How Does Heat Affect Different Types of Roofs?

This illustration shows the sun high in the sky causing the heat to build on the roof of a home.

Have you ever wondered how hot a roof gets in the summer? On a typical 90-degree day, a roof can get as hot as 160 degrees, especially if you have a dark-colored roof like most homeowners do. That kind of heat isn’t good for anything, but what exactly can extremely hot temperatures do to different roofing materials? While some can hold up stronger than others, heat brings many negative effects that, if left unchecked, can lead to new roof installations and repairs much quicker than you’d want.

Heat and UV Rays Are the Biggest Threat to Roofs

The sun’s UV rays can be beneficial in the right circumstances, but just like humans, too much of it can take a toll on your roof. UV rays even affect your roof on cloudy days, drying out the materials and causing them to bleach and crack. If you live in climates with extreme heat, lighter colors for your roof can help repel the sun’s rays and energy, improving your home’s energy efficiency while keeping your roof temperature down.

Don’t Ignore the Effects of Humidity

Moisture is never a good thing for your roofs, and it’s important to avoid humidity in your attic and around the home. Keeping indoor humidity in the range of 30 and 50 percent ensures that moisture in the house doesn’t get trapped in the roofing materials. Don’t forget to get your roof checked out with proper maintenance. If a roof is trapping moisture and you don’t get it corrected, you’ll find yourself searching for emergency roof repairs in Bucks County, PA, sooner than you think.

Heating and Cooling Cycles Put Pressure on Your Roof

Some of your roofing materials, including asphalt shingles, don’t take too well to the constant temperature cycling. Heat causes your shingles to expand, while nighttime conditions contract your roofing materials when the temperature drops. These daily cycles can cause cracks and curls in your shingles, making routine maintenance much more important. Contractors can identify damage to your shingles and recommend changes to your roofing in cold weather or warmer temperatures.

How Do I Protect My Roof From Heat Exposure?

Now that you know how hot a roof can get in the summer, you’re probably wondering how you can prevent your roof temperature from skyrocketing. After all, your roof is always exposed to the summer heat, and there isn’t a tarp or covering you can place for protection unless you turn to solar panels.

Solar panels are a great way to keep parts of your roof from heating up while also benefiting from the energy of the sun’s rays. If solar installations are a bit much, you can still enjoy the benefits of the sun with a solar fan that forces air out of your attic and keeps your roof cool.

Prevent Heat From Damaging Your Roof With a Professional Roofing Company

When in doubt, you can call on your local roofing services to repair or replace your roof or keep your roof temperatures down. Occasionally homeowners and business owners with damaged roofs lengthen their issues by neglecting to get proper repairs or maintenance. Philly Roofing provides residential and commercial roofing to Philadelphia buildings and homes. You’re one call away from a cool roof, so reach out today and speak to our roofing contractors about what we can do for you.


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