50mm Celotex CW4050 - Rigid PIR Cavity Insulation Board (pack of 11) CW4000

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.

Celotex CW4000 is specifically for use in partial-fill cavity wall applications.

• 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

• 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