Knauf Insulation DriTherm Cavity Slab 37 (Standard) 75 x 455 x 1200mm (4.37m²) Pack of 8

The Knauf Insulation DriTherm Cavity Slab 37 (Standard) 75mm is a reliable and cost-effective glass mineral wool insulation solution, designed specifically for full-fill masonry cavity walls. It provides excellent thermal efficiency, moisture resistance, and fire safety, ensuring comfortable and energy-efficient buildings.

Each pack contains 8 slabs measuring 1200 x 455 x 75mm, with a total coverage of 4.37m², making it ideal for new build housing and renovation projects.

Features and Specifications

• Brand: Knauf Insulation
• Product Type: DriTherm Cavity Slab 37 (Standard)
• Dimensions: 1200mm (L) x 455mm (W) x 75mm (T)
• Pack Coverage: 4.37m² (8 slabs per pack)
• Material: Glass mineral wool
• Thermal Conductivity: 0.037 W/mK
• Fire Rating: Euroclass A1 (non-combustible)
• Water Repellent: Yes – prevents water transfer across the cavity
• Application: Full-fill masonry cavity walls

Benefits

• Excellent thermal insulation – reduces heat loss and supports energy efficiency.
• Moisture-resistant – ensures the cavity remains dry and effective.
• Non-combustible material – provides exceptional fire protection.
• Good acoustic performance – improves comfort by reducing sound transmission.
• Durable and maintenance-free – retains performance for the building’s lifetime.
• Easy to install – friction fits between wall ties, simplifying installation.

Ideal For

• Full-fill masonry cavity wall systems
• Residential and commercial new builds
• Energy-efficient wall insulation upgrades

Is DriTherm 37 suitable for partial-fill cavity applications?
No, DriTherm 37 is designed for full-fill masonry cavity wall insulation. For partial-fill systems, consider a rigid PIR board such as Unilin XT CW T&G.