Knauf DriTherm 32 150mm Cavity Insulation Slab

150mm Knauf DriTherm 32 Cavity Insulation Slabs are water-repellent Glass Mineral Wool slabs engineered for full-fill masonry cavity walls. Delivering outstanding thermal performance across various construction projects, these slabs are non-combustible and achieve the highest Euroclass A1 fire rating. Manufactured with Knauf Insulation ECOSE® Technology bio-based binder for superior performance.

Product specification

• Brand: Knauf®
• Model: DriTherm 32 - 150mm
• Thickness: 150mm
• Length: 1200mm
• Width: 455mm
• Dimensions: 1,200mm x 455mm x 150mm
• Board Coverage: 0.546m2
• Pack Coverage: 2.18m2
• R-Value: 4.65m2K/W
• Thermal Conductivity: 0.032 W/mK
• Vapour Resistivity: 5.00MNs/g.m.
• Density: 27kg/m3
• Material: Glass Mineral Wool
• Profile: Ultimate Cavity Slab
• Building Regulations: Class '0'
• Fire performance: Euroclass A1 (non-combustible)
• Finish: Unfaced
• Applications: Masonry cavity walls
• ECOSE Technology: Yes
• Features: Non-combustible ǀ Water-repellent
• Manufacturer: Knauf DriTherm®

ADVANTAGES

1. Non-combustible full-fill insulation removes the requirement for cavity barriers, substantially lowering fire spread risk within cavities.
2. BBA certified and water-repellent, approved for all exposure zones including extremely harsh coastal and industrial environments.
3. 150mm Cavity Slabs fit precisely between wall ties without needing retaining discs, streamlining installation.

About

The 150mm Knauf DriTherm 32 Ultimate Cavity Insulation Slab is a water-repellent glass mineral wool product engineered for full-fill applications in external masonry cavity walls. Featuring a thermal conductivity rating of 0.032W/mK, it delivers reliable thermal insulation performance.

This 150mm DriTherm 32 Cavity Slab combines durability with practical benefits—it's odourless, rot-resistant, non-hygroscopic, and vermin-proof. The material actively resists fungal, mould, and bacterial growth.

Built with Knauf ECOSE Technology, these Cavity Wall Slabs deliver an excellent Euroclass A1 fire classification. BBA certified for all exposure zones including severe coastal areas, they're approved for buildings up to 12m in any exposure zone and multi-storey structures reaching 25m.

These insulation slabs contain no ozone-depleting substances or harmful greenhouse gases. Knauf Glass and Rock Mineral Wool offer superior ease of installation compared to rigid board alternatives. The Knauf DriTherm Cavity Insulation Slabs conform to substrate irregularities, bonding together to seal air gaps and prevent thermal bridging.

Durability

The 150mm Knauf DriTherm Slabs provide odourless, rot-proof, non-hygroscopic performance with excellent vermin resistance and natural resistance to fungal, mould, and bacterial colonisation.

Application

Intended for thermal insulation in masonry cavity external walls, 150mm DriTherm Slabs are installed to achieve complete cavity fill. They're approved for buildings up to 12m high in any exposure zone (subject to BBA certification compliance) and suitable for multi-storey applications up to 25m in height.

Dritherm Cavity Wall Specifications

Info

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