PACK 2X4X1-1/2 COMFORTBOARD 80 ROCKWOOL 48 SFT/PACK ROXUL"
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ROCKWOOL COMFORTBOARD 80 is a stone wool insulation product that contains fire and provides a continuous layer of insulation. Fire resistant and non-combustible: adds extra minutes of fire safety to exterior and basement walls. Superior acoustic performance. Vapor permeable and water resistant: allows the wall system to breathe. High recycled content: made from natural stone recycled content, HFC free.