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Modified Bitumen & BUR Roofing in Arizona
Flat and low-slope roofs require specialized systems that deliver durability, waterproofing, and long-term value. At The Arizona Roofer, we provide expert installation and repair services for Modified Bitumen (Mod Bit) and Built-Up Roofing (BUR) systems — proven technologies trusted for commercial and residential flat roofs across the Valley.
We install and service Mod Bit and BUR roofs that deliver superior performance and leak protection for Arizona’s demanding environment.
Modified Bitumen and BUR systems are engineered for longevity under extreme weather. These asphalt-based membranes are ideal for Arizona buildings exposed to intense sun, heavy rains, and temperature fluctuations. We apply multiple layers of protection — including cap sheets, felts, and reflective coatings — to create a seamless, watertight barrier.
Whether you’re managing a commercial building or need a durable solution for a residential flat roof, our systems provide proven performance. We also offer expert repair and restoration services for existing Mod Bit and BUR installations.
3 Things to Look for in a Flat Roofing Contractor
Flat roofs demand more than standard shingles — they require precision and product expertise.
Mastery of Layered Flat Roof Systems
Look for a roofer who understands the complexities of hot mop, torch-down, and self-adhered systems.
Local Experience with Ponding Water Issues
Arizona rain events can stress flat roofs — choose a contractor who addresses drainage and slope corrections.
Proven Product Selection & Application
The right materials matter. An expert roofer will guide you to the best multi-ply or Mod Bit system for your roof.


FAQs: BUR & Modified Bitumen Roofing in Arizona
What is the difference between BUR and Modified Bitumen?
BUR uses multiple layers of asphalt and fabric felts; Mod Bit is a membrane reinforced with polymers for added flexibility and strength.
Are these systems good for Arizona’s flat roofs?
Yes — they’re ideal for desert climates, offering excellent heat resistance, waterproofing, and lifespan.
How long do BUR and Mod Bit roofs last in Arizona?
With proper installation and maintenance, these systems can last 20–30 years or more.
Can these systems be coated for extra UV protection?
Absolutely. We often apply reflective coatings to reduce heat gain and extend roof life.
Do you repair existing flat roofing systems?
Yes — we provide repairs and maintenance for BUR, Mod Bit, and other flat roof materials.
What kind of buildings benefit most from these systems?
Commercial buildings, garages, multifamily units, and flat-roofed homes are all excellent candidates.
More Information About BUR & Mod Bit Roofing
Built-Up and Modified Bitumen systems are among the most trusted flat roofing options. They provide multiple layers of waterproof protection, and when combined with coatings, they resist UV degradation — a must in Arizona’s climate.
These systems require experienced application and an eye for detail. Our team handles everything from slope correction and insulation to installation and coating.
About The Arizona Roofer
With 40+ years of commercial and residential roofing experience, The Arizona Roofer has installed and serviced hundreds of BUR and Modified Bitumen roofs. We use only proven, Arizona-ready materials and ensure every detail — from deck prep to cap sheet — is handled with care and precision.
