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SOPRALENE® 250 SP 4.0 SKU: 00603

SOPRALENE® 250 SP 4.0 SKU: 00603

SOPRALENE 250 SP 4.0 is an SBS-modified bitumen base ply for use in approved multi-ply membrane and flashing assemblies. SOPRALENE 250 SP 4.0 is composed of a proprietary formulation of elastomeric styrene-butadiene-styrene (SBS) polymer modified bitumen and is reinforced with a tough, dimensionally stable non-woven polyester mat. The topside is surface with fine mineral aggregate and underside is surfaced with polyolefin burn-off film to optimize heat welding.

Product Properties

  • ASTM ASTM D6164
  • Component Base
  • Installation Method Heat Welded
  • Reinforcement Polyester
  • Thickness 160 mils (4.0 mm)
  • Topside Sanded
  • Underside Burn Off Film

Installation

Prior to installation, unroll SOPRALENE 250 SP 4.0 onto the roof surface and allow to relax. Position SOPRALENE 250 SP 4.0 in desired position and back roll the product. SOPRALENE 250 SP 4.0 is then heat welded to approved substrates. Subsequent approved inter-ply or cap ply membranes are applied to SOPRALENE 250 SP 4.0 via cold adhesive. Refer to the SOPREMA SBS Roofing Guide for additional application guidelines.

 

Testing & Approvals

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Parkland Hospital – Dallas, Texas

The new hospital featured flat rooftops at multiple levels that all needed to be made watertight for decades to come. The roofing system needed to be designed in a way that accounted for a helipad, consistent rooftop traffic, extensive rooftop equipment, lightwells and various utility platforms. A lot stood in the way of Anchor Roofing, the installer, but the meticulous planning for the project meant that all contingencies had been considered by the time application of the waterproofing system began.

San Francisco Airport – San Francisco, California

San Francisco International Airport is the 13th largest airport in the United States featuring four modern runways. The new International Terminal opened in 2000 and had the distinction of being the largest terminal building ever built in North America. SOPREMA was able to provided a cost-competitive, UL Class A system with a 20-year labor and material warranty.