DERBIGUM^® NT 4

The bituminous waterproofing membrane in line with the circular economy

DERBIGUM NT is a bitumen-plastomer membrane developed on the basis of in-depth knowledge of the raw materials used in DERBIGUM SP FR.
It differs from DERBIGUM SP FR by the addition of DERBITUMEN, a raw material resulting from the recycling of application waste and old selected bituminous roofs. Its specific formulation gives it exceptional properties in terms of durability and ecological characteristics.
The membrane is provided with two distinct reinforcements offset upwards. Glass fleece and polyester fleece, which give the membrane perfect dimensional stability and excellent tear and puncture resistance.
The lower face has on one side a talc-coated edge for a glued or welded application, and on the other side a hot-melt polyethylene edge for exclusive flame application.

Product advantages

Ecological advantages
Eco-designed:

100% recyclable

100% made with green electricity

DERBITUMEN inside

25% recycled materials (PwC certificate available on request)

EPD-NIBE n°20200323-8381 (available on request)

Environmental benefit greater than other bituminous and synthetic sealants (NIBE fact sheet available on request)

Roof CO₂ savings calculator (www.derbigum.be)

Estimated durability over 40 years

Download documents

Technical datasheet

DOP

Safety Data Sheet (SDS)