Commercial EPDM Roof Installation and Replacement in New Hampshire
Queen City Roofing installs and replaces commercial EPDM rubber roofing systems for flat and low-slope buildings throughout New Hampshire. EPDM is a flexible and proven membrane roofing option designed to provide dependable protection in changing New England weather.
Our experienced roofing team provides complete EPDM systems for commercial properties, multifamily buildings, warehouses, offices, retail locations, schools, industrial facilities and new construction projects.
With more than 20 years of roofing experience, Queen City Roofing delivers professional installation, quality materials and trusted roofing systems.
Fully Insured • Fully Certified Installers
• Commercial and Residential Low-Slope Roofing • Serving New Hampshire

What Is EPDM Rubber Roofing?
EPDM stands for Ethylene Propylene Diene Monomer. It is a durable synthetic rubber membrane commonly installed on flat and low-slope roofs where asphalt shingles are not appropriate.
Depending on the building and roof design, an EPDM system may be fully adhered, mechanically attached or ballasted.
EPDM roofing systems can be Fully Adhered ( glued down ), Mechanically Attached ( Screws and Transition bars ), or Ballasted, ( uses loose heavy stones or gravel ), depending on your building’s structure and performance needs.
EPDM is available in large sheets that are carefully secured and sealed around roof edges, drains, walls, vents and other penetrations. When properly designed and installed, the complete membrane system provides flexible, long-term protection for commercial and residential roofing projects.
What Are the Benefits of EPDM Rubber Roofing in New Hampshire?
EPDM rubber roofing is a durable low-slope roofing option that performs well in New Hampshire’s changing weather conditions. The flexible membrane is designed to handle temperature swings, freeze-thaw cycles, snow, ice, and prolonged moisture exposure while providing dependable protection for flat and low-slope roof areas.
EPDM is commonly used on commercial buildings, multifamily properties, home additions, porches, garages, and other roof areas where traditional asphalt shingles are not appropriate. Its large membrane sections can help reduce the number of seams, and when properly installed, EPDM provides reliable long-term water resistance.
For New Hampshire property owners, EPDM is especially useful because it remains flexible in cold temperatures and can perform well on properly designed roofs exposed to snowmelt, heavy rain, and seasonal temperature changes.

Durable Rubber Roofing Systems for Flat and Low-Slope Commercial Buildings
EPDM is commonly used on roofs that do not have enough slope for traditional asphalt shingles. The appropriate roofing system depends on the roof deck, drainage, existing construction and overall building design.
Queen City Roofing installs EPDM roofing on qualifying:
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Commercial and light-industrial buildings
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Condominium and apartment properties
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Offices and retail buildings
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Schools, churches and community buildings
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Dormered Cape style homes
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Other flat or low-slope roof areas
Every property should be evaluated before EPDM is recommended. Proper drainage, insulation, flashing and roof-edge details are just as important as the membrane itself.
For larger buildings and multi-system projects, learn more about our commercial roof replacement services in New Hampshire

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Benefits of an EPDM Roofing System
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EPDM has been used on flat and low-slope roofs for decades because it offers several practical advantages for New Hampshire commercial buildings and qualifying residential roof areas.
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Flexible Membrane
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EPDM remains flexible as temperatures rise and fall, helping the membrane accommodate the seasonal expansion and contraction common in New Hampshire’s climate.
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Suitable for Complex Roof Areas
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The membrane can be carefully installed around drains, walls, curbs, vents, skylights and other roof penetrations when the complete system is properly designed and detailed.
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Proven Low-Slope Roofing Material
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EPDM is a widely used roofing material with a long history of use on commercial buildings, multifamily properties and residential low-slope roof sections.
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Repairable Roofing System
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Although Queen City Roofing focuses on complete installation and replacement, properly installed EPDM systems can often be professionally serviced by qualified membrane-roofing contractors during their useful life.
Our EPDM Roofing Process
1. Roof Evaluation
We carefully evaluate your existing roof, including its slope, pitch, drainage, roof deck insulation, all penetrations, and property access, to determine whether an EPDM roofing system is the right solution.

