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55mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 9)

55mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 9)
  • Product Code: A1-160
  • Delivery Time: Discontinued
  • Brand: Celotex (Tech. support: 01473820850)
  • Model: 1200 x 450mm - 4.86m2 55mm
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Our ratings on 16-07-2026:
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4.8 out of 5

55mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 9)

Width: 450mm
Length: 1200mm
Pack Coverage: 4.86m2
Weight/m2: 3.11kg
Thermal Conductivity: 0.023W/mK
R-Value: 2.5m2K/W
Compressive Strength: 120kPa
Surface Spread of Flame: Class 1

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 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

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    Delivery Time: 1-3 working days
    90mm Celotex GA4090 is a versatile insulation board designed to address localized thermal bridge issues. With low emissivity foil facings, this board is constructed from durable polyisocyanurate (PIR) using a blend of eco-friendly blowing agents that have zero ozone depletion potential (zero ODP) an..
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    60mm 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..
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    Delivery Time: 1-3 working days
    70mm Celotex GA4070 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..
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    60mm Celotex GA4000 PIR Insulation Board - GA4060
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    Delivery Time: 1-3 working days
    60mm Celotex GA4060 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..
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    Delivery Time: 1-3 working days
    Celotex XR4140 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. XR4140 is also appropriate for use in floors and walls. With low emissivity foil facings, XR4140 is ma..
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    75mm Celotex CW4075 - Rigid PIR Cavity Insulation Board (pack of 8) CW4000
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    Brand: Celotex Model: 1200mm x 450mm - 4.32m2
    Delivery Time: 1 - 5 working days
    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 rigi..
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