Knauf DriTherm 37 Cavity Wall Insulation Slab 75mm (4.37m Pack)

Description

DriTherm 37 Cavity Slabs are high-performance glass mineral wool insulation products designed specifically for use in full-fill masonry cavity walls. Unfaced, odourless, rot-proof, and non-hygroscopic, these slabs are water repellent and require no retaining discs designed to friction-fit between standard wall ties.

Lightweight and easy to handle, they offer superior thermal performance while simplifying installation. Their structure allows them to knit together tightly, adapting to minor irregularities in the cavity, eliminating air gaps, and optimising overall performance.

Thanks to Knauf Insulations ECOSE Technology using a bio-based binder, the slabs do not support vermin or microbial growth and do not transmit moisture by capillary action. These slabs are also designed to prevent moisture transmission across the cavity or into the inner leaf, even from below the damp-proof course, as verified by BBA testing.

Features & Benefits

• Pack coverage: 4.37m (8 slabs per pack)
• Made from glass mineral wool with ECOSE? Technology
• Thermal conductivity: 0.037 W/mK
• R-Value: 2.0 mK/W
• Water vapour resistivity: 5.00 MNs/gm
• Euroclass A1 fire classification to BS EN 13501-1 (non-combustible)
• Suitable for full-fill cavity walls in all UK exposure zones
• BBA certified (Certificate No. 95/3212)
• Compatible with buildings up to 12m in height (standard) and up to 25m (with conditions met)
• DECLARE Red List Free free from harmful chemicals listed on the Living Building Challenge Red List
• Supplied in recyclable LDPE polythene packaging for short-term protection
• Low environmental impact A+ Green Guide Rating

Standards & Certification

• Reaction to Fire: Euroclass A1 to BS EN 13501-1
• CE Marked: BS EN 13162
• Environmental Declarations: EN 15804 (EPD compliant)
• TV Nord Certified:
  • BS EN 13162 Thermal Insulation Products
  • ISO 9001 Quality Management
  • ISO 14001 Environmental Management
  • ISO 50001 Energy Management

This product combines high insulation performance with sustainability and ease of use, making it ideal for modern, efficient building construction.