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IKO Roofing Felt Shingle Underlay 3B - 20m x 1m

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£43.49 Incl. VAT
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IKO glass fibre underlay is a waterproofing membrane manufactured to BS 747 Type 3B. It consists of a strong glass fibre base, coated with oxidised bitumen and is sand finished on both surfaces.

Features & Benefits: IKO Roofing Felt Shingle Underlay 3B - 20m x 1m

  • Waterproofing membrane
  • Manufactured to BS 747 Type 3B
  • Consists of a strong glass fibre base
  • Coated with oxidised bitumen and sand finished on both surfaces
  • Perfect for use under felt shingles
  • Can be used as an underlay to bitumen shingles in a pitched roof application
  • Economical underlay


  • Ideal for use under felt shingles, this economical underlay (or intermediate layer) can be used 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.

Product Specification

  • Length: 20m
  • Width: 1000mm


WIDTH 1000mm LENGTH 20m


Type Underlay

Questions & Answers

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5 / 5 8 reviews
Michael Hamrogue
17th August 2021
Worth putting on under the shingles.
22nd June 2021
Good product
Robert Cole
21st April 2021
Easy to use, easy to cut. Good stuff.
Mr Douglas Heftel
6th January 2021
perfect produce made the ob a lot easoer
David Appleby
2nd November 2020
Quality products as good prices
30th October 2020
Good product good price
Mr S J.Rowland /This was in my Daugthers name
24th September 2020
Was easy to lay gave good base for shingles
John Sanderson
13th June 2020
Provided a great base
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IKO Roofing Felt Shingle Underlay 3B - 20m x 1m

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