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.
Features and Benefits:
- Formerly BS 747:2000 Type 3B
- British Standard glass-fibre based
- Economical roofing materials
Product Finish: Sand
Project Type: Commercial Small, Domestic Large, Domestic Medium, Domestic Small