InstaFibre Rockwool

Manufactured from Basalt volcanic rock, this type comprises granular rock wool fibres treated with an inert water repellent during manufacture. Its loose fibres are easily blown into the recesses of the cavity. It is a well established product offering excellent thermal resistance.

The InstaGroup, since foundation in 1980, has concentrated its main core activity on the development and supply of cavity wall and roof insulation materials for the energy efficiency industry.

Its InstaFibre range of materials is supplied through the largest network of BBA approved installers covering the whole of the UK. InstaFibre is used by over 50% of Government Scheme Installers who are BBA approved for cavity wall insulation.

Thermal conductivity = 0.039 W/mK’