65mm Isover Cavity Wall Slab (CWS) 36 is a high-performance glass mineral wool slab engineered for superior thermal insulation in external masonry cavity walls. These robust, flexible slabs feature a water-repellent binder and measure 455mm wide to align perfectly with standard wall tie spacing for hassle-free installation.
Product specification
- Model: 65mm Isover Cavity Wall Insulation
- Thickness: 65mm
- Width: 455mm
- Length: 1200mm
- Pack Quantity: 16
- Pack Coverage: 8.74m2
- Density: 24kg/m3
- Weight/m2: 1.56kg
- Weight: 13.63kg
- Thermal Conductivity: 0.036W/mK
- R-Value: 1.81m2K/W
- Fire Rating (Reaction to Fire): A1(Non-combustible)
- Type: Glass mineral wool slab
- Application: External masonry cavity walls
- Brand: Isover
Product Features
- 1200 x 455mm mineral wool insulation slab
- Manufactured from up to 82% recycled glass
- Manufactured with a water repellent binder
- BBA approved – certificate 18/5560
Product Benefits
- Thermal Performance: Delivering a thermal conductivity rating of 0.036 W/m.K, this slab effectively minimises heat transfer through the building envelope, helping to reduce heating expenses and improve energy efficiency.
- Sustainability: Created using up to 82% recycled glass and produced in facilities powered entirely by renewable energy sources.
- BBA Certified: This 65mm Cavity Wall Slab (CWS) 36 holds BBA certification for both full fill and partial fill masonry cavity wall installations when properly fitted and maintained in accordance with certification requirements.
- Fire Classification: Meets Euroclass A1 Reaction to Fire standards as defined in EN 13501-1.
- Easy to Install: The 455mm width aligns with standard wall tie spacing, enabling quick and straightforward installation without requiring retaining discs for full cavity fill scenarios.
Key Considerations
When installing 65mm Isover Cavity Wall Insulation, verify that the product meets all applicable national building regulations, construction standards, and local requirements for your specific project. Pay particular attention to fire safety compliance and any relevant height restrictions.
Thermal
Declared thermal conductivity of 0.036 W/m.K under EN 13162: Thermal insulation products for buildings. Factory made mineral wool (MW) products.
Fire
Euroclass A1 Reaction to Fire Insulation classification according to EN 13501-1.
Environmental
All Isover products are manufactured under Environmental Management System – ISO 14001:2015.
Recycled
Content Manufactured from up to 82% recycled glass.
Certification
- UKCA Marked to BS EN 13162.
- CE Marked to EN 13162.
- Designation code: MW-EN 13162-T4-WS.
BBA Approved
(Cert No: 18/5560) for full fill and partial fill masonry cavity wall insulation board applications when installed, used and maintained as set out in the certification. details and restrictions.
Quality
All Isover products are manufactured under Quality Management Standard – ISO 9001.
- Manufaturer Link: 65mm isover cws 36
- Browse our complete Isover Insulation range and refine by thickness or coverage using the filters on the left. For expert advice on product suitability for your build, or to request a competitive bulk quotation, contact us via phone on +4402038839057 , email sales@insulationbee or Live Chat - Lowest UK Isover Insulation Prices.