The Different Ways Warm Weather Affects Flat Roofs

Friday, June 28th, 2019 by Michael Fortenberry

Generally, it’s during the blistering cold of winter when we worry about our flat roofs. In reality, however, summer can be just as damaging to a deteriorating flat roof. This is especially true in the case of those made of felt or bitumen. In fact, the stresses that summer brings to flat roofs could even cause their downfall in the winter.

The Different Ways Warm Weather Affects Flat Roofs - Image 1

We urge you to ask your commercial roofing pro to check your flat roof for any damage after a long hot summer. Fortenberry Roofing Co. can repair the isolated problems of your aging flat roof. For heavy damages, though, the most cost-effective solution is replacement.

Here are the different issues that summer can bring to your flat roofs.


Water penetrates felt through a crack or hole. When heated all day by the sun it expands and lifts the felt from the roof. This results in blisters or bubbles. If caught early, you can replace damaged sections of felt, but as time goes on it would be wiser to go for a full replacement. Never ignore blistering as they can lead to bigger problems.

Thermal Cycles

Summer heat and cold cycles force traditional-style flat roofs to expand and contract. This allows water to penetrate into the roof. Single layer PVC membrane roofing forms a 100% watertight covering. The breathable PVC material withstands the elements and condensation. Ask your commercial roof contractor for this type of roofing material.

Moisture Damage

Fungal growth caused by moisture build-up can damage flashing. This growth accelerates with plenty of sunlight hours. Check for them to identify areas that need repairs. Damaged flashing compromises drainage and the long-term health of a roof. In time the flat roof will begin to fail.

Commercial roofing damage to flat roofs may come soon or take years, depending on age. Avoid complications by having regular professional inspections courtesy of Fortenberry Roofing Co. This will stop minor problems from getting worse. We are the premier roofing company in Sudan, Littlefield, and Dimmitt, TX. Call us now at 1-844-701-0599.

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