A full fill, mineral wool insulation providing robust fire-resistant, thermal insulation for cavities in masonry walls. Ideal for residential extensions and renovations, it's easy to install without gaps and won't slump or sag in the cavity over time. It's also water repellent and vapour permeable, allowing material to breathe without holding moisture, rotting or growing mould.

Brand Name	Rockwool
Material	Mineral wool
Type	Insulation
Certifications Met	BBA
Waterproof	Yes
Width Metric (mm)	455
Thickness Metric (mm)	100
Coverage (m2)	3.28
Length	1200mm
Thermal conductivity	0.037 W/mK
R-value (thermal resistance)	2.7m²K/W