The answer to 'how to maintain underlayment' is to regularly inspect and repair any damaged or worn areas. Underlayment is the protective layer installed between the roof deck and shingles, and it plays a crucial role in preventing leaks and protecting your home's interior.
Inspect the underlayment annually, looking for signs of wear, tears, or deterioration. Pay close attention to areas around nails, flashing, and transitions between roof sections. If you find any issues, patch them promptly using compatible underlayment materials and roofing sealants. Keeping your underlayment in good condition will help extend the life of your roof and ensure it continues to provide reliable protection.