The answer to 'signs of underlayment damage' is that the underlayment is the protective layer installed between the roof deck and the shingles or other roofing material. Signs of underlayment damage can include water stains, mold, or rotting on the roof deck, as well as curling, cracking, or missing shingles. Underlayment damage can lead to leaks and further roof damage if not addressed.
Underlayment is a critical component of a roof system, providing a waterproof barrier and protecting the roof deck from the elements. Over time, the underlayment can deteriorate due to exposure to moisture, UV rays, and other environmental factors. Regular roof inspections can help identify any issues with the underlayment before they become larger problems.