IKO Polyester T-O Underlay
Utilises a strong polyester base, coated with APP modified bitumen. Finished with sand on the top and surfaced on the underside with flame dispersible polyethylene. For use as a high performance underlay or as a top layer (where used as a top layer it should be finished with either chippings or solar reflective paint)

IKO Glass Fibre T-O Underlay
Utilises a strong glass fibre base, coated with APP modified bitumen. Finished with sand on the top and surfaced on the underside with flame dispersible polyethylene..

Features and Benefits
underlay
  • Polyester or Glass fibre options
  • High softening point bitumen coating
  • Durable performance
  • Strong and flexible
  • Torch application
  • Easily detailed