2. Roofing-System Planning
Our sales team explains the proposed project details, the type of membrane, insulation, attachment methods, and other important installation considerations such as traffic flow and access points.

3. Professional EPDM Installation
The roof surface is prepared, and the EPDM system is installed in accordance with manufacturer specifications and industry best practices. Special attention is given to seams, edges, drains, walls and roof penetrations.

4. Final Inspection and Cleanup
After installation, we inspect the completed roofing project and important roof details, clean the work site. We also offer proactive maintenance programs to protect your commercial roof investment year-round.



We had our roof replaced this week. Queen City Roofing was a pleasure to work with from start to finish. The quoting process, communication and execution were flawless.

We are an 8 unit condo building. Mike and his team were highly organized and very efficient. The quality of work was outstanding.

I had an excellent experience with the Queen City Roofing team, competitive pricing and very quick/easy to plan. Highly recommend, they did an excellent job.

I like dealing with a local family owned business. The price was competitive and the communication was excellent.
Why Choose Queen City Roofing for EPDM Roofing?
Flat and low-slope roofing requires different materials and installation methods than traditional asphalt shingle roofing. Queen City Roofing evaluates the complete roof assembly including the roof deck, insulation, drainage, penetrations, edges and the existing construction, then recommends a system based on the property’s actual needs and requirements.
Commercial property owners, condominium associations, builders and homeowners choose Queen City Roofing for:
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New EPDM roof installation
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Complete EPDM rubber roof replacement
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Commercial and multifamily roofing projects
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Qualifying residential low-slope roofing areas
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Insulation and cover-board planning
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Detailed work around drains, walls, curbs, and penetrations
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Fully insured roofing operations
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Manufacturer warranty options for qualifying systems
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Clear written proposals and project communication
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Financing available for qualifying projects
With more than 20 years of roofing experience, our team provides complete roofing systems designed for the property—not a one-size-fits-all membrane installation.
Frequently Asked
EPDM Rubber Roofing Questions
Is EPDM roofing only used on commercial buildings?
No. EPDM is commonly installed on commercial buildings, condominium properties and multifamily structures, but it may also be appropriate for residential additions, porches, garages, dormers and other flat or low-slope roof sections where asphalt shingles should not be installed.
What is the difference between EPDM and TPO roofing?
EPDM is a flexible synthetic rubber membrane that is generally black, while TPO is a thermoplastic membrane that is commonly white or light-colored and uses heat-welded seams. The best system depends on the building design, roof slope, drainage, existing construction, energy goals and project requirements. Learn more about our TPO membrane roofing systems.
Can EPDM be installed over an existing roof?
Sometimes. but only after the existing roof and underlying assembly have been evaluated. Trapped moisture, damaged decking, deteriorated insulation, existing roof layers and local building-code requirements can affect whether a new membrane may be installed over the current system.
How long does an EPDM roof last?
The useful life of an EPDM roof depends on membrane thickness, installation quality, roof design, drainage, weather exposure and maintenance over time. A properly designed and professionally installed system can provide dependable long-term protection, but no single lifespan applies to every roof.
Need a pitched asphalt-shingle roof instead?
Explore our complete roof replacement services in New Hampshire.
Get A Free Estimate
Request an EPDM Roofing Estimate
in New Hampshire
Residential or Commercial
Planning a new commercial roof ? or replacing an aging flat or low-slope roofing system? Queen City Roofing installs complete EPDM rubber roofing systems for commercial properties, multifamily buildings, new construction projects and qualifying residential low-slope roof areas throughout New Hampshire.
Our Queen City Roofing team will evaluate the property, roof design, existing construction, drainage, insulation and project requirements then explain the available EPDM roofing options and provide a detailed proposal.


