Roof pro Torch-on underlay membranes are rolled and applied hot, using a propane torch to heat the underside, which releases the molten bitumen to provide adhesion to a flat roof. Less heat required to melt SBS Bitumen than APP and more flexible in a wider temperature range. SBS Modified Bituminous Torch-on Membrane. Sand finished Underlay. Part of a 2 Layer system. Polyester reinforced for better tear resistance. 12 Year Life Expectancy
SBS Torch-on Underlay 8Mx1m
