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What is a Modified Bitumen Roofing System?

Mar 26, 2019

Commercial and industrial properties use a variety of different roofing systems. Among the best (and most popular) is a modified bitumen roofing system. So, what is this type of commercial roofing system? And how can it benefit your commercial property?

Modified Bitumen Roofing

As mentioned, modified bitumen roofs remain among the top choice for flat and low-sloped roofing. Modified bitumen roofing in Toronto, Ontario is composed of polymer modified bitumen material that is reinforced with one or more layers of fabric. It can be installed with a variety of application methods including cold applied, heat weld, self-adhered, mechanically fastened, and hot applied applications.

The two types of modified bitumen membranes used in commercial and industrial roofing are:

(1) Atactic Polypropylene (APP) – This type of modified bitumen roofing is known to give asphalt a plastic-like quality. APP is made up of a thermoplastic polymer and is generally applied using a propane-fueled torch. Some APP sheets can also be installed with cold applied adhesives.

* An added advantage of an APP roofing system is that it generally stands up longer and better to sunlight and heat than an SBS roofing system.

(2) Styrene Butadiene Styrene (SBS) – This type of modified bitumen will give a commercial or industrial roof a rubber-like appearance that is durable and highly withstanding to harsh weather. SBS is most commonly installed through cold application, or by heat welding.

* An added advantage of an SBS roofing system is that it’s more resilient to stretches, tears and punctures than an APP roofing system.

Modified Bitumen Roofing in Toronto

Why choose modified bitumen for commercial roofing for your commercial property? As premier Toronto based commercial roofing contractors with expertise in low-slope roofing, we know what it takes to have a highly durable, and more importantly, safe roof over your head.

Here’s why modified bitumen roofs will benefit your low-sloped, asphalt based roof:

Longevity. It can last up to 20 years without the need for too much maintenance.

Durability. Both APP and SBS modified bitumen roofing can withstand extreme weather

conditions such as high and low temperatures, high wind gusts, ice, rain and heavy snow.

Water resistancy. The adhesives used to attach modified bitumen provide ultimate protection

against water damage.

Sustainable to the environment. Modified bitumen roofing systems are made with an insulating layer that limits the flow of heat throughout the system, therefore, reducing energy demand as well as monthly heating and cooling costs.

Trust the Experts at Crown

A modified bitumen roofing system will keep your property protected from the extreme and rather unpredictable weather patterns we so often experience across the GTA. To learn more about how a modified bitumen roof can benefit your business, contact the experts at Crown Industrial Roofing.

With over 40 years of commercial roofing experience, you can be confident you’ll receive the highest quality materials for your commercial property. If you want to learn more about modified bitumen roofing in Toronto, contact one of our certified commercial roofing contractors today.

You can also schedule a free roofing inspection here.