Knauf
75mm Knauf Insulation DriTherm® Cavity Slab 32 1200mm x 455mm (6 per pack)
£34.51 Inc VAT £28.76 Ex VATUnit price /UnavailableIn stock
Knauf
100mm Knauf Insulation DriTherm® Cavity Slab 32 1200mm x 455mm (6 per pack)
£43.80 Inc VAT £36.50 Ex VATUnit price /UnavailableIn stock
Knauf
125mm Knauf Insulation DriTherm® Cavity Slab 32 1200mm x 455mm (4 per pack)
£36.94 Inc VAT £30.78 Ex VATUnit price /UnavailableIn stock
Knauf
150mm Knauf Insulation DriTherm® Cavity Slab 32 1200mm x 455mm (4 per pack)
£43.22 Inc VAT £36.02 Ex VATUnit price /UnavailableIn stock
Knauf
50mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (12 per pack)
£25.80 Inc VAT £21.50 Ex VATUnit price /UnavailableIn stock
Knauf
75mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (8 per pack)
£20.57 Inc VAT £17.14 Ex VATUnit price /UnavailableIn stock
Knauf
100mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (12 per pack)
£40.02 Inc VAT £33.35 Ex VATUnit price /UnavailableIn stock
Knauf
125mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (6 per pack)
£25.39 Inc VAT £21.16 Ex VATUnit price /UnavailableIn stock
Knauf
150mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (8 per pack)
£38.68 Inc VAT £32.23 Ex VATUnit price /UnavailableIn stock-
Knauf
65mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (10 per pack)
£20.46 Inc VAT £17.05 Ex VATUnit price /UnavailableIn stock -
Knauf
85mm Knauf Insulation DriTherm® Cavity Slab 32 1200mm x 455mm (5 per pack)
£29.58 Inc VAT £24.65 Ex VATUnit price /UnavailableIn stock -
Knauf
85mm Knauf Insulation DriTherm® Cavity Slab 37 1200mm x 455mm (8 per pack)
£23.12 Inc VAT £19.27 Ex VATUnit price /UnavailableIn stock 
Knauf
75mm Knauf Insulation DriTherm® Cavity Slab 34 1200mm x 455mm (10 per pack)
£41.02 Inc VAT £34.18 Ex VATUnit price /UnavailableIn stock-
Knauf
100mm Knauf Insulation DriTherm® Cavity Slab 34 1200mm x 455mm (8 per pack)
£43.19 Inc VAT £35.99 Ex VATUnit price /UnavailableIn stock 
Knauf
125mm Knauf Insulation DriTherm® Cavity Slab 34 1200mm x 455mm (6 per pack)
£43.54 Inc VAT £36.28 Ex VATUnit price /UnavailableIn stock-
Knauf
150mm Knauf Insulation DriTherm® Cavity Slab 34 1200mm x 455mm (5 per pack)
£38.66 Inc VAT £32.22 Ex VATUnit price /UnavailableIn stock
Knauf DriTherm Cavity Slabs are high-performance, non-combustible glass mineral wool batts designed for use in full fill masonry cavity wall insulation. Manufactured using Knauf's ECOSE® Technology, these slabs offer excellent thermal performance, sound absorption, and fire resistance—making them a popular choice for energy-efficient homes and buildings.
DriTherm cavity slabs are BBA certified, moisture resistant, and designed to be easily friction-fitted between wall ties for a continuous insulation layer with no gaps.