
Flat roofs are everywhere in Cambridge — on triple-deckers, commercial buildings in Kendall Square, mixed-use properties in Central Square, and multi-family housing throughout the city. They require specialized materials and installation techniques that differ significantly from pitched roof systems. We install, repair, and maintain TPO, EPDM, and modified bitumen flat roof systems designed to handle ponding water, UV exposure, and the freeze-thaw cycling that breaks down flat roof membranes in the New England climate.
Flat roof problems often develop slowly and go unnoticed until water starts showing up inside the building. Membrane seams separate, flashing pulls away from parapet walls, and drainage systems clog with debris. Our maintenance and repair services catch these issues before they cause interior damage. For roofs that have reached the end of their service life, we provide full tear-off and re-roofing with modern membrane systems that outperform the original installation.
Installation of thermoplastic polyolefin membrane roofing with heat-welded seams that create a watertight barrier ideal for commercial flat roofs in Cambridge.
Durable rubber membrane roofing that handles temperature extremes and resists punctures, commonly used on Cambridge multi-family buildings and low-slope roofs.
Multi-layer asphalt membrane system with superior waterproofing and flexibility, well suited for Cambridge buildings with heavy foot traffic or rooftop equipment.
Proudly serving Cambridge, Somerville, Arlington, Belmont,
Watertown and Medford for 20+ years.
From full roof replacements to emergency storm repairs, we provide a complete range of roofing and exterior services tailored to the needs of Cambridge homes and commercial buildings. Every service is backed by licensed professionals who understand local building codes, New England weather patterns, and the specific challenges that come with maintaining properties in this climate.
Frequently Asked Questions
Roofing can be complex, and we’re here to provide answers to common questions. Here are some frequently asked questions from our clients.
Most roofing projects in Cambridge take between one and three days for a standard residential home. Larger multi-family buildings like triple-deckers may require additional time depending on the scope of work, weather conditions, and whether structural repairs are needed beneath the surface material. We always provide a specific timeline during your free estimate so there are no surprises.
Common signs include missing or curling shingles, granule buildup in your gutters, visible daylight through the attic, water stains on interior ceilings, and sagging along the roofline. In Cambridge, freeze-thaw cycling and nor'easter wind damage accelerate wear on asphalt shingles especially on older homes built before modern building codes were adopted.
Yes, most roofing work in Cambridge requires a building permit through the Cambridge Inspectional Services Department. This includes full replacements, structural modifications, and certain repair scopes. We handle all permit applications and ensure your project meets Massachusetts building code 780 CMR requirements so you stay fully compliant.
An asphalt shingle roof in the Cambridge climate typically lasts between 20 and 30 years depending on material grade, ventilation quality, and exposure to coastal weather patterns. Architectural shingles tend to outperform three-tab options by five to ten years. Regular maintenance and prompt repairs after storm events can help maximize the full lifespan of your investment.
Absolutely. If your roof was damaged by a nor'easter, hail, or high wind event, your homeowners insurance policy may cover part or all of the repair or replacement cost. We work directly with insurance adjusters, provide detailed damage documentation, and help Cambridge homeowners navigate the claims process from start to finish.
We recommend scheduling a professional roof inspection at least once per year, ideally in the spring after winter weather has passed. Cambridge homes take a beating from ice, snow, and freeze-thaw cycles each season, and catching small issues early prevents costly repairs down the road. Post-storm inspections are also a smart move after any major weather event.
The three most common flat roof materials we install in Cambridge are TPO, EPDM rubber, and modified bitumen. Each has different strengths depending on your building use, budget, and long-term maintenance preferences. We help commercial and multi-family property owners choose the right system for their specific flat roof application.
A properly installed and maintained flat roof typically lasts 20 to 30 years depending on the membrane type. TPO and EPDM systems in Cambridge need to withstand freeze-thaw cycling, ponding water, and UV exposure during summer months. Regular inspections and prompt repairs are the best way to maximize the full service life of any flat roof system.
Ponding water is one of the most common flat roof problems in Cambridge, especially after heavy rain events. It is usually caused by inadequate drainage, sagging deck sections, or clogged drains and scuppers. We address the root cause during installation or repair to ensure proper water flow and prevent premature membrane deterioration.
Yes, we handle flat roof repairs, re-coatings, and full replacements on commercial and multi-family buildings throughout Cambridge. Whether you manage a Kendall Square office building or a Central Square mixed-use property, our crew has the equipment and experience to work on flat roofs of all sizes and configurations.
Need flat roof work on your Cambridge building? Whether it is a small repair or a full replacement, contact us for a free assessment and honest recommendation.
We pride ourselves on delivering great results and experiences for each client. Hear directly from home and business owners who’ve trusted us with their Roofing needs.

They replaced our entire roof on our triple-decker in East Cambridge and the crew was professional from start to finish. They handled the permit, cleaned up every day, and the new roof looks incredible. Highly recommend them to anyone in the area.
— Cambridge Homeowner

After a bad nor'easter tore shingles off our roof, they were out within a day to tarp and assess the damage. They walked us through the insurance process step by step and made the whole experience far less stressful than we expected. Excellent work.
— Somerville Property Owner

We called about an ice dam that was causing leaks into our second floor. They removed it safely the same week and gave us a clear plan to prevent it from happening again. Fair price, honest crew, and they actually showed up when they said they would.
— Arlington Homeowner
Ready to hear more about expert services at Royal Oak Cambridge Roofing?
Contact us today to receive a detailed, no-obligation quote.
We share helpful articles about to answer common questions, explain options, and give a better sense of what to expect. Whether you’re taking care of your own home or responsible for a larger property, these resources are meant to make planning and decision-making a little easier.
6 Forest St, Cambridge, MA 02140
Hours of Operation Monday: 7:00 AM – 6:00 PM Tuesday: 7:00 AM – 6:00 PM Wednesday: 7:00 AM – 6:00 PM Thursday: 7:00 AM – 6:00 PM Friday: 7:00 AM – 6:00 PM Saturday: 8:00 AM – 2:00 PM Sunday: Closed: 24/7 Emergency Roof Repair Available