When it comes to protecting a commercial property in Dover, NH, the roof plays a critical role in long-term performance, energy efficiency, and peace of mind. Many commercial buildings in the Seacoast region rely on low-slope or flat roofing systems, where membrane roofs offer reliable, weather-resistant protection. Among the most common options are TPO roofing, EPDM roofing, and PVC roofing systems.
At Dover Roofing LLC, we install and replace all three of these commercial roof membranes. Each has its strengths, and the right choice depends on your building, your budget, and how your roof needs to perform in New Hampshire’s demanding climate.
Understanding Commercial Roof Membranes
Commercial roof membranes are designed to create a seamless, watertight barrier over low-slope roofs. Unlike traditional shingles, these systems are installed in large sheets and carefully sealed at seams, penetrations, and edges to prevent leaks and withstand wind, snow, rain, and temperature swings.
TPO, EPDM, and PVC are all proven membrane systems, but they are not interchangeable. Let’s take a closer look at how each one compares.
EPDM Roofing: Proven and Flexible
EPDM roofing is a rubber membrane that has been used on commercial buildings for decades. Known for its strength and flexibility, EPDM performs especially well in climates like Dover’s, where freeze-thaw cycles and winter snow loads are common.
Pros of EPDM roofing:
- Excellent flexibility in cold temperatures
- Strong resistance to cracking and splitting
- Long service life when properly installed
- Cost-effective for large commercial roofs
EPDM is typically black, which allows it to absorb heat. In colder months, this can be beneficial, but in summer, it may contribute to higher rooftop temperatures. EPDM is a great choice for property owners looking for a reliable, time-tested commercial roofing solution with a solid track record in New England.
TPO Roofing: Energy-Efficient and Modern
TPO roofing has become one of the most popular commercial roofing systems in recent years. It’s a single-ply membrane designed to balance durability, energy efficiency, and affordability.
Pros of TPO roofing:
- Highly reflective surface that helps reduce heat absorption
- Strong resistance to UV exposure
- Heat-welded seams for added leak protection
- Clean, modern appearance
In Dover’s mix of hot summers and cold winters, TPO roofing can help improve energy efficiency during warmer months by reflecting sunlight away from the building. When installed correctly, TPO performs well against wind and moisture, making it a strong all-around option for many commercial properties.
PVC Roofing Systems: Chemical and Moisture Resistance
PVC roofing systems have fantastic resistance to chemicals, oils, and moisture. This makes PVC an excellent option for certain commercial buildings with rooftop equipment or exposure to grease, exhaust, or harsh materials.
Pros of PVC roofing systems:
- Exceptional resistance to chemicals and fats
- Heat-welded seams that create a watertight surface
- Strong durability in wet environments
- Long-term performance on demanding commercial roofs
PVC roofing systems are often chosen for restaurants, manufacturing facilities, or buildings with complex rooftop conditions. While PVC can come at a higher upfront cost, it offers added protection in environments where standard membranes may wear down faster.
Comparing TPO vs. EPDM vs. PVC
When comparing TPO roofing, EPDM roofing, and PVC roofing systems, there’s no one-size-fits-all answer. Each system serves a specific purpose:
- EPDM excels in flexibility and cold-weather performance
- TPO offers energy efficiency and modern seam technology
- PVC provides enhanced chemical and moisture resistance
The right membrane depends on factors like roof size, building use, energy goals, exposure risks, and long-term maintenance expectations.
Choosing the Right Commercial Roof Membrane in Dover, NH
Dover’s coastal climate presents unique challenges, from heavy snow and ice to strong winds and summer humidity. That’s why choosing the right commercial roofing system isn’t just about materials; it’s about experience and local knowledge.
At Dover Roofing LLC, we evaluate:
- Your building’s structure and roof slope
- Drainage and insulation needs
- Exposure to weather, chemicals, or rooftop equipment
- Budget and long-term performance goals
Our team provides clear recommendations based on what will truly protect your building, not what’s easiest to sell.
Partner With Dover Roofing LLC
As a family-owned roofing company serving Dover and the Seacoast region, Dover Roofing LLC brings craftsmanship, transparency, and community-focused care to every commercial roofing project. With decades of combined experience, long-lasting warranties, and 24/7 emergency repair service, we’re here to support your building through every season.
Whether you’re planning a full commercial roof replacement or exploring membrane options for a new installation, our team is ready to help you make a confident, informed decision.
Contact Dover Roofing LLC today to schedule your commercial roofing consultation and find the right roof membrane for your property in Dover, NH.
