When a fire ignites, it spreads by air movement between rooms, through unsealed penetrations in the walls and lumber. Building codes require the use of a draft stopping sealant in these spots, to reduce the potential spread of fire and help isolate flames to a single room. Fire Block Extreme is the perfect solution.
Engineered to seal with a single application in temperatures as low as -4°, Fire Block Extreme is our most popular fire block foam, designed to work well with our Extreme Temp window & door foam, in locations requiring the orange color for easy identification by inspectors.
