The answer to 'why is my asphalt shingles missing shingles' is that missing shingles on an asphalt roof can be caused by several common factors, including age, weather damage, improper installation, or lack of maintenance. Shingles can become loose, crack, or blow off over time due to exposure to the elements, especially high winds, heavy rain, or extreme temperatures.
If you notice missing shingles, it's important to address the issue promptly to prevent further damage to your roof and potential leaks. While some minor shingle replacement may be a DIY project, it's generally best to call a professional roofing contractor to inspect the roof, identify the root cause, and make the necessary repairs to ensure the integrity of your roofing system.