The Summer Heat And How It Affects Your Roof Extreme summer heat does more to your roof than you think. If you don’t feel good when you are too exposed to the heat, the same happens to your roof. Your roof shingles don’t like excessive heat. The constant shift in season is reason enough why you should call a roofing contractor and have your roof inspected. Proper roof maintenance will prevent issues from worsening. Here are some roofing issues during the summer that you should know about: Roof degradation The number one issue that the summer heat can bring is roof degradation. Direct sunlight can have a huge impact on how long your roof can last. Most roofing materials are rated to last a good 20 years or more. However, that number is just an estimate for most of the time.