150 mm DriTherm Cavity Slab 32 (2.18 M2)

The Knauf 150 mm DriTherm Cavity Slab 32 (2.18 m²) is a high-performance full-fill cavity wall insulation solution, engineered to deliver excellent thermal efficiency with a low lambda value of 0.032 W/mK. Designed for modern masonry construction, it helps achieve low U-values in external walls, supporting compliance with current Building Regulations and energy efficiency targets.

Manufactured by Knauf Insulation using water-repellent glass mineral wool, DriTherm Cavity Slab 32 provides reliable thermal insulation while remaining breathable and non-combustible. The 150 mm thickness is ideal for wide cavity wall constructions, enabling designers and contractors to meet demanding U-value requirements without partial fill systems. Supplied in packs covering 2.18 square metres, the slabs are lightweight, easy to handle and quick to install on site.

Key Features

• Knauf DriTherm full-fill cavity wall insulation

• Lambda value: 0.032 W/mK for high thermal performance

• 150 mm thickness for achieving low wall U-values

• Water-repellent and breathable glass mineral wool

• Non-combustible with excellent fire performance

• Supplied in packs covering 2.18 m²

Typical Applications

• Full-fill cavity wall insulation

• External masonry walls requiring low U-values

• New-build housing and residential developments

• Wide cavity wall construction

• Low-rise residential and commercial buildings

Performance & Workability

• Low lambda value supports improved wall U-value performance

• Helps reduce heat loss and improve building energy efficiency

• Water-repellent fibres resist moisture penetration

• Slabs friction-fit securely within cavities

• Lightweight and easy to cut for fast installation

Technical Specification

• Product Type: Cavity Wall Insulation Slab

• Manufacturer: Knauf Insulation

• Insulation Type: Glass Mineral Wool

• Product Range: DriTherm Cavity Slab 32

• Thickness: 150 mm

• Thermal Conductivity (Lambda): 0.032 W/mK

• Coverage per Pack: 2.18 m²

• Application: Full-Fill Cavity Wall Insulation

Why Choose Knauf 150 mm DriTherm Cavity Slab 32?

The Knauf 150 mm DriTherm Cavity Slab 32 is an ideal solution for projects targeting low U-values and high thermal performance in cavity walls. With a lambda value of 0.032 W/mK, non-combustible construction and water-repellent properties, it delivers long-term energy efficiency, safety and regulatory compliance for modern buildings.