This kit is intended for use on metal roofs. It has a cowl and 60cm long flue (30 gauge galvanised steel) in light silver, suitable roof flashing, and mounting ties. The unique design of these cowls provides efficient air exhaust expulsion. Unlike regular open–type roof cowls, the mushroom cowl is made of aluminium and slips over the roof pipe to prevent rainwater from running down the inside. It also offers superior protection from rain, back drafts, and rodents.
