Rather place your order over the phone? Trade customers can call us directly to place new orders on 0208 2641 144. Lines open 8am - 10pm 7 days/week.
The Unilin CavityTherm Full Fill Insulation PIR Board 1200 x 450 x 125mm is an advanced thermal insulation solution designed to achieve superior energy efficiency in cavity wall applications. Constructed from high-performance polyisocyanurate (PIR) foam, this board offers excellent thermal resistance while maintaining a slim profile for easy installation. The Unilin CavityTherm board features precision-engineered rebated edges to minimise thermal bridging and ensure a continuous insulation layer across walls. Its rigid structure provides durability and long-term performance, making it suitable for both new build and retrofit projects. Reliable and effective, this insulation board enhances the overall comfort and energy savings of any property.