ROCKWOOL Safe 45 Semi-rigid, Firestopping Stone Wool Insulation, 1-in x 24-in x 48-in

Keep residential units safe with this Roxul insulation board from ROCKWOOL. Its sound-dampening features are useful in residential buildings with multiple units to block out noise between units. The semi-rigid insulation board fits into small spaces to stop fires with a noncombustible mix of recycled and natural materials. With a temperature threshold of 1177° C, this insulation is good for stopping the spread of fires. One board measures 1 in x 24 in x 48 in and there are 18 in a single pack. The ROXUL SAFE 45 board repels water to prevent water damage, such as mildew, rotting and mould, as well as stops corrosion from setting in. This helps prolong the lifespan and performance of the high-density board. There is no HCFC or CFC in this insulation, so it's safe to use in residential buildings. The board complies with the National Building Code.