Knauf Dritherm 34 Wall Insulation 455mm x 1200mm

Knauf DriTherm® Cavity Slab 34 is a water-repellent glass mineral wool insulation slab designed for full-fill external masonry cavity walls. Offering a thermal conductivity of 0.034 W/m·K, it delivers reliable thermal performance while maintaining a simple, effective installation process.

Non-combustible with the highest Euroclass A1 fire rating, DriTherm® 34 provides long-term safety and performance. Manufactured with ECOSE® Technology, a bio-based, sustainable binder, it is free from harmful chemicals, ozone-depleting substances, and greenhouse gases.

Thanks to its flexible design, the slabs adapt to minor substrate imperfections and knit together to eliminate air gaps, ensuring consistent insulation performance over the lifetime of the building. Easy to friction fit between wall ties, DriTherm® 34 removes the need for additional fixings such as retaining discs or jointing tape, making installation faster and more efficient.

Key Benefits
•    Excellent thermal performance (λ = 0.034 W/m·K)
•    Non-combustible – Euroclass A1 fire rating
•    BBA approved for use in all exposure zones, including very severe areas
•    Water-repellent to resist moisture ingress
•    Knits together to minimise air gaps and maintain performance
•    Friction fits between wall ties – no retaining discs required
•    Manufactured with ECOSE® Technology for a sustainable, low-impact solution
•    Long-lasting performance over the lifetime of the building

Product Specifications
•    Length: 1200mm
•    Width: 455mm
•    Material: Glass mineral wool
•    Thermal conductivity: 0.034 W/m·K
•    Fire rating: Euroclass A1
•    Certification: BBA approved