610 Paragon® ULTRA SA Base is a durable and resilient, self-adhering SBS polymer modified bitumen membrane developed for use in multi-ply SBS roofing systems. This high-performance sheet material is ideal for use over various decks as the base or as interply sheet(s). 610 Paragon® ULTRA SA Base can be used in many Malarkey fire-rated, polymer modified roofing systems including self-adhering, torch or heat-welded, cold-applied, hot mopping asphalt or SEBS mopping asphalt systems.