This glass fibre underlay from IKO is a waterproofing membrane supplied in a 20m x 1m roll, suitable for use as an underlay or intermediate layer within bituminous built-up roofing systems. Constructed with a robust glass fibre core and coated both sides with oxidised bitumen, it is designed for use across a wide range of roofing applications.
Typically used in commercial and domestic settings, the underlay can be bonded using hot bonding bitumen, cold-applied felt adhesive, or fixed as a nailed underlay on boarded pitched roofs. It is also suited for use beneath bitumen shingles, providing an economical and versatile option for roof installers seeking dependable underlayment in multi-layer felt systems.
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