ROCKWOOL® Twin Roll is non-combustible thermal insulation for roof and attic spaces.
ROCKWOOL Twin Roll is manufactured from stone wool. The product is pre-split into two 100mm thick layers in a pack in preparation for 100mm to be installed between the rafters and 200mm over the rafters.
Twin Roll can be installed as an overlay for ceiling tiles in suspended ceilings.
ROCKWOOL stone wool is durable by nature. Sample testing from existing buildings shows that ROCKWOOL stone wool
retains its performance for at least 65 years* without being affected by compression or temperature and humidity changes.
ROCKWOOL stone wool insulation allows the construction to breathe, reducing the risk of condensation, which can lead to rot, mould and humidity damage.
The incorporation of ROCKWOOL Roll, Twinroll and Rollbatt within suitably designed constructions provides improved levels of sound reduction.
The non-directional fibre orientation and density of stone wool means that sound waves are trapped, and vibrations dampened which can significantly reduce outside sources of noise when used in an external wall.
ROCKWOOL insulation retains its shape and thickness for the lifetime of the building, which means it performs acoustically decade after decade.