When temperatures climb during the summer months, commercial property owners often wonder how the heat impacts their rubber roof. Fortunately, EPDM (Ethylene Propylene Diene Monomer) roofing is specifically designed to handle extreme weather, including the hot summers we experience throughout Northeastern Pennsylvania. However, even one of the industry’s most durable roofing systems benefits from regular inspections and maintenance to ensure it continues performing at its best.

EPDM rubber roofing is highly resistant to ultraviolet (UV) radiation and can withstand surface temperatures well over 150 degrees on sunny days. Unlike many other roofing materials that become brittle or deteriorate rapidly under prolonged sun exposure, EPDM remains flexible and durable for decades. This is one of the primary reasons it has become one of the most trusted roofing systems for commercial buildings.
Although the membrane itself performs exceptionally well in the heat, constant expansion and contraction can affect other parts of the roofing system over time. Every day, the roof expands as temperatures rise and contracts as temperatures cool overnight. This natural movement places stress on seams, flashing, edge metal, pipe boots, and rooftop penetrations.
If these components begin to loosen or separate, water can eventually find its way beneath the membrane during heavy rainstorms. Catching these issues early is much less expensive than waiting for leaks to develop inside the building.
Heat can also reveal drainage problems. Areas where water regularly ponds become significantly hotter than the rest of the roof once the water evaporates. Repeated heating and cooling in these locations can accelerate wear around seams and flashing if left unaddressed. Proper drainage remains one of the most important factors in maximizing the lifespan of any commercial flat roof.
Another issue that becomes more noticeable during hot weather is foot traffic. Maintenance crews servicing HVAC equipment often access commercial roofs throughout the summer. On extremely hot days, excessive foot traffic can scuff or damage the membrane, particularly around equipment where technicians frequently walk. Installing walkway pads in high-traffic areas helps protect the roof and extend its service life.
Commercial buildings should also be inspected for debris that may trap heat or block drainage. Leaves, branches, and dirt can accumulate around drains and rooftop equipment, creating unnecessary stress on the roofing system. Routine cleaning helps prevent these small problems from becoming costly repairs.
One of the biggest advantages of EPDM roofing is its longevity. A professionally installed and properly maintained EPDM roof can often last 30 to 40 years. Annual inspections allow roofing professionals to identify minor concerns before they develop into expensive structural damage or interior leaks.
At The Flat Roof Guys, we specialize in commercial EPDM rubber roof repair, maintenance, and replacement throughout Northeastern Pennsylvania. Whether your building has a small leak, aging flashing, or simply needs a professional inspection after another hot summer, our experienced team can help protect your investment.
If you own or manage a commercial building in Wilkes-Barre, Scranton, Hazleton, Bloomsburg, or the surrounding NEPA communities, contact The Flat Roof Guys today at (570) 332-1223 or email office@theroofrepairguys.com to schedule a commercial roof inspection.







