How Heat Affects an Asphalt Roof

Asphalt is the preferred roofing material of countless homeowners. Not only is it a highly affordable option, but it’s also lightweight and easily replaceable. Despite all the reasons why asphalt is one of the most desirable materials, it can also be prone to damage, especially in hot weather. Homeowners need to be vigilant about the effects of prolonged heat so that they know when to call for emergency roof repair in Philadelphia, PA. Here’s what you need to know about the impact of heat on an asphalt roof.

Damage to Flashing

If you have an asphalt roof, it’s important to ensure that the flashing is in good shape. Flashing tends to expand in the heat and may stretch or break over time, especially if you’ve chosen plastic flashing. Damaged flashing can lead to a number of risks, such as leaks and mold growth, which can compromise the quality of the rest of your roof.


Cracking is another common concern for asphalt roofs that are exposed to excess heat. In hot weather, asphalt shingles start to grow dry and brittle. As a result, they become more prone to cracking. It’s also worth noting that cracked asphalt shingles invite moisture into the roof structure, which can lead to serious water damage over time.


Shrinking is one of the most common effects of heat on flat roofing in Philadelphia. Once your shingles begin to shrink, blisters may begin to form on top of them. This can be particularly dangerous if the nails that hold the shingles together pop off. In this situation, the asphalt is fully exposed and at a greater risk of damage. This can trigger leaks and other problems if the roof isn’t repaired as soon as possible.

Keep Your Asphalt Roof in Top Condition

While heat can damage asphalt in numerous ways, you can combat these effects with the right strategies. In addition to properly maintaining your roof, be sure to call Union Roofing for high-quality repair services. Our skilled and dedicated team can help your roof look better than it used to while protecting it from additional damage. Taking these steps to properly maintain your roof can help enhance the appearance and overall value of your home.


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An attractive roof enhances curb appeal and boosts property value. Let the experts at Union Roofing meet your roofing needs with superior products and unparalleled service. Find out why we are the best roofing company in New Jersey and Pennsylvania, earning top ratings with Angie’s List, Google Reviews, and Home Advisor. Contact Union Roofing today for a free, no-obligation consultation!

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