Derbigum NT Membrane

NT Full Build Up


Derbigum NT High Performance Roofing Systems comprise an ecological reinforced modified bituminous waterproofing membrane, underlays, insulation boards and air and vapour control layers (AVCL). Derbigum has a proven track record since 1967 and is subject to the highest levels of certification and testing. Using a variety of installation methods and build-ups systems are designed to meet the individual requirements of every project for use across all building sectors in both refurbishment and new-build roofing and waterproofing projects.

Key Features & Applications

  • Derbigum NT membranes comprise an ecological reinforced modified bituminous waterproofing membrane and underlays
  • BBA approved
  • When installed on stable substrates and regularly maintained, the system will have a life expectancy of up to 50 years
  • Single-source warranty options for up to 35 years
  • Suitable for flame-free and cold application to warm roofs with metal, concrete or plywood decks and inverted roofs with concrete decks
  • Manufactured in accordance with ISO 9001:2015 and ISO 14001:2015

Environmental Benefits

  • Derbigum NT is manufactured using 30% of recycled materials
  • The specific formula blended with polymers gives exceptional, durable characteristics and is 100% recyclable at the end of its life

Membranes & Insulation

  • Insulation choice includes PIR, mineral wool, cellular glass, 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 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
  • Only minimal routine maintenance is required

Featured Project

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