Nordflex S (smooth) is a 4 mm thick, SBS modified bitumen waterproofing membrane reinforced with a nonwoven spunbond polyester carrier.
The top surface is covered with sand and the underside is covered with a printed burn off polypropylene film or a non-woven polypropylene (for torch or mop application).
Nordflex S is FM Approved, Miami Dade and Florida Building Code Approved. Nordflex S meets or exceeds the criteria for ASTM D 6164, Type I, Grade S.