Modified Bitumen Roof Repair and Installation in Philadelphia, PA

roofer installing a modified bitumen roof

Durable Protection for Demanding Commercial Environments

Modified bitumen is one of the most trusted flat roofing systems for commercial buildings, offering a time-tested blend of strength, flexibility, and weather resistance. At Umbrella Roof, we provide expert modified bitumen roof repair and installation in Philadelphia, PA, and surrounding areas. Whether you’re dealing with cracking, blistering, or a roof that’s simply aged out, we deliver dependable repairs and seamless installations using high-quality materials and precise workmanship. Ideal for warehouses, office buildings, medical facilities, and more, modified bitumen systems offer excellent performance in both hot and cold climates—and we’re here to make sure yours is built or repaired to last.

Call 215-774-2950 today to schedule a roof inspection or request an installation estimate.

Why Modified Bitumen Roofing?

Modified bitumen combines asphalt with polymer modifiers and reinforcing fabrics to create a multi-layered membrane that holds up against UV rays, thermal expansion, foot traffic, and standing water. It can be installed using torch-down, cold adhesive, or self-adhering methods, and is especially effective on low-slope or flat commercial roofs. We begin with a thorough assessment of your current roof and building needs. Whether you’re repairing problem areas or replacing an outdated system, we tailor the installation to your property’s structure, climate conditions, and budget.

A Full Range of Modified Bitumen Roofing Services

Before and after installation, we take care to ensure performance, code compliance, and minimal business disruption. We can also provide guidance on other potential options if you’re looking for information on the best commercial roofing or flat roofing solutions for your needs. Our full range of services includes:

  • Roof inspections and condition assessments
  • Leak detection and membrane patching
  • Full modified bitumen system installation (torch, cold, or self-adhered)
  • Reinforced base and cap sheet application
  • Drainage integration and flashing repairs
  • Roof insulation upgrades and moisture barrier installation
  • Maintenance plans and emergency repairs

We use trusted materials from top manufacturers and follow all safety protocols to ensure a clean, efficient, and long-lasting result.

Ready for Long-Term Roofing Confidence?

If your commercial roof needs attention, modified bitumen may be the right solution. Trust Umbrella Roof for expert modified bitumen roof repair and installation in Philadelphia, PA, and surrounding areas. Call 215-774-2950 now to speak with a roofing specialist and protect your building with proven durability.

Most Recent Pins (9)

ED MCDEVITT
The Umbrella Roof team removed a damaged flat roof at a commercial garage in Souderton, Pennsylvania. They repaired roof joists and decking before installing modified bitumen roofing material for long-term durability and protection.
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ED MCDEVITT
Umbrella Roof installed a flat and mansard roof in the Overbrook neighborhood of Philadelphia, Pennsylvania. The team used torch-applied Firestone white granulated roofing for the flat section and GAF Timberline charcoal black shingles for the mansard portion. This project combined two roofing systems for full residential coverage.
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ED MCDEVITT
Umbrella Roof installed a Firestone Modified Bitumen white granulated roof in Somerton, Philadelphia, PA. This roofing system offers a durable surface designed to handle varying weather conditions while maintaining low maintenance requirements over time. The installation supports long-term roof performance for residential or commercial structures.
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ED MCDEVITT
Umbrella Roof installed a Firestone Modified Bitumen torch-applied roof system with a chain pull skylight on a home in Southwest Philadelphia, Pennsylvania. This setup supports long-term roofing protection while allowing natural light through the new skylight addition.
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ED MCDEVITT
Umbrella Roof completed a flat roof replacement and shingle mansard roof replacement in Clifton Heights, Pennsylvania. The team removed the existing materials and installed new roofing systems to improve structure and weather resistance. This work addressed both flat and sloped roof sections on the property.
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ED MCDEVITT
Umbrella Roof installed a new flat roof in University City, Philadelphia. The team also added 5k gutters along the front porch and applied new fascia capping around the structure's perimeter. This project improved water management and protected exterior edges from weather exposure.
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ED MCDEVITT
Umbrella Roof installed a Timberline HDZ GAF shingle roof in Weathered Wood on a home in Philadelphia, Pennsylvania. The team repaired roof decking and framing, tied in a modified bitumen flat roof on a dormer, and added new CertainTeed siding to the dormer walls for structural updates.
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ED MCDEVITT
Umbrella Roof removed damaged flat roofing in Upper Darby, Pennsylvania. The team replaced deteriorated decking and roof joists, installed tapered insulated panels, edge metal, and new drainage. They added Firestone modified bitumen roofing and extended material onto a slope. The project included shingle replacement on the mansard roof's rear and GAF Timberline HDZ installation.
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ED MCDEVITT
Umbrella Roof replaced a skylight and installed a new roof drain on a residential roof in Philadelphia, Pennsylvania. The team removed an old skylight and satellite dish, built a new skylight curb, installed a dome-style skylight with hatch, applied modified bitumen roofing, and sealed all edges with synthetic tape and roof cement.
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