Asphalt shingles typically last between 15 to 30 years, depending on the quality of the shingles, climate conditions, and maintenance. Standard three-tab asphalt shingles often have a shorter lifespan, around 15 to 20 years, while architectural or laminated shingles can last closer to 25 or 30 years due to their thicker, more durable design. Over time, exposure to sunlight, temperature changes, wind, and moisture causes shingles to lose granules, crack, curl, or blister, which reduces their effectiveness in protecting your home from water damage. To get a rough idea of your roof's condition, you can safely examine it from the ground using binoculars or a ladder—look for missing shingles, bare spots, or granule buildup in gutters. Keep in mind that your roof’s warranty may cover materials for a certain number of years, but it usually doesn’t cover damage from weather or poor maintenance.
If you notice signs of aging or damage during your inspection, it’s wise to call a professional roofer for a more detailed evaluation, especially if you’re unsure or working on a steep roof. A roofer can identify issues like leaks, underlayment problems, or structural concerns that aren’t visible to an untrained eye, and they’ll be aware of local building codes and manufacturer guidelines. When speaking with a contractor, ask “How do you determine when shingles need full replacement versus repair?” and “Are your installation methods fully compliant with my shingle manufacturer’s warranty requirements?” These questions help ensure that any work you get done protects your home while keeping your roof’s warranty intact.