The only roofing waterproofing membrane with a 40-year durability statement that also includes zero falls

Derbigum, the UK’s highest-performance bituminous roofing membrane with a 40-year BBA durability statement, now also includes zero falls.

Alumasc’s Derbigum waterproofing membrane is the only high-performance bituminous roofing membrane with a 40-year durability statement that also includes zero falls from the BBA (British Board of Agrément).

Whilst other competitors’ may have durability statements that are typically for 20 or 25 years, Alumasc’s Derbigum stands out for its proven reliability with a 40-year BBA durability statement – giving specifiers and end-users added confidence as to the product’s in-service longevity. This BBA now also includes for use as fully-bonded or partially bonded waterproofing on flat, pitched or zero-pitched roofs with limited access, and is the only bituminous membrane on the market with proven 40-year durability and approval for zero falls installations.

With a proven track record of success, Alumasc’s Derbigum systems have held a BBA certificate since 1980 and offer a variety of environmentally-beneficial, sustainable characteristics including: membranes with high levels of recycled content; innovative CO2 neutralising membranes; energy efficient ‘cool’ roofs; and vegetal, non-bituminous solutions.