Best practices state you should spot check your roof twice a year, typically in the fall and spring. How often you’ll need a full inspection depends on what your roof is made of. Different roofing materials decay at different rates, so composite, asphalt, and wooden shingles usually need a professional inspection every three years, whereas a tile roof may need one every five years.
The age of your roof is a good starting point to determine when it’s due for a replacement. Experts usually say a roof should last about 20 years, but that also depends on the composition of the roof. For example, this is the typical longevity of the following roofing materials:
Your shingles should lie flat against the roof. If they are curling, buckled, or damaged, your roof is showing signs of substantial wear.Another way to check? Inspect your gutters and downspouts for shingle granules. Roofs that are nearing the end of their life tend to shed these easily after a storm.
If your roof is missing shingles, tiles, or tabs, at minimum you need to repair the missing components. At worst, this may be another sign your roof’s useful days are numbered.
A roof that’s trapping moisture is usually one that needs a replacement. You can spot signs of moisture in your roof a few ways:
The flashing around the vents, skylights, and chimney on your roof help fortify these openings against leaks. That’s why it’s extremely important to make sure there are no cracks or breaks in the flashing, especially if it’s made of cement or tar, which erodes over time. Metal flashing typically has a longer life.
Remember, some damage doesn’t necessarily mean you need to replace the roof entirely. But if you see a few of the signs listed in this guide, call a professional to get your roof inspected and to get an expert opinion. If you’re in a hurricane-prone region, this might be a good opportunity for you to make your roof more wind-resistant, too.