By Dez Duran-Lamanilao

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Image source: Bitumen Membrane Roofing

What is Modified Bitumen Roofing?

Modified Bitumen (MB) roofing, or “torch down roofing,” is asphalt-based and is designed for buildings with flat or low-slope structures. Compared to its close cousin Built-up-Roof (BUR), modified bitumen allows designers and installers a wider array of options. This roofing alternative is increasingly becoming popular because it not only offers durability, but it usually requires low-maintenance. Generally, the modified bitumen roof average lifespan is around 20 years or more, depending on the extent of wear and tear. Proper installation by experts will definitely prolong its lifespan.

Modified Bitumen Roofing Cost

The average cost of a modified bitumen roofing is from $2.73 to $5.21. Thus, it costs more than traditional roofing options that make use of asphalt. Despite the initial cost MB requires, industrial and commercial property owners alike are willing to spend more bucks if this will mean stronger protection for their buildings. Even residential owners whose properties have flat roofs are beginning to see the benefits of modified bitumen roofing.

Benefits of Modified Bitumen Roofing

Here are the key advantages of using modified bitumen roofing:

  1. One of the most durable types of roofs because of its high-tensile strength, and has long been proven as such for years now
  2. A wide range of installation options (e.g. hot processing, self-adhesive sheets, cold-applied adhesives)
  3. Can be seamless, regardless of the manner of application
  4. Requires little or low maintenance and easier to repair
  5. Extremely tear-resistant, since it makes use of a combination of fiberglass and polyester reinforcement layers
  6. Flexible – can expand and contract in different temperatures without losing its appearance or shape

One key factor to ensure a longer lifespan for your roof is to make sure that experienced contractors do the installation, whether it is a 2-ply modified bitumen roofing system or a 3 ply one. Every roofing option has its own advantages and disadvantages, but talking to the right contractor can make a difference in preserving your property for longer periods of time.

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