• Modified Bitumen Roofing Systems are created when a polymer is added to asphalt to extend temperature limits and increase the pliability of asphalt.
  • There are two kinds of Modified Bitumen
    • Styrene Butadiene Styrene (SBS) – this type of modified bitumen roof is installed using cold adhesive or hot moppings of asphalt and can come with adhesive backing. Modified bitumen SBS has a rubber-like appearance.
    • Atactic Polypropylene (APP) – is a thermoplastic polymer that is either heat-welded or torch-applied and gives asphalt a plastic-like quality.
  • Both types of Modified Bitumen roofing can withstand both high and low temperatures due to polymer modification.
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features
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Benefits
  • Modified Bitumen holds up well under UV exposure and can last up to 20 years with minimal maintenance.
  • The adhesives used to attach Modified Bitumen provide protection against water damage.
  • Modified Bitumen comes with an insulating layer that limits the flow of heat throughout the system helping to reduce energy consumption.
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