50 mm DriTherm Cavity Slab 37 (6.55 M2)

The Knauf 50 mm DriTherm Cavity Slab 37 (6.55 m²) is a high-quality full-fill cavity wall insulation solution designed to provide effective thermal performance in masonry construction. With a lambda value of 0.037 W/mK, it helps reduce heat loss through external walls and supports improved U-values in residential and light commercial buildings.

Manufactured by Knauf Insulation using water-repellent glass mineral wool, DriTherm Cavity Slab 37 combines thermal efficiency with breathability and moisture resistance. The 50 mm thickness is ideal for narrow cavity wall constructions or where insulation space is limited. Supplied in packs covering 6.55 square metres, the slabs are lightweight, easy to handle and quick to install, helping to improve productivity on site.

Key Features

• Knauf DriTherm full-fill cavity wall insulation

• Lambda value: 0.037 W/mK

• 50 mm thickness for narrow cavity constructions

• Water-repellent and breathable glass mineral wool

• Non-combustible with excellent fire performance

• Supplied in packs covering 6.55 m²

Typical Applications

• Full-fill cavity wall insulation

• External masonry walls with limited cavity width

• New-build housing and extensions

• Low-rise residential buildings

• Light commercial construction

Performance & Workability

• Supports improved wall U-values and energy efficiency

• Water-repellent fibres resist moisture penetration

• Slabs friction-fit securely within cavities

• Lightweight and easy to cut on site

• Fast and efficient installation

Technical Specification

• Product Type: Cavity Wall Insulation Slab

• Manufacturer: Knauf Insulation

• Insulation Type: Glass Mineral Wool

• Product Range: DriTherm Cavity Slab 37

• Thickness: 50 mm

• Thermal Conductivity (Lambda): 0.037 W/mK

• Coverage per Pack: 6.55 m²

• Application: Full-Fill Cavity Wall Insulation

Why Choose Knauf 50 mm DriTherm Cavity Slab 37?

The Knauf 50 mm DriTherm Cavity Slab 37 offers a practical and cost-effective insulation solution for narrow cavity wall constructions. Its 0.037 W/mK lambda value, water-repellent properties and non-combustible mineral wool construction make it a reliable choice for improving thermal performance and meeting building regulation requirements.