Skip to content

Knauf Insulation Earthwool DriTherm Cavity Slab 32 Ultimate 100mm (3.28m2)

by Knauf
SKU 06IG10481

For thermal insulation in residential and non-residential masonry cavity external walls, Earthwool DriTherm Cavity Slabs have a special additive to make the product water repellent.

They are 455mm wide to suit standard vertical wall tie spacings allowing a closed joint with adjacent slabs.

Earthwool DriTherm Cavity Slabs are non-combustible Glass Mineral Wool slabs, manufactured using our revolutionary ECOSE® Technology and a water repellent additive, designed for use in external masonry cavity walls to provide a full-fill insulation solution which is installed as walls are being built.

Glass Mineral Wool

Masonry cavity walls


  • 0.032 W/mK
  • Excellent thermal performance.
  • Non-combustible A1 Euroclass Reaction to Fire classification
  • Manufactured using a water repellent additive
  • Fully fill the cavity to prevent mortar snots and prevent bridges
  • Slabs are sized to fit between wall ties without the need for retaining discs,
  • Quick and easy to install
  • British Board of Agrément approved for use in all exposure zones