3-1 SOPRASMART ROCK is a high performance panel of an SBS-modified bitumen base membrane, SOPRAROCK mineral wool board, and polyisocyanurate insulation board for use in approved multi-ply membrane assemblies. To create 3-1 SOPRASMART ROCK high density mineral fiber board is combined with polyisocyanurate insulation board and is factory laminated to an SBS modified bitumen base ply reinforced with a tough, dimensionally stable non-woven polyester mat creating a time and labor-saving solution. The topside is surfaced with polyolefin burn-off film to optimize head welding application or silica sand to aid with cold adhvesive application.

Installation

3-1 SOPRASMART ROCK is installed via mechanical fastening, approved adhesive or hot asphalt following manufacturer specifications. When installing via mechanical fastening, 3-1 SOPRASMART ROCK is fastened through the patented DUO SELVEDGE lap following the details for the uplift pressure required. Subsequent approved inter-ply or cap ply membranes are applied to 3-1 SOPRASMART ROCK via heat welding. Refer to the SOPREMA SBS Roofing Guide for additional application guidelines.