High performance base sheet panel composed of SBS modified bitumen membrane with a non-woven polyester reinforcement, factory-laminated on a asphaltic board (SOPRABOARD). The surface is sanded.

Benefits

Optimal adhesion to Duotack due to the speciality designed underface of the semi-rigid asphaltic panel.

Thin flexible panel that perctly fits the shape of wooden decks and membranes during roofing.

Waterproofing ensured by DUO SELVEDGE and SOPRALAP technologies.