ROCKWOOL Toprock® Tapered, Flute Filler and Cant strip fabricated components are cut from high-density stone wool roof insulation that will not warp or cup. The low co-efficient of linear expansion of this material means less movement during temperature changes and no shrinking over time that could otherwise cause energy loss.

Toprock Tapered products are available with and without a bitumen facing, and are engineered to ensure positive drainage and avoid ponding.

Toprock Flute Filler inserts into the void of standard metal deck profiles to absorb noise and incidental sound.

Toprock Cant strips are available with a bitumen coating to provide transitions from horizontal to vertical surfaces.