Products / Toprock Tapered, Flute Filler and Cant Strips

Toprock Tapered, Flute Filler and Cant Strips are components cut from high- density stone wool roof insulation: tapered boards, with or without a bitumen facing, for positive drainage; flute fillers that fit the voids of standard metal deck profiles to absorb noise; and bitumen-coated cant strips for horizontal-to-vertical transitions. The product page prints compressive resistance of 11 psi at 10 percent and 15 psi at 25 percent, flame spread 0 and smoke developed 0 (ASTM E84), noncombustibility to ASTM E136, a pass under FM 4470, Class A under CAN/ULC S107-03 and UL certification.