The Isover CWS 36 Cavity Wall Insulation Slab (85mm - 6.55 m Pack) delivers outstanding thermal insulation for external masonry cavity walls, ensuring your building is energy-efficient and comfortable year-round.

Expertly crafted from up to 82% recycled glass, these slabs not only contribute to sustainability but also feature a water-repellent binder for enhanced durability and easy installation. With a certified thermal conductivity of 0.036 W/m.K, they efficiently reduce heat loss, lowering energy costs. Boasting BBA certification and a Euroclass A1 Fire classification, this insulation solution offers unparalleled safety, making it an ideal choice for eco-conscious builders seeking to improve building performance with reliable, fire-safe materials.

• Size: 85mm thickness
• Coverage: 6.55 m Pack
• Dimensions: 1200 x 455mm per slab
• Applications: External masonry cavity walls
• Thermal conductivity: 0.036 W/m.K
• Sustainability: Made from up to 82% recycled glass
• Fire Classification: Euroclass A1 (EN 13501-1)
• Certification: BBA approved - certificate 18/5560
• Water repellent for added durability