Knauf DriTherm 34 100mm Cavity Insulation Slab

100mm Knauf DriTherm 34 Cavity Insulation Slabs are water-repellent glass mineral wool slabs engineered for complete-fill applications in masonry cavity walls. These slabs address a wide range of thermal requirements across building projects. They are non-combustible and achieve the premium Euroclass A1 fire rating. Manufactured with Knauf's distinctive ECOSE® Technology bio-based binder.

Product specification

• Brand: Knauf®
• Model: DriTherm 34 - 100mm
• Thickness: 100mm
• Length: 1200mm
• Width: 455mm
• Dimensions: 1,200mm x 455mm x 100mm
• Board Coverage: 0.546m2
• Pack Coverage: 4.37m2
• R-Value: 2.94m2K/W
• Thermal Conductivity: 0.034 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 risk within the cavity space.
2. BBA certified and water-repellent, enabling installation across all exposure zones including extremely harsh coastal and weather-exposed locations.
3. 100mm slabs are precisely sized to fit between wall ties without needing retaining discs.

About

The 100mm Knauf DriTherm 34 Ultimate Cavity Insulation Slab delivers water-repellent glass mineral wool performance for complete-fill use in external masonry cavity walls. Offering a certified thermal conductivity rating of 0.034W/mK, these slabs provide reliable thermal protection.

This 100mm cavity slab combines exceptional durability with an odourless profile, resisting rot, moisture absorption, and pest damage. It naturally inhibits fungal, mould, and bacterial growth.

Built using Knauf ECOSE Technology, these Cavity Wall Slabs deliver an outstanding Euroclass A1 fire rating. Holding BBA certification for all exposure zones including severe conditions, they're approved for buildings up to 12m in any exposure zone and for taller multi-storey structures reaching 25m.

These insulation slabs contain no ozone-depleting substances or harmful greenhouse gases. Knauf glass and rock mineral wool installation is simpler than rigid board alternatives. The Knauf DriTherm Cavity Insulation Slabs conform to substrate irregularities, bonding together to eliminate air pockets and thermal bridging.

Durability

The 100mm Knauf DriTherm Slabs offer an odourless, rot-resistant, moisture-stable composition that resists vermin and prevents fungal, mould, and bacterial colonisation.

Application

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

Dritherm Cavity Wall Specifications

Info

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