IKO PERFORATED SLATE UNDERLAY
IKO Perforated Slate Underlay is a loose laid perforated underlay which is designed to provide a controlled partial bond to a substrate when the subsequent layer is fully bonded in hot bitumen in a built-up roofing system.
IKO Perforated Slate Underlay is sand finished on the top surface and slate finished on the underside.
Roll weight: 26kg. Roll size: 10m x 1m.
(Formerly BS747 Type 3G)