Flat roofing - Touchdown APP

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 Generally,  APP modifiers impart a "plasticized" quality to asphalt, and SBS  modifiers impart a "rubberized" quality to asphalt.SBS polymer-modified  bitumen membranes commonly are modified membranes that are self  adhering; that is, they contain an adhesive backing.

 Polyglass'  SBS (Styrene-Butadiene-Styrene) modified asphalt, roofing membranes are  reinforced with polyester and/or fiberglass mat offering superior  flexibility, excellent tensile strength and dimensional stability.  Polyglass' SBS modified bitumen membranes are meant to be part of a  multi-ply roof system. 

 APP-modified bitumen is a roofing membrane. Contractors typically apply these membranes to asphalt with a torch.  The process looks a little similar to mopping, as the contractor must  spread the membrane across all sections of the roof. Once applied, you  can choose to leave the roof's surface smooth or add granules. APP  membranes are applied using a torch. The back of the sheet has extra  asphalt on it which, when heated, bonds to the substrate. This was  especially convenient for the smaller, more cut up roofs because less  room and equipment is needed on site to torch-apply a membrane than is  necessary for application using hot bitumen. APP polymer-modified  bitumen membranes typically are heat-welded or torch-applied. Generally, APP modifiers impart a "plasticized" quality to asphalt,  he app membrane full  form is Atactic Polypropylene Membrane. The much more prominent  waterproofing material for cement rooftops and moderate-slope terraces  is APP membrane. With the aid of a flame, the APP membrane is put on bitumen. APP membranes can be used for more than simply roofing