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Polyester Based Cap Sheets and UnderlaysThe Challenger products form a simple range of roofing membranes, which are suitable for domestic and commercial applications. Challenger SBS membranes have a polyester base for toughness and durability and an SBS modified bitumen coating. Green slate surface membranes are available for use as cap-sheets without the need for protection, sand surfaced membranes are used as underlays or where additional surfacing in the form of chippings or promenade tiles will be provided. - Traditional pour & roll application
- Tough polyester bases
- SBS modified bitumen coating
- 10 year material and labour guarantee if installed by a Registered Contractor
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