The answer to 'asphalt shingles worn out' is that asphalt shingles typically last 15-30 years, depending on factors like climate, installation, and maintenance. Common signs of worn-out asphalt shingles include curling, cracking, bald spots, and excessive granule loss. This can lead to leaks, water damage, and other issues if not addressed.
The best solution is to have a professional roofing contractor inspect the roof and provide recommendations. They can assess the condition of the shingles and determine if a full roof replacement is needed or if spot repairs will suffice. Attempting DIY roof repairs is generally not recommended, as it can be dangerous and lead to further damage if not done properly.