75mm Celotex CW4075 - Rigid PIR Cavity Insulation Board (pack of 8) CW4000

75mm Celotex CW4075 - Rigid PIR Cavity Insulation Board (pack of 8) CW4000
Price: £63.59 (£76.31 inc VAT)
Price per m2: £14.72/m2 (£17.66 inc VAT)
5 or more £62.55 (£75.06 inc VAT)
10 or more £61.51 (£73.81 inc VAT)
20 or more £59.94 (£71.93 inc VAT)
- Product Code: A1-164
- Delivery Time: 1 - 5 working days
- Brand: Celotex (Tech. support: 01473820850)
- Model and Size: 1200mm x 450mm - 4.32m2
- Weight: 10.20kg
Our ratings on 01-08-2025:

4.8 out of 5
75mm Celotex CW4075 - Rigid PIR Cavity Insulation Board (pack of 8) CW4000
Width: 450mm
Length: 1200mm
Pack Coverage: 4.32m2
Density: 31.5kg/m3
Weight/m2: 2.36kg
Weight: 10.2kg
Thermal Conductivity: 0.023W/mK
R-Value: 3.4m2K/W
Compressive Strength: 120kPa
75mm 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
Brand: Celotex
Model and Size: 1200mm x 450mm - 3.24m2
Delivery Time: 1 - 5 working days
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..
Brand: Celotex
Model and Size: 1200 x 450mm - 4.86m2 55mm
Delivery Time: 1 - 5 working days
55mm 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 pol..
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1 - 5 working days
77.5mm Celotex PL4065 is a high performance thermal insulation board where the 65mm PIR insulation is bonded to 12.5mm tapered edge plasterboard. PL4000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low globa..
Guide Price: £81.40
£97.68 inc VAT
Brand: Celotex
Model and Size: 1200x600mm - 43.20m2
Delivery Time: Out Of Stock
120mm Celotex Crown-Up is a brand new product for use in flat roof systems. Representing the next phase of Celotex innovation, Crown-Up is a high performance rigid polyisocyanurate (PIR) insulation which delivers increased dimensional stability and added robustness in a built-up flat roofing sy..
Guide Price: £1,548.09
£1,857.71 inc VAT
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 2 - 3 working days
Celotex PL4025 is a high performance thermal insulation board where the 25mm PIR insulation is bonded to 12.5mm tapered edge plasterboard. PL4000 range is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global..
£48.24
£57.89 inc VAT
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4012 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..