InteriA – A2 Internal Wall Insulation (IWI) System

InteriA is ROCKWOOL Wall Systems’ next-generation Internal Wall Insulation (IWI) system, designed to deliver high fire performance, effective moisture management and strong thermal efficiency for solid wall properties.

Constructed from non-combustible stone wool and achieving a fire classification of A2-s1,d0 to BS EN 13501-1, InteriA meets today’s most stringent safety expectations. Its moisture-open design reflects government best-practice guidance, helping walls dry to both sides reducing condensation, damp and mould.