Knauf Dritherm Cavity Slab 37 Standard Insulation 75mm x 455mm x 1200mm

Cavities within walls exist to prevent heat from escaping and moisture from getting into buildings. Providing a layer of cavity wall insulation can help to further reduce heat loss and increase the savings made on energy bills.

This Dritherm Cavity Slab Insulation is water resistant and designed to fill a wall cavity entirely.


  • Size: 455mm x 1200mm
  • Thicknes: 75mm
  • Coverage Per Pack: 4.37m²
  • Pack: 8
  • Thermal Resistance: 2m²K/W
  • Thermal Conductivity: 0.0037W/mK

This insulation will ’knit’ together to form a bond preventing any pockets of air between slabs.

    Length (mm): 1200
    Width (mm): 455
    Thickness (mm): 75

£17.90 inc VAT

In Stock Limited Delivery