Modified bitumen (Mod-Bit) roofing was developed in Europe during the 1960s as an alternative to built-up roofing. Despite the emergence of thermoplastics, such as PVC and TPO, it remained a popular choice for flat roofs because of its many superior benefits.

  1. Installer-Friendly is a notable advantage over BUR is ease of installation.
  2. Modified bitumen roofing systems are less complicated to apply, minimizing labor and the chances of workmanship error. But you do need an experienced roof consultant and a manufacturer approved roofing contractor to ensure a warrantiable and safe outcome.
  3. Mod-Bit is puncture-resistant compared to single-ply membranes. Modified bitumen roofing systems are impervious to sharp objects and collisions. They share BUR’s proven performance, protecting your low-slope roof against the elements and worker-caused harm.
  4. Low-Maintenance and exceptional durability ensures longevity with minimal maintenance. Surfaced or not, it can withstand the rigors of nature without easily sustaining damage.
  5. Installation Modified bitumen roofing can be installed using torch, hot asphalt, cold applied adhesives or peel-and-stick rolls. This makes mod-bit a very versatile system for any roof and/or environment.
  6. Mod-Bit surfacing provides UV protection and a weathering surface that can be either factory or field applied.
  7. Using a 2 ply Mod-Bit system for perimeter, projection and equipment flashings has long been the gold standard in roofing.

There are two types of Mod-Bit roofing membranes:

  • SBS polymer-modified bitumen membranes commonly are installed in hot moppings of asphalt (similar to BUR systems) or cold adhesive. Some SBS modified membranes are self-adhering; that is, they contain an adhesive backing.
  • APP polymer-modified bitumen membranes typically are heat-welded or torch-applied. Consumers should be cautioned that NRCA does not recommend torch-applying a modified bitumen membrane sheet directly to a wood deck.

Modified bitumen is manufactured in factories and sold in sheets. It is specially made to have equal thickness and physical properties throughout the entire sheet. A finished roofing membrane can have one or several bitumen sheets, but it can also have a combination of built-up roofing felts and one or more modified bitumen sheets.

Why Choose Bitumen Roofing?

Modified bitumen is recommended for commercial/industrial roofing because of the following features:

  1. Longevity – This type of roofing can last up to 20 years without the need for too much maintenance.
  2. Strength – Both types of modified bitumen roofing can withstand both high and low temperatures due to polymer modification. The number of sheets also improves durability.
  3. Waterproof – The adhesives used to attach modified bitumen provide protection against water damage.
  4. Energy efficient – This type of roofing material comes with an insulating layer that limits the flow of heat throughout the system.

Modified bitumen roofs keep your business protected from the elements and save you money on energy consumption.

If you want to learn more about modified bitumen roofing for your building, please schedule a meeting today. Fill out our contact form or give us a call… we would be happy to help you with all your commercial/industrial roofing needs within the GTA Area.