically at partial fill cavity wall applications. It comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK and low emissivity aluminium foil facings on both sides. CW4000 is manufactured from rigi..
Brand: Celotex
Model and Size: 1200 x 450mm - 51.84m2
Delivery Time: Out Of Stock
97mm Celotex CF5000 is specifically designed for use within full fill cavity wall applications. It is in compliance to UK Building Regulations by achieving a U-value of 0.18 W/m 2 K, maximising thermal performance without widening the cavity. BBA certified, Celotex CF5000 features a mechanically eng..
Brand: Celotex
Model and Size: FF4000 1200x2400 - 69.12m2
Delivery Time: 3 - 5 days
100mm Celotex FF4000 Underfloor Heating Board (pack of 12)
Size: 1200mm x 2400mm
Area per pack: 34.56m2
Thermal conductivity: 0.022 W/Mk
R-Value: 4.50m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 3.41kg/m2
..
Related Products
Brand: ZVM
Model and Size: 50mm
Delivery Time: 1 - 2 days
50mm Aluminium Self Adhesive Tape is a high performance sealant tape for foli faced insulation. Adhesive/sealant applied to one side of an aluminised ..
£5.59
£6.71 inc VAT