The Isover CWS 36 Cavity Wall Insulation Slab provides top-tier thermal performance for your external masonry cavity walls, ensuring both comfort and cost efficiency in your home.

Expertly engineered with a substantial 150mm thickness and crafted from up to 82% recycled glass, these slabs combine eco-friendly materials with advanced insulation technology. The inclusion of a water-repellent binder enhances durability and simplifies installation, making it a practical choice for any builder or homeowner. Lightweight and easy to handle, each slab measures 1200 x 455mm, fitting seamlessly within cavity walls for optimal coverage. With its Euroclass A1 Fire classification and BBA certification, you can be assured of maximum safety and regulatory compliance.

• Size: 150mm thickness
• Coverage: 3.28 m Pack
• Dimensions: 1200 x 455mm per slab
• Weight: Lightweight for easy handling
• Applications: External masonry cavity walls
• Thermal conductivity: 0.036 W/m.K
• Sustainability: Made from up to 82% recycled glass
• Fire Classification: Euroclass A1 Reaction to Fire
• Certification: BBA approved (certificate 18/5560)