Collection: Knauf Dritherm 32

The Knauf Dritherm 32 cavity slabs are equipped with rigid and semi-rigid slabs that are non-combustible and water repellent and constructed of glass mineral wool.

These are 455wide and compatible to standard vertical wall spacing that ensures a closed joint with adjacent slabs. The Knauf Dritherm slabs come with a thermal conductivity that ranges from 0.32 to 0.37 W/mK. The slabs are classified as Euroclass A1 to BS EN 13501-1.

These are made up of completely eco-friendly material and represent no threat to the environment. They have zero global warming and ozone layer depletion potential. They are equipped with the benefits of ESCOSE technology which impart a formaldehyde-free structure and are based on rapidly renewable materials, instead of petro-based chemicals. It delivers environmental sustainability and reduces embodied energy.

The insulation slabs are rot proof, odorless, non-hygroscopic, discourage any kind of growth of fungi, bacteria or mould and do not sustain vermin. These slabs are moisture resistant and do not transmit water to its inner leaf. They also do not transmit moisture through capillary actions through its cavities or below its damp proof course level.

Applications of The Knauf Dritherm 32 insulation slabs

The Earthwool Dritherm slabs provide thermal insulation for masonry cavity external walls and fill cavities fully after installation. They are used in buildings which range up to 12 meters of height in all exposure zones and can be used in various multi-storey applications.


  • It comes with the approval of British Board of Agreement for use in all exposure zones

  • Imparts excellent thermal and fire performance

  • Water repellent and durable

  • Slabs ‘knit’ together, thus eliminating air gaps between adjacent slabs

Knauf Dritherm Cavity Slab 32 (455mm x 1200mm) - All Sizes
Knauf Earthwool Dritherm 32 (455mm x 1200mm) - All Sizes
Regular price
from £39.38 £47.26
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from £39.38 £47.26
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