Knauf DriTherm 37 150mm Cavity Wall Insulation Slab – 4.37m2 Pack

These unfaced DriTherm® 37 Cavity Slabs are fabricated glass mineral wool, designed for full-fill masonry cavity walls in external applications. They boast excellent thermal performance and are specifically sized to fit between wall ties without the need for retaining discs. Rated as Euroclass A1 non-combustible, cavity barriers are unnecessary as it reduces the risk of fire spreading through a cavity.

Manufactured with Knauf Insulation’s innovative ECOSE® Technology, which makes use of a bio-based binder, these slabs are intended for use in any exposure zone, including harsh areas, as they have the BBA certification to do so. They are also suitable for buildings up to 12m and multi-storey structures up to 25m in height, provided that they meet the BBA certification criteria.

Features & Benefits: Knauf DriTherm 37 150mm Cavity Wall Insulation Slab – 4.37m2 Pack

• 4.37m² pack coverage with eight slabs in a pack
• Water repellent and made from glass mineral wool
• BBA certified for use in various exposure zones
• Sized to fit between wall ties without retaining discs
• Thermal conductivity of 0.037 W/mK
• 4.05 m²K/W R-Value
• Water vapour resistivity: 5.00 MNs/g.m
• Suitable for external full-fill masonry cavity walls
• No inclusion of any ozone-depleting substances or greenhouse gases
• Installed easily due to lightweight structure

These slabs are also equipped with other desirable characteristics such as being odourless, rot-proof, non-hygroscopic, and impervious to vermin, fungi, mould, and bacteria. Tests performed by the BBA indicate that they do not transmit moisture from below the damp proof course level or through capillary action across the cavity, nor do they transmit water to the inner leaf.

Installation of DriTherm® Cavity Slabs is simpler than that of rigid boards and other insulants because the material adjusts to minor irregularities and knits together. Due to this, no air gaps remain, and performance is optimal. They are also lightweight so that handling is practical, which further allows for straightforward installation and cutting when appropriate. Short-term protection is provided by recyclable polythene packs (4-LDPE).

Standards & Certification

• EPD Standard: EN 15804
• Green Guide Rating: A+
• Reaction to fire: A1 Euroclass classification to BS EN 13501-1
• BBA Certification No: 95/3212
• Awarded the DECLARE ‘Red List Free’ label: Free from any harmful chemicals listed on the Living Building Challenge (LBC) Red List
• Certified by TÜV Nord: Manufactured in accordance with BS EN 13162, ISO 50001 Energy Management Systems, ISO 14001 Environmental Management Systems and ISO 9001 Quality Management systems

Please note:

• For longer-term storage on-site, it is best to keep this Knauf DriTherm® insulation indoors and covered and off the ground to maintain its effectiveness as exposure to the elements can impact its performance.