Roofing Felt

Flat roofs are very cost-effective, but concern about ponding vulnerability sometimes encourages expensive alternative solutions, this is unnecessary.  Our full range of proven products for use in a variety of environments allows all the flat roof options to be considered, planned and completed whether using torch-on, capsheets, breathable base layers, underlay, insulation and bonding compounds.
Flat Roof & Shed Felts
A comprehensive range of waterproofing products for flat roofs, garden sheds, summerhouses etc., manufactured using fibre strands coated and then saturated in oxidised bitumen’s, easily installed by mechanical fixing (large head nails), finished in traditional green slate granules.
  • Available in various length rolls up to 10m
  • Width 1m
  • Variety of thicknesses available
Vent3 Breathable Felt
Vent3 is a triple layer fabric, high performance breather membrane, made from high tensile spun bonded polypropylene layers, around a micro porous polypropylene film. Designed for use in a fully supported or unsupported tiled, slated or metal roof system. The high vapour permeability and waterproof nature of the membrane, combined with excellent tensile/tear strength and high wind uplift resistance make Vent3 the professional’s choice as the ultimate breather membrane.
  • 50m roll length
  • ​Available in 1m & 1.5m widths
Undertile/Underslate Felt
Traditional underlay on a pitched roof system, type 1F Undertile/Underslate Felt is a traditional fibre based hessian reinforced felt for use under tiles or slates, on open rafter or fully supported pitched roof applications. It has a felt fibre base combined with a layer of open weave hessian, saturated and coated with bitumen, and surfaced with sand.
  • Used as a secondary waterproofing membrane under slates or tiles on a pitched roof
  • Hessian backed to give extra strength
  • 15m roll length
  • 1m wide
Torch On felt
Cromatorch APP is a range of prefabricated Polymeric Bitumen Membranes manufactured from distilled bitumen and modified by high molecular weight plastomeric-polymers (APP), that give the waterproofing compound excellent thermal stability, resistance to atmospheric conditions and ageing due to temperature variation, reinforced with a non-woven polyester.  Ideal for use on domestic civil and industrial roofs in multi layer systems.  Concrete roofs (flat or curved), metal and timber decks.  Undertiles or slates and re-roofing of existing coverings.  The mineral version, with slate chippings is specifically used as a capsheet.