IKO 3B - Glass Fibre Underlay

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£35.00 (ex. VAT) £42.00 (inc. VAT)

Availability: 5 in stock (can be backordered)

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.

  • Glass Fibre Based Underlay.
  • Ideal For Use Under Felt Shingles.
  • Roll weight: 36kg.

Formerly BS747 Type 3B.

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