
Modified Bitumen Roofing in Delaware & Hawaii
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Commercial Services
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Sarah Jenkins
"From the first call to the final cleanup, the process was seamless. They provided a same-day estimate and had our new roof installed just a few days later. The crew was fast, professional, and left our property spotless. Highly recommended!"
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David Chen
"Our home has a very complex roofline, and we were concerned about finding a team with the right expertise. Three Son's handled the job with incredible skill and attention to safety. I wouldn't trust anyone else with a project this important."
Modified Bitumen
Modified Bitumen Roofing in Delaware & Hawaii
A proven and resilient choice for flat or low-slope roofs, Modified Bitumen offers multi-layered protection. Three Sons Roofing & Development installs these durable systems, providing a tough, weather-resistant surface ideal for withstanding coastal conditions.
Exceptional Durability: This roofing system is known for its high tensile strength and resistance to punctures and tears, making it a robust choice for roofs that may experience foot traffic or falling debris.
Superior Waterproofing: The multi-ply, redundant design of a Modified Bitumen roof creates an exceptional waterproof barrier, offering reliable protection against heavy, wind-driven rain.
Adaptable to Weather: The material is engineered to expand and contract with temperature fluctuations, which helps prevent cracking and ensures a long service life in both hot and cool climates.
Service Highlights

Modified Bitumen Installation
A great choice for low-slope or flat roofs, our Modified Bitumen installation provides a durable, multi-layered roofing system. This material offers excellent waterproofing and resistance to foot traffic and punctures, making it a reliable and long-lasting solution for commercial and residential properties.

Modified Bitumen Repair
We specialize in repairing Modified Bitumen roofs to address issues like blisters, seam failures, or surface damage. Our expert repair techniques restore the integrity of the membrane, effectively stopping leaks and extending the service life of your existing flat roof.

Roof Maintenance and Inspection
Proactive care is the key to a long-lasting roof. Our comprehensive maintenance and inspection service is designed to identify and address potential issues before they become major problems, ensuring your roof remains in optimal condition and protecting your property year after year.
Types
The Advantage of a Multi-Ply System
The exceptional durability of Modified Bitumen is due to its multi-ply, reinforced design, making it the premier choice for demanding commercial roofing environments.
🔗 Engineered for Toughness
This system is renowned for its outstanding resistance to punctures and tears. By blending layers of rubber-modified asphalt with a strong reinforcing fabric (like polyester or fiberglass), it creates a membrane that can withstand heavy rooftop equipment, regular foot traffic from maintenance crews, and the impact of dropped tools.
🔗 Seamless Sealing for Complex Roofs
For commercial roofs crowded with vents, pipes, skylights, or drains, Modified Bitumen is an ideal solution. Its flexible and robust nature allows our technicians to expertly form the material around every penetration, creating a durable, completely watertight seal at your roof’s most vulnerable points.
🔗 Flexible Installation Options
Modern Modified Bitumen systems offer a range of application methods, allowing us to select the safest and most effective technique for your specific building. We can utilize cold-applied adhesives to avoid open flames, or apply the material using the traditional heat-welded (torch-down) method, ensuring the ideal installation for your property.

FAQ's
Frequently Asked
Questions
Here you’ll find a compilation of the most frequently asked questions. If there’s something you want to know which isn’t here, please send an email to office@threesonsroofing.com.
What makes modified bitumen a good flat roof choice?
It’s durable and flexible. Oahu’s heat won’t make it brittle, and Delmarva’s freeze-thaw cycles won’t crack it.
How long can a modified bitumen roof last?
With regular inspections, 20 years or more. Salt air in Oahu may shorten lifespan slightly, while snow loads in Delmarva mean extra care extends its service.
Is modified bitumen easy to repair?
Yes. In Oahu, small heat cracks can be patched. In Delmarva, storm-torn seams can be resealed without replacing the whole roof.
Our Location
Serving Hope, Rhode Island
Roof Co. Roofing looks forward to helping with your residential or commercial roofing projects in RI. Whether it be Roof Repair, Roof Replacement, Storm damage or anything else. We strive to meet the needs of all of our customers and provide 100% customer satisfaction.

