50mm Isover Cavity Wall Slab (CWS) 36 delivers excellent thermal performance for external masonry cavity walls. These glass mineral wool slabs feature a water-repellent binder and measure 455mm wide to align with standard wall tie spacing, ensuring reliable installation and superior insulation properties.

Product specification

• Model: 50mm Isover Cavity Wall Insulation
• Thickness: 50mm
• Width: 455mm
• Length: 1200mm
• Pack Quantity: 20
• Pack Coverage: 10.92m2
• Density: 24kg/m3
• Weight/m2: 1.2kg
• Weight: 13.1kg
• Thermal Conductivity: 0.036W/mK
• R-Value: 1.35m2K/W
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Type: Glass mineral wool slab
• Application: External masonry cavity walls
• Brand: Isover

Product Features

1. 1200 x 455mm mineral wool insulation slab
2. Manufactured from up to 82% recycled glass
3. Manufactured with a water repellent binder
4. BBA approved – certificate 18/5560

Product Benefits

• Thermal Performance: Achieving a thermal conductivity rating of 0.036 W/m.K, this slab effectively minimises heat transfer through the building envelope, delivering significant energy savings.
• Sustainability: Created using up to 82% recycled glass and produced in facilities powered entirely by renewable energy sources.
• BBA Certified: This product holds BBA certification for both full fill and partial fill masonry cavity wall applications when properly installed and maintained according to certification requirements.
• Fire Classification: Meets Euroclass A1 Reaction to Fire standards as defined in EN 13501-1.
• Easy to Install: The 455mm width aligns perfectly with standard wall tie spacing, enabling quick and efficient installation without the requirement for retaining discs in full cavity applications.

Key Considerations

When installing 50mm Isover Cavity Wall Insulation, verify compliance with all applicable building regulations, national standards, and local requirements for your specific project. Pay particular attention to fire safety regulations and any height-related 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.

More Information on 50mm Isover Cavity Wall Slab CWS 36

• Manufaturer Link: 50mm isover cws 36
• Browse our full range of Isover Insulation products and refine your selection by thickness or coverage using the filters on the left. For expert advice on product suitability, competitive bulk quotations, or further assistance, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK Isover Insulation Prices.