Products / Fire-Blox Master Flash

A fire-resistant, self-extinguishing pipe flashing for metal roofs made of a black high-fire polymer on a flexible aluminum base, which Aztec says is specifically designed to pass the UL 94-5VA flammability test and helps prevent the spread of fire from the roof into the building. It comes in twelve sizes (Mini through Maxi-O) fitting closed top to 28-1/2 in. pipes on bases from 2-1/4 in. to 34 in., and is listed with IAPMO certification No. 3121 for use with Type B vents. Black only, with a 10-year warranty.