Description
The Isover CWS 36 Cavity Wall System Batt Light Duty 75mm 8.74m² is a glass mineral wool full-fill cavity slab providing thermal performance in masonry cavity walls to help meet UK thermal building regulations. Designed to reduce heat loss through the building envelope, it offers excellent thermal performance, is non-combustible with an A1 Euroclass fire rating, and is manufactured from up to 86% recycled glass for improved sustainability.
Features & Benefits:
- Glass mineral wool full-fill cavity slab for masonry cavity walls.
- Provides excellent thermal performance, reducing heat loss through the building envelope.
- Non-combustible with an A1 Euroclass fire rating.
- Manufactured from up to 86% recycled glass.
- Zero Ozone Depletion Potential (ODP) and Global Warming Potential of less than 5.
- Short term water absorption testing proves WS<1>
- Helps to meet the requirements of UK thermal building regulations.
Applications:
- Full-fill insulation in masonry cavity walls.
- Projects targeting compliance with UK thermal building regulations.
Technical Data:
- Brand – Isover
- Range – CWS 36
- Product Type – Cavity Wall System Batt (Light Duty)
- Material – Glass Mineral Wool
- Thickness – 75mm
- Width – 455mm
- Length – 1200mm
- Dimensions (TxWxL) – 75x455x1200mm
- Items per Pack – 16
- Pack Area – 8.74m²
- Thermal Conductivity – 0.036W/mK
- Thermal Resistance – 2.05m²K/W
- Item Type – Batts
Standards & Certifications:
- Euroclass A1 (to BS EN 13501-1)
- Compliance – Class ‘O’
- Water Absorption – WS<1>
- Environmental Management System – ISO 14001:2004
- Quality Management Standard – ISO 9001:2008
- Manufactured to – BS EN 13162:2012 and BS EN 13172:2012
- BBA Approved – Yes (CertNo:90/2465) external wall solution
- CE Marked – Yes (1121-CPR-BA0053) to BS EN 13162:2012 and BS EN 13172:2012
- Designation Code – MW EN13162 T4 WS
- BRE Global Green Guide – A+ rating (generic specification reference 815320002)
Choose the Isover CWS 36 Cavity Wall System Batt Light Duty 75mm 8.74m² for high-performance full-fill cavity wall insulation with A1 non-combustible fire rating and strong sustainability credentials, available now online or at our London shops.






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