50mm Celotex CW4050 - Rigid PIR Cavity Insulation Board (pack of 11) CW4000
Guide Price
50mm Celotex CW4050 - Rigid PIR Cavity Insulation Board (pack of 11) CW4000
Guide Price: £72.03 (£86.44 inc VAT)
Price per m2: £12.13/m2 (£14.55 inc VAT)
10 or more £70.85 (£85.02 inc VAT)
15 or more £69.69 (£83.63 inc VAT)
20 or more £67.89 (£81.47 inc VAT)
- Product Code: A1-159
- Delivery Time: 1 - 5 working days
- Brand: Celotex (Tech. support: 01473820850)
- Model: 1200mm x 450mm - 5.94m2
- Weight: 9.36kg
Our ratings on 16-07-2026:
4.8 out of 5
50mm Celotex CW4050 - Rigid PIR Cavity Insulation Board (pack of 11) CW4000
Width: 450mm
Length: 1200mm
Density: 31.5kg/m3
Weight/m2: 1.58kg
Weight: 9.36kg
Thermal Conductivity: 0.023W/mK
R-Value: 2.25m2K/W
Compressive Strength: 120kPa
50mm 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
Celotex-CW4000-Product-Datasheet.pdf
Brand: Celotex
Model: 1200mm x 450mm - 10.8m
Delivery Time: Discontinued
25mm 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..
Guide Price
Brand: Celotex
Model: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
50mm Celotex GA4050 is a multi-purpose insulation board that provides a solution to overcome localized thermal bridges. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate (PIR) using a perfect mix of certain blowing agents which have zero ozone depl..
Guide Price: £27.76
£33.31 inc VAT
Brand: Celotex
Model: 1200mm x 450mm - 3.24m2
Delivery Time: Discontinued
80mm 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..
Guide Price
Brand: Celotex
Model: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4025 is targeted at cut-to-fit applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. TB4012 is also appropriate for use in floors and walls. With low emissivity foil facings, TB4012 is manufac..
Guide Price: £19.33
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Guide Price
Brand: Celotex
Model: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4020 is targeted at cut-to-fit applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. TB4012 is also appropriate for use in floors and walls. With low emissivity foil facings, TB4012 is manufac..
Guide Price: £54.02
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Brand: Celotex
Model: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
100mm Celotex GA4100 is a multi-purpose insulation board that provides a solution to overcome localized thermal bridges. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate (PIR) using a perfect mix of certain blowing agents which have zero ozone dep..
Guide Price: £46.18
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