100 mm DriTherm Cavity Slab 32 (3.28 M2)

The Knauf 100 mm DriTherm Cavity Slab 32 (3.28 m²) is a high-performance full-fill cavity wall insulation slab engineered to deliver excellent thermal efficiency with a low lambda value of 0.032 W/mK. It is designed for modern masonry construction where achieving low U-values and improved energy performance is essential for meeting current Building Regulations.

Manufactured by Knauf Insulation using water-repellent, non-combustible glass mineral wool, DriTherm Cavity Slab 32 provides reliable insulation while remaining breathable and resistant to moisture. The 100 mm thickness makes it suitable for standard and wider cavity wall constructions, allowing effective thermal performance without complex partial-fill systems. Supplied in packs covering 3.28 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

• 100 mm thickness for achieving improved wall U-values

• Water-repellent and breathable glass mineral wool

• Non-combustible with excellent fire performance

• Supplied in packs covering 3.28 m²

Typical Applications

• Full-fill cavity wall insulation

• External masonry walls targeting low U-values

• New-build housing and residential developments

• Standard and 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 ingress

• 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: 100 mm

• Thermal Conductivity (Lambda): 0.032 W/mK

• Coverage per Pack: 3.28 m²

• Application: Full-Fill Cavity Wall Insulation

Why Choose Knauf 100 mm DriTherm Cavity Slab 32?

The Knauf 100 mm DriTherm Cavity Slab 32 provides a dependable solution for achieving low U-values and high thermal performance in cavity wall constructions. With its 0.032 W/mK lambda value, water-repellent design and non-combustible mineral wool composition, it delivers long-term energy efficiency, safety and compliance for modern building projects.