The answer to 'underlayment missing shingles' is that missing or damaged underlayment is a common cause of missing shingles. Underlayment is the protective layer installed under the shingles to provide an additional barrier against water and weather. If the underlayment is missing or deteriorating, it can lead to shingles becoming loose and blowing off during high winds or storms.
Some common symptoms of missing underlayment include visible gaps or spaces between shingles, shingles that are cracked or curling, and water stains or leaks in the attic or ceiling. To fix this issue, the underlayment will need to be replaced and the missing or damaged shingles will need to be repaired or replaced. This is typically a job for a professional roofing contractor, as it requires specialized skills and equipment to safely access the roof and make the necessary repairs.