Pro Base sheets are high-performance SBS-modified bitumen base plies specifically designed for use in Siplast liquid-applied Parapro^® and Paraflex^® systems, and ParaGREEN^™ vegetated roof and amenity systems. Pro Base sheets are approved for a maximum of 14 days of exposure prior to application of Parapro^® or Paraflex^®.

Pro Base has a unique top surface that is factory-coated with a proprietary Syntan^® acrylic coating and can be applied with hot asphalt or SFT Adhesive. Pro Base TG is torch-applied, with a back surface coated with a modified asphalt adhesive layer that has an embossed grooved pattern to provide optimum burn-off of the plastic film and maximize application rates. Pro Base SA has a back surface coated with a self-adhesive bitumen layer formulated for optimum adhesion in low-slope membrane applications, and is lined with a high-strength polyolefin release film.

Pro Base membranes can be outfitted with Siplast RoofTag roof asset identification.

Compatible substrates include: Concrete, wood, metal