IKO Challenger is a simple range of reinforced bitumen roofing membranes which are suitable for domestic and commercial applications. They have a polyester base for toughness and durability. The sand-surfaced IKO Challenger Underlay can be used where additional surfacing in the form of chippings or promenade tiles will be provided.
APP membranes with a green surface are available for use as a capsheet without the need for additional surface protection. IKO Challenger membranes (both capsheets and underlays) have polyester bases and modified bitumen coatings.
