SBS FR SA BASE is a self-adhered Styrene-Butadiene-Styrene (SBS) elastomeric base ply membrane, with fire retardant additives for use in low-slope roofing. It is designed to provide a cleaner application, improve application speed and remove the need for torches, hot asphalt or bonding adhesives on the job site. Especially for job sites with limited access for special installation equipment or where using a propane torch or hot asphalt is undesirable or prohibited. SBS FR SA BASE is constructed with a durable reinforced fiberglass mat to ensure excellent dimensional stability.