
Product code: UL3B
Estimated delivery: 2 - 3 Days
IKO Felt Shingle Underlay 3B (20m x 1m)
IKO Glass Fibre Underlay is a waterproofing membrane, manufactured to BS 747 Type 3B, consisting of a strong glass fibre base coated with oxidised bitumen. It is sand finished on both surfaces.
This product is used as an economical underlay (or intermediate layer) in a built-up felt roofing specification, and is usually fully bonded in hot bitumen. It is also used as an underlay to bitumen shingles in a pitched roof application.
Roll weight: 36kg.
(Formerly BS747 Type 3B)


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