If you’ve recently invested in a new roof, you may be wondering how it will hold up during the hottest days of summer. While today’s asphalt shingles are designed to withstand years of sun exposure, extreme heat can still affect a newly installed roof in several ways. Understanding what happens during those first few months can help homeowners protect their investment and recognize what’s normal versus what requires attention.
New Shingles Need Time to Seal
Modern architectural shingles include a factory-applied sealant strip that bonds each shingle to the one beneath it. This seal is activated by the sun’s warmth, making moderate summer temperatures beneficial after installation.
However, during periods of intense heat, especially when temperatures climb into the 90s across Northeastern Pennsylvania, shingles can become more flexible before they have completely sealed. While this is generally temporary, it’s one reason why homeowners should avoid walking on a newly installed roof during hot weather.
Heat Softens Asphalt
Asphalt naturally softens as temperatures rise. This doesn’t mean your roof is failing, but it does make new shingles more susceptible to damage from foot traffic. A misplaced step on a hot afternoon can scuff protective granules, create dents, or even cause small tears that may shorten the life of the roof.
If work needs to be performed on your roof shortly after installation—such as satellite installation, chimney work, or HVAC service—it’s best to coordinate with your roofing contractor to minimize unnecessary traffic.
Proper Ventilation Is More Important Than Ever
A new roof performs best when paired with a properly ventilated attic. Without adequate airflow, attic temperatures can exceed 140°F during the summer, placing additional stress on both the shingles and the roof decking.
Good ventilation helps:
- Reduce excessive heat buildup.
- Improve energy efficiency.
- Extend the lifespan of asphalt shingles.
- Minimize moisture problems throughout the year.
Color Can Influence Surface Temperature
Darker shingles absorb more solar heat than lighter colors. While both are manufactured to perform under high temperatures, darker roofs often reach significantly higher surface temperatures during peak sunlight.
That doesn’t necessarily mean homeowners should avoid darker colors. Instead, it’s important to choose high-quality shingles installed according to manufacturer specifications to ensure long-term durability. Quality Installation Makes the Difference.
Proper nail placement, underlayment installation, flashing details, and ventilation all play critical roles in how a roof handles summer heat.
Trust 570 New Roof for Expert Roof Replacement
At 570 New Roof, we install premium asphalt roofing systems built to withstand the changing weather conditions throughout Northeastern Pennsylvania.
If you’re considering a roof replacement in Scranton, Wilkes-Barre, Hazleton, Bloomsburg, or the surrounding NEPA communities, contact 570 New Roof today at (570) 332-1223 or email office@theroofrepairguys.com to schedule your free estimate.