IKO Perforated Sand Underlay 3H – 20m x 1m (Pallet of 25)
IKO Perforated Sand Underlay is a perforated venting underlay which is sand finished on both surfaces. This product is loose laid to provide an economical, controlled partial bond to a substrate, when the subsequent layer is fully bonded in hot bitumen.

Features and Benefits

  • Formerly BS 747 Type 3H
  • Roll Coverage: 20m2
  • British Standard glass-fibre based
  • Economic roofing materials
  • Sector of Application: Flat
  • Product Type: Bituminous
  • Membrane Type: Underlay
  • Colour: Black
  • Product Finish: Sand
  • Installation Method: Loose Laid
  • Project Type: Commercial Small, Domestic Large, Domestic Medium, Domestic Small