The Fibre Cement Soffit Undercloak Strip 150mm x 1.2m is a high-performance structural component specifically designed for supporting mortar beds at roof verges. Manufactured from a durable, non-combustible blend of cement and cellulose fibers, it provides a stable, rot-proof, and fire-resistant strip that forms the critical base for traditional wet-verge mortar installations.
 
Featuring a pre-cut 150mm width and an easy-to-handle 1.2m length, this undercloak strip is engineered to bridge the gap between the brickwork or bargeboard and the outermost roof tile. Its lightly textured, high-adhesion surface ensures maximum mechanical bond strength with bedding mortar, preventing cracking, slip, and premature deterioration at the verge edge over time.
 
Engineered to withstand prolonged exposure to moisture, severe atmospheric cycles, and environmental weathering, the strip will not warp, swell, or rot like timber alternatives. It provides a clean, straight edge along the gable end, ensuring a professional, durable finish that protects the roof timbers and wall cavities from water ingress and pest infestation.