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Modified Bitumen Roof Membranes - APP Heat Welded

APP Heat Welded Membranes


IRO Ply SA-4

IRO PLY SA-4 is a smooth surfaced, 140 mils (3.5 mm) thick modified bitumen membrane formulated with high quality asphalt, modified with atactic polypropylene (APP) resins. Reinforced with a nonwoven polyester scrim.

BENEFITS:

  • Weather resistant for long-term protection.
  • Contains no asbestos.


SR MB A38P S

SR MB A38P S is a smooth surfaced nominal 3.8mm thick, premium APP (Atactic Polypropylene) modified bitumen roofing product specifically designed for heat-welded applications. Manufactured with polyester reinforcing that is saturated and coated with premium quality, APP resins for a durable and easily maintainable membrane. The top surface of the sheet is sanded and the bottom surface of the sheet is finished with a poly film that burns away during the heat weld application of the product.

BENEFITS:

  • Weather resistant for long-term protection.
  • Contains no asbestos.
  • Applicable Standard ASTM D 6222, Type I, Grade S.