Modified Bitumen Roofing in Minnesota
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Commercial Roofing
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Cheri Engh
We were very pleased with the service and the speed of our roofing replacement from storm damage this spring. Tim, our adjuster was very good at keeping us updated and working with the insurance to make sure everything went smoothly. They did a very good job as far as putting down tarps and cleaning any area that needed it when they were done. I would definitely recommend their service and have already done so as well.
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Craig Kolb
Minnesota Roofing Company replaced the roof on my house and replaced some windows in my basement in April 2025. The communication I received was clear and timely. From receiving a quote to completing the work, the team at Minnesota Roofing was always quick to respond and kept the process moving seamlessly. The team was great to work with, and I will reach out to them again when I need the roof done on my garage.
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Lori Johnson
I would highly recommend this company, Chuck was great to work with, he didn’t just send his crew out to do everything he worked with us directly also and came back to take care of a couple of minor details after the roof was done. We liked the attention to detail!
Modified Bitumen
Modified Bitumen Roofing in Minnesota
Modified bitumen is a time-tested commercial roofing system that combines the reliability of traditional built-up roofing with the flexibility of modern polymer-modified materials. Particularly well-suited to Minnesota's temperature extremes, it performs consistently through freeze-thaw cycles and delivers strong resistance to foot traffic and weathering. Our team installs modified bitumen systems for commercial properties across the Twin Cities area, using application methods matched to each building's requirements.
Cold-Climate Flexibility: Polymer modification allows the membrane to flex through Minnesota's freeze-thaw cycles without cracking or losing adhesion — a key performance characteristic for roofs exposed to wide seasonal temperature swings.
Foot Traffic Resistance: Modified bitumen systems hold up well to rooftop access from maintenance personnel and mechanical equipment servicing, making them a practical choice for commercial buildings with frequent rooftop activity.
Layered Waterproofing: The multi-ply construction of a modified bitumen system creates overlapping layers of protection. If one layer is compromised, the system continues to perform — reducing the risk of sudden interior water infiltration.
Services
Modified Bitumen Installation
We install modified bitumen systems using torch-applied, cold-adhesive, and self-adhered methods depending on the building's requirements and site conditions. Each installation includes proper base sheet preparation, layered membrane application, and finished surfacing to protect the system from UV exposure and physical wear.
Modified Bitumen Repair
Modified bitumen repairs require compatible materials and correct application technique to maintain the integrity of the existing system. We identify blisters, seam separations, and areas of surface deterioration, then perform repairs that blend with the existing layers and restore watertight performance.
System Types
SBS Modified Bitumen
Styrene-butadiene-styrene modification gives the membrane rubber-like elasticity, making it highly effective in cold climates where materials must flex rather than crack. SBS is typically installed using cold adhesive or torch application depending on project requirements.
APP Modified Bitumen
Atactic polypropylene modification produces a harder, more UV-stable membrane suited to torch application. APP systems offer strong resistance to heat and UV degradation, making them a durable choice for commercial rooftops with significant sun exposure.
Granule-Surfaced Cap Sheet
The top layer of a modified bitumen system is typically finished with mineral granules that protect the membrane from UV radiation and physical wear. Granule surfacing also provides a degree of slip resistance and improves the system's overall durability over time.
Why Choose Minnesota Roofing Company Services?
When you work with our team, you are choosing a local company committed to protecting its reputation in the community. We believe in doing business the right way with honest communication, clear expectations, and full transparency. It all starts with a free, no pressure consultation where we provide a straightforward assessment and a detailed quote with no surprises. Call us at (612) 888-7663 to schedule today.
5.0 Stars
A+ Rating
BBB
FAQ's
Frequently Asked
Questions
We've provided answers to many of our most frequently asked questions. Have a different question for our team? We're happy to help! Just send us an email at info@mnroofingco.com.