Knauf DriTherm 32 100mm Cavity Insulation Slab

100mm Knauf DriTherm 32 Cavity Insulation Slabs are water-repellent Glass Mineral Wool slabs engineered for full-fill masonry cavity walls. These slabs address varied thermal requirements across construction projects. They deliver non-combustible performance and achieve the premium Euroclass A1 fire rating. Manufactured with Knauf Insulation advanced bio-based binder, ECOSE® Technology.

Product specification

• Brand: Knauf®
• Model: DriTherm 32 - 100mm
• Thickness: 100mm
• Length: 1200mm
• Width: 455mm
• Dimensions: 1,200mm x 455mm x 100mm
• Board Coverage: 0.546m2
• Pack Coverage: 3.28m2
• R-Value: 3.13m2K/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, minimising fire spread risk within the cavity.
2. BBA-certified and water-repellent, enabling installation in all exposure conditions, including extremely challenging environments.
3. 100mm Cavity Slabs fit precisely between wall ties without needing retaining discs.

About

The 100mm Knauf DriTherm 32 Ultimate Cavity Insulation Slab is a water-repellent glass mineral wool product engineered for full-fill use in external masonry cavity walls. Offering a certified thermal conductivity of 0.032W/mK, this slab delivers reliable thermal performance.

This 100mm DriTherm 32 Cavity Slab combines exceptional durability with an odourless, rot-resistant, non-hygroscopic composition that resists vermin. It actively prevents fungal, mould, and bacterial growth.

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

These insulation slabs contain no ozone-depleting substances or greenhouse gases. Knauf Glass and Rock Mineral Wool installation is straightforward 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 100mm Knauf DriTherm Slabs are odourless, rot-resistant, non-hygroscopic, vermin-resistant, and inhibit fungal, mould, and bacterial development.

Application

Intended for thermal insulation in masonry cavity external walls, 100mm DriTherm Slabs are positioned to fill the cavity completely. They're approved for buildings up to 12m in any exposure zone (subject to BBA certification compliance) and work well for multi-storey constructions reaching 25m in height.

Dritherm Cavity Wall Specifications

Info

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