Derbigum Flat Roof Membranes

Hydrotech 3D with Promise


Derbigum high performance waterproofing membranes offer enhanced performance properties including flexibility, excellent fire ratings, stronger reinforcement and ease of application.

Derbigum Bituminous Membranes have 40 year BBA durability approval along with use at zero-falls.

Click here to download the BBA Certificate.

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Key Features & Applications

  • Derbigum APP modified bitumen membranes can be used for re-roofing, new build and green roofs
  • BBA approved, fully warranted systems are available with a life expectancy in excess of over 40 years
  • Suitable for flame-free and cold application to warm roofs with metal, concrete or plywood decks and inverted roofs with concrete decks
  • The high melt point ensures membrane stability in the hottest weather whilst the polyester/glass fibre reinforcement provides high tensile strength
  • Manufactured in accordance with ISO 9001:2008 and ISO 14001:2004

Membranes & Insulation

  • Membrane choice includes Derbigum Black, Derbigum Mineral, Derbibrite and Derbigum Anti-Root
  • Insulation choice includes PIR, mineral wool, cork, cork/PIR composite and extruded polystyrene to suit specification and U-value parameters
  • A wide range of underlays are available, providing superior built-up roofing solutions
  • The single layer option offers a higher performance alternative to PVC single ply
  • Samples are available on request

Installation & Maintenance

  • Installed by a nationwide network of Derbigum registered contractors
  • Built-up systems comprise of a torch applied membrane with torched laps, single layer systems comprise of a cold bonded or mechanically fixed membrane with laps sealed by torch, hot air welding or in cold mastic
  • Options for completely flame-free, high speed spray installation are available, achieving 1000+ sq. m per day.
  • Only minimal routine maintenance is required

Featured Video

Derbigum Case StudyDerbigum Case Study

White House Works, Bold Road, Sutton, St Helens, Merseyside, WA9 4JG


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