Knauf DriTherm 37 150 mm Cavity Slab (4.37 m²)

This Knauf DriTherm 37 150 mm Cavity Slab is a high‑performance insulation slab designed for full‑fill installation in external masonry cavity walls. Manufactured from water‑repellent glass mineral wool using ECOSE® binder technology, it offers a thermal conductivity of 0.037 W/m·K and a thermal resistance of approximately 4.05 m²K/W. :contentReference[oaicite:1]{index=1}

The slabs measure 1 200 mm in length and 455 mm in width, allowing a friction‑fit installation between standard wall ties, ensuring minimal air gaps and secure fit. Certified non‑combustible (Euroclass A1) and BBA‑approved for use in exposure zones, including very severe ones, this product supports building‑regulation compliance for both residential and multi‑storey construction. :contentReference[oaicite:2]{index=2}

Specifications

Thickness: 150 mm
Thermal conductivity (λ): 0.037 W/m·K
Pack coverage: 4.37 m²
Material: Water‑repellent glass mineral wool

Key Features

• Excellent thermal performance for wide cavity wall constructions
• Water‑repellent to resist moisture ingress and maintain long‑term performance
• Non‑combustible (Euroclass A1) for the highest fire‑safety rating
• Sized to fit between wall ties without the need for retaining discs
• Manufactured using ECOSE® binder technology for lower environmental impact