How Heat Affects Your Los Angeles Roof

Sep 1, 2021 | Blog, Los Angeles, Roofing

The summer is a wonderful time of year that everyone looks forward to. People take a break from their busy schedules and go on vacation, soak up the warm summer sun and just enjoy life and all the happy vibes that the warm weather brings.

As fun as the summertime can be, the sun takes quite a toll on homes and rooftops. Overexposure to high temperatures and harmful UV rays can be detrimental to your house’s roof; it can wear down your roofing materials and significantly reduce the life of your roofing system.


If you think that your roof may be suffering as a result of the intense heat, keep reading as Guardian Roofs detail how the heat affects the roof of your home.


Thermal Shock

Throughout the day, your home is exposed to significantly high temperatures. This heat leads to your roof expanding quite a bit. At night, your roofing materials cool rapidly. This extreme expansion and contraction weaken the structural integrity of your roofing materials, resulting in them breaking down rapidly.



Dark roofing materials tend to absorb quite a bit of heat. Being exposed to high temperatures over time speeds up the chemical processes occurring within the materials. This acceleration can lead to the deterioration of your home’s roofing materials. Overexposure to this heat can lead to asphalt shingles crumbling and curling, metal sheets warping, and clay tiles cracking.



The constant presence of hot, humid air combines the destructive features of heat and moisture, rapidly deteriorating your home’s roofing system. Humidity causes condensation to settle on your roof, which can lead to mold and mildew growth as well as jeopardizing the structural integrity of your roof and its materials.


Fire Hazard

It’s vital always to clear your rooftop of all dirt and debris. Things like dried leaves, twigs, and pine needles often become a fire hazard when not tended to promptly. If a fire breaks out on your rooftop, you risk destroying your roof and home in the process.

For more information on how heat impacts your roofing system and how you can protect it from heat damage, give Los Angeles’ Guardian Roofs a call today!