60mm Celotex CW4000 Cavity PIR Cavity Insulation Board is a user-friendly polyisocyanurate (PIR) insulation board known for its superior thermal performance and low emissivity foil facing. It comes in various thicknesses ranging from 40mm to 100mm, making it ideal for use in partial fill cavity wall applications.
Celotex has discontinued the following thicknesses: 25mm, 55mm, 65mm, 70mm, 80mm and 90mm. Click to request a quotation and we will recommended an equivalent product.
Euroclass F Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission.
60mm Celotex CW4000 offers excellent thermal performance with a thermal conductivity of 0.022 W/m.K, reducing the necessary insulation thickness to achieve target U-values.
The low emissivity foil facing enhances thermal performance in sealed cavity air spaces, improving the achievable U-value.
These 60mm celotex cavity insulation boards are lightweight and rigid, making transportation, handling, and fitting straightforward. They are designed to fit standard wall tie spacing for hassle-free installation.
60mm Celotex CW4000 partial fill is BBA certified, confirming its suitability for defined partial fill cavity wall applications when installed, used, and maintained as specified in the certificate. Please refer to the BBA certification page for comprehensive details and restrictions.
When using 60mm Celotex pir partial fill insulation, ensure that the product complies with all relevant national Building Regulations and guidance, as well as local, national, and other applicable standards for your construction or application. This includes adhering to fire safety requirements and applicable height restrictions.












