620 Paragon ULTRA TG Base is a resilient and durable, SBS polymer modified bitumen membrane developed for torch-applied SBS roofing systems. It can be used in many Malarkey fire-rated, polymer modified roofing systems using a torch or heat welder. This high-performance material is ideal for use over various decks as the base or interply sheet in a multi-ply roof system. The base sheet may also be used in cold applied systems, hot mopping asphalt, or with SEBS mopping asphalt.