Modified Bitumen 

Modified bitumen roofing was invented in the 1960’s and its popularity has been growing since then. It has grown so much that at the moment, it’s considered to be popular among flat roofing materials for flat commercial roofs in the Ottawa Valley.

What is bitumen?

Modifiers are added to standard roofing asphalt to replace plasticizers removed during the distillation process. Bitumen is reinforced with fiberglass or polyester fiber matting in order to increase durability and strength. Low cost and numerous benefits of this particular solution indicate that modified bitumen will remain the leader in the market for some time to come.
Diverse types of these membranes are accessible. This allows you to find the solution that meets your needs perfectly. This versatility makes buying this kind of products confusing. A consultation from one of our experienced roofers will definitely help you determine which system is best for you.

 Modified Bitumen Roofing: Types

Modified bitumen, otherwise known as torch on or torch down roofing, is a popular option because of its outstanding durability and resilience. Two main types of these flat roofing solutions exist. Each has a set of benefits.

APP (Atactic Polypropylene Products).

APP bitumen has a granule-coated surface, which increases its resistance to wear. This is a good solution for commercial roofs with heavy traffic. A smooth option for those who don’t need additional protection exist. This type of torch on roofing can be used during reroofing or installing a new roof. Due to the material’s flexibility, it can be placed on any kind of flat roof, regardless of its size and configuration.

SBS (Styrene-Butadiene-Styrene).

SBS modified bitumen is strong. It can effectively resist various kinds of damage. Its accessible divergent colors, though black and white are popular. It protects your building and helps you improve its appearance. SBS bitumen may have different types of reinforcements which affect its durability and weight.
2-ply systems can have either APP or SBS as the second ply. They are easy to set up and even easier to maintain. The level of protection they offer is huge. They are incredibly weather-resistant. This is an important quality for commercial roofs in Toronto since long winters and occasional storms pose a serious hazard to roofs.