The answer to 'why is my asphalt shingles worn out' is that asphalt shingles typically wear out over time due to exposure to the elements. Common causes include sun damage, weather, and improper installation or maintenance. Symptoms of worn-out shingles include curling, cracking, bald spots, and loss of granules.
Asphalt shingles have an average lifespan of 15-30 years, depending on the quality of the shingles and the local climate. Homes in harsher climates with more sun exposure, wind, and temperature changes will typically see shingles wear out faster. Proper ventilation, regular inspections, and timely roof maintenance can help extend the life of your asphalt shingle roof.