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Description
The 85mm Knauf Dritherm 37 Glass Mineral Wool Cavity Wall Insulation – 174.8m² (40 Packs) is a high-performance full-fill cavity wall insulation solution designed for use in external masonry cavity walls. Manufactured from glass mineral wool, these insulation slabs provide effective thermal performance while helping reduce heat loss and improve the energy efficiency of residential and commercial buildings.
Knauf Dritherm 37 cavity slabs are designed to friction-fit within an 85mm cavity wall space and are suitable for projects where cavity widths are limited, such as extensions and refurbishment works on older properties. With a thermal conductivity of 0.037 W/mK and a thermal resistance of 2.25 m² K/W, these slabs offer reliable insulation performance and can also be combined with other insulation methods to help achieve required U-values.
This bulk pack of 40 packs is ideal for large-scale construction projects, new builds, and extensions requiring high-volume insulation coverage. The slabs provide excellent fire safety with a Euroclass A1 reaction to fire rating and are manufactured to strict quality standards. Knauf Dritherm 37 is BBA certified, EUCEB certified, and complies with BS EN 13162 for dependable long-term performance.
Key Features
High-quality 85mm glass mineral wool cavity insulation
Designed for use in 85mm external cavity walls
Full-fill cavity insulation slabs for improved thermal efficiency
Suitable for new builds, extensions, and refurbishment projects
Ideal for older properties with slimmer cavity widths
Can be combined with other insulation systems to achieve required U-values
Designed to friction-fit within cavity walls
Excellent thermal conductivity of 0.037 W/mK
Provides thermal resistance of 2.25 m² K/W
Euroclass A1 fire resistance classification
BBA certified for quality assurance
Complies with BS EN 13162 standards
EUCEB certified mineral wool insulation
Manufactured under ISO 50001, ISO 14001, ISO 45001, and ISO 9001 management systems
Dimensions & Pack Size
Product Type: Cavity Wall Insulation Slab
Insulation Material: Glass Mineral Wool
Thickness: 85mm
Length: 1200mm
Width: 455mm
Coverage per Pack: 4.37m²
Pack Quantity: 40 Packs
Slabs per Pack: 8 Slabs
Total Coverage: 174.8m²
Thermal Conductivity: 0.037 W/mK
Thermal Resistance: 2.25 m² K/W
Fire Rating: Euroclass A1
Certification: BBA Certified, BS EN 13162, EUCEB Certified
DELIVERY INFORMATION
FAST RELIABLE UK DELIVERY STANDARD DELIVERY - 1 TO 3 WORKING DAYS FREE DELIVERY ON ORDERS OVER £500 PALLET DELIVERY AVAILABLE NEED IT URGENTLY? CONTACT US FOR EXPRESS OPTIONS
