Rock Mineral Wool

Rock mineral wool is made mainly from volcanic rock, typically basalt and/or dolomite. An increasing proportion is now recycled material from slag, a waste product from blast furnaces. The materials are melted and then spun into fine strands of wool. A resin is used to bind the wool together to form a mat of insulation.

Characteristics

Short strands – high compressive strength

Suitable for temperatures up to 850°C

Non-combustible

Available in slabs, rolls and mattresses

High compressive strength

Main uses

Thermal insulation of flat roofs, rainscreen façades and external wall insulation

Fire protection of structural steel, including smoke and fire barriers

High temperature applications

Sound insulation for floors and walls