Modified Bitumen

Curious about the benefits of a modified bitumen roofing system?

What is a Modified Bitumen Roof?

Modified Bitumen Systems (MBS): One of the fastest growing roofing materials in the industry, MBS is considered a “hybrid” roofing system. It combines the extreme tensile strength found in built-up systems with the high expansion and contraction features of a single-ply roof; MBS roof systems consist of a base sheet (or ply sheet) and a waterproofing sheet.

Modified bitumen material is composed of polymer modified bitumen (tar, asphalt or plant resin) reinforced with layers of fabric (glass fiber, polyester, or a combination of the two). Some of the surfacing components used for application with MBS include granules, gravel, acrylic coatings, aluminum coatings, ballast, and metals.

Compatibility of all materials within the system should be discussed with a Master Roofing Contractor like Hi-Rise Commercial Roofing to ensure a stress-free installation. The application process of MBS is relatively involved and requires the technical arrangement of several components. When you call on Hi-Rise for your commercial roofing needs, we will review all options with you to determine the best fit for your roofing needs.

Benefits of Modified Bitumen Roofing

  • Cost Effective: manufactured in bulk; low installation fees; low maintenance costs
  • Widely Available: easy for contractors to find; product selection is vast
  • Easy Maintenance: repairs are quick & simple; product adapts well to changes
  • Versatile: configures to any flashing or penetration detail; extensive color, style, & texture selection
  • High Performance/Durability:
    • UV resistant
    • Multi-layer insulation
    • Water resistant
    • Light-weight
    • Fire & up-lift performance
    • Long-term weathering
    • Superior tensile strength
    • Adapts to high/low-temperature fluctuations
    • Withstands high roof traffic

When you replace or modify an MBS roof, you have endless options. We can help customize a roofing solution that will fit your specific needs.

The Best in MBS Selection

You can trust the Hi-Rise team to provide you with professional and honest recommendations. All of our roofing technicians are trained and certified installers of the following roofing manufacturers: Firestone, Owens Corning, Carlisle, CertainTeed, Johns Manville, and Versico. 

We believe in the MBS products our partners provide because we have seen the longevity and customer satisfaction with their roofing materials. By partnering with manufacturers that are industry-recognized leaders in MBS applications, you can rest assured that you will receive the highest quality roofing system.

Call Hi-Rise Roofing Contractors today to see how we can repair or replace your modified bitumen roofing system. If it’s over your head, we’re on top of it!



Installation. Repair. Replacement.

Contact us today for a free estimate on your next roofing project. If it’s over your head, we’re on top of it!