Commercial Modified Bitumen Roof Replacement
Durable, Long-Lasting Commercial Roof Replacement
When it’s time to replace your commercial flat roof, modified bitumen roofing is a reliable and cost-effective option. Ferguson Roofing & Exteriors has been serving businesses in St. Louis for over 80 years, offering expert modified bitumen roof replacement for flat and low-slope roofs.
CONTACT US

What Is Modified Bitumen Roofing?
Modified Bitumen is a tough, asphalt-based roofing material perfect for flat and low-slope roofs. It’s specially designed to be more flexible and durable, so it stands up to extreme weather, UV rays, and the wear and tear commercial roofs often face.Â
The installation process involves layering the material to create a solid, waterproof barrier that keeps leaks and moisture at bay. Plus, it comes in a variety of colors, so you can choose one that complements your building while also helping to reduce cooling costs with its reflective properties.
Why Choose Modified Bitumen for Your Commercial Roof?
Modified Bitumen is a top choice for flat commercial roofs because of its durability, energy efficiency, and waterproofing. It’s built to handle heavy traffic, temperature swings, and severe weather. Its reflective properties also keep your building cooler, helping reduce energy costs.Â
The multi-layer design ensures excellent waterproofing, preventing leaks, especially in areas prone to ponding water. With proper maintenance, Modified Bitumen roofs can last 20 years or more, offering long-term value for your business.


Signs You Might Need a Commercial Flat Roof Replacement
If you notice any of the following issues, it may be time to consider a roof replacement:
- Cracks or splits in the membrane
- Blistering or bubbling in certain areas of the roof
- Visible leaks or water stains inside your building
- Ponding water that does not drain properly after rain
If your roof is showing these signs, it’s crucial to act quickly to prevent further damage and protect the integrity of your commercial property.
What Your
Neighbors
Are Saying
Fifteen years ago, we trusted Ferguson Roofing to install the roof on our commercial building, and they did an outstanding job. When it was time for a replacement, we knew exactly who to call.
David was great to work with!!! He explained everything so I would understand. Thank you!!
Very professional, Dave took the time to explain everything to me.
Ferguson Roofing did a great job for our home. They arrived on time and cleaned up when they were finished. We love our beautiful new roof.
Roofer showed up on time. Gave me a bid on the spot. Listened to my concerns. I've always had good service from Ferguson roofing and they did not disappoint today.
Chris was very personable and answered all my questions thoroughly. He even suggested alternative options and gave reasoning behind his professional opinion. We will be using their service in the future. They also moved our service date up and they were very detailed in accommodating our scheduling needs.
Ferguson Roofing crew did an excellent job replacing my roof. They had to work in extremely windy and cold weather but managed to stay professional and cleaned up my property to my satisfaction! The company has a very excellent reputation for quality work. I'm very happy with my new roof! Thank you Ferguson Roofing!!
The project manager, Chris Jezik, was great to work with. He listened to my issues and questions and explained everything that needed to be done in detail showing pictures of the visible issues with my roof. It was a pleasure working with him.
The dreaded roof problem was handled so thoroughly and thoughtfully. All situations explained. We had animals entering our attic. I called many companies and Ferguson responded. I am so grateful.
Jeff Houran was extremely thorough and explained our roof problem very clearly. He also looked at areas I had not thought of and identified things that would have caused us problems in the near future. His timely response to my call is also greatly appreciated. Great job!
We didn't realize we needed a new roof until water was leaking into our kitchen during a major rainstorm. Ferguson responded quickly, made major repairs, and replaced our roof and gutters with much better quality materials. They did a great job!
They did a great job and were very transparent through the entire project for cost, schedule, etc.
Alex Hendel and Adam Brinker went above and beyond to take care of us. Thanks for your commitment to good work, Ferguson Roofing!
Thank you, Ferguson Roofing, and Chris for your exceptional professionalism and honesty. He put my mind at ease.
Chris Jezik was very professional. Informed me what he was going to do. He inspected the roof. Told me he would contact me with more information via email. He did everything he spoke to me about. Great customer service.