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The Knauf 75 mm DriTherm Cavity Slab 32 (3.28 m²) is a high-performance full-fill cavity wall insulation slab designed to deliver excellent thermal efficiency with a low lambda value of 0.032 W/mK. It is ideal for masonry constructions where improved wall U-values are required to meet modern energy efficiency and Building Regulation standards.
Manufactured by Knauf Insulation using water-repellent, non-combustible glass mineral wool, DriTherm Cavity Slab 32 provides reliable thermal performance while remaining breathable and resistant to moisture. The 75 mm thickness makes it suitable for standard cavity wall constructions, helping to reduce heat loss without increasing wall build-up. Supplied in packs covering 3.28 square metres, the slabs are lightweight, easy to handle and quick to install on site.
Knauf DriTherm full-fill cavity wall insulation
Lambda value: 0.032 W/mK for high thermal performance
75 mm thickness for improved wall U-values
Water-repellent and breathable glass mineral wool
Non-combustible with excellent fire performance
Supplied in packs covering 3.28 m²
Full-fill cavity wall insulation
External masonry walls targeting improved U-values
New-build housing and residential developments
Standard cavity wall construction
Low-rise residential and commercial buildings
Low lambda value supports improved wall U-value performance
Helps reduce heat loss and improve building energy efficiency
Water-repellent fibres resist moisture ingress
Slabs friction-fit securely within cavities
Lightweight and easy to cut for fast installation
Product Type: Cavity Wall Insulation Slab
Manufacturer: Knauf Insulation
Insulation Type: Glass Mineral Wool
Product Range: DriTherm Cavity Slab 32
Thickness: 75 mm
Thermal Conductivity (Lambda): 0.032 W/mK
Coverage per Pack: 3.28 m²
Application: Full-Fill Cavity Wall Insulation
The Knauf 75 mm DriTherm Cavity Slab 32 is a reliable solution for achieving low U-values and improved thermal performance in standard cavity wall constructions. With its 0.032 W/mK lambda value, water-repellent properties and non-combustible mineral wool composition, it offers long-term energy efficiency, safety and regulatory compliance for modern building projects.
