Knauf Insulation DriTherm Cavity Slab 37 (Standard) 100 x 455 x 1200mm (6.55m²) Pack of 12

The Knauf Insulation DriTherm Cavity Slab 37 (Standard) 100mm is a high-quality glass mineral wool insulation solution specifically designed for full-fill masonry cavity walls. Engineered for superior thermal performance, fire safety, and water resistance, it ensures long-lasting warmth and energy efficiency in new build and renovation projects.

Each pack contains 12 slabs measuring 1200 x 455 x 100mm, providing a total coverage of 6.55m² — ideal for standard 100mm cavity walls.

Features and Specifications

• Brand: Knauf Insulation
• Product Type: DriTherm Cavity Slab 37 (Standard)
• Dimensions: 1200mm (L) x 455mm (W) x 100mm (T)
• Pack Coverage: 6.55m² (12 slabs per pack)
• Material: Glass mineral wool
• Thermal Conductivity: 0.037 W/mK
• Fire Rating: Euroclass A1 (non-combustible)
• Water Repellent: Yes – resists moisture and prevents water transmission
• Application: Masonry cavity walls (full-fill)

Benefits

• Exceptional thermal insulation – reduces heat loss and improves energy efficiency.
• Water-resistant design – ensures the cavity remains dry and effective over time.
• Fire-safe material – Euroclass A1 non-combustible for maximum safety.
• Sound insulation – contributes to a quieter, more comfortable indoor environment.
• Durable and maintenance-free – long-lasting performance without deterioration.
• Easy to install – lightweight, friction-fit slabs stay securely in place.

Ideal For

• Full-fill masonry cavity wall insulation

• Residential new builds and retrofit projects

• Energy-efficient wall upgrades requiring thermal and moisture protection

Can DriTherm 37 be used in both external and internal walls?
DriTherm 37 is specifically designed for use in masonry cavity walls (external walls). It provides full-fill insulation with excellent moisture resistance and thermal performance.