Modified Bitumen Roofing

Modified Bitumen Roofing

Modified Bitumen is a common roofing system. It is popular in modern day roofing. In fact, it takes up about twenty percent of the commercial roofing market. This material is a development of asphalt roofing. In fact, it is made from asphalt and different rubber materials.

Here are some benefits of modified bitumen

  • It lasts for a long time
  • It is durable
  • Inspection is simple
  • It is simple to repair
  • Its surface does not require coating

Applying Modified Bitumen

Bitumen uses a two-ply system. It comes in rolls. These rolls overlap each other when applied. When there are a few methods for applying it.

Heated Application

  • Torch – The seams of modified bitumen can be heated with a torch to seal them.
  • Hot Mop – Another method is to use a hot mop to seal the seams.

Cold Application

Another method is to not use heat at all. Instead, self-adhesive strips of membrane can be put together without any heat at all.

Types of Modified Bitumen

SBS Modified Bitumen – SBS stands for Styrene Butadiene Styrene. This type of material is extra flexible. It works better with expansion and contraction.

APP Modified Bitumen – APP stands for Attactic Polypropylene. The main feature of APP modified bitumen is that it lasts longer and ages better.

Of the two, SBS is the more popular option.

A professional roofer should install or repair this material. There are many things that could go wrong when an amateur tries to repair their own roof. This is especially true if you are working with torches or hot mops. At Summit Commercial Roofing we are flat roof experts. If your building’s roof has a modified bitumen roof that needs repairs, let us give you a quote. We have competitive pricing and always do quality roofing work that we stand by.


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