IKO Glass-Fibre Underlay is a waterproofing membrane, consisting of a strong glass fibre base coated with oxidised bitumen. It is sand finished on both surfaces. Used as an economical underlay (or intermediate layer) in a built-up felt roofing, and is usually fully bonded in hot bitumen. It is also used as an underlay to bitumen shingles in a pitched roof application.
IKO 3B Glass Fibre Underlay 20m
Roll Weight 35kg; Length 8m; Width 1m
Product Finish: Sand
Installation Method: Pour & Roll