The answer to 'signs of underlayment damage' is that the most common signs of underlayment damage include curling, cracking, or deterioration of the underlayment material. This can lead to leaks, water damage, and other roofing issues. Underlayment is the protective layer installed between the roof deck and the shingles, and it plays a critical role in keeping water out of the home.
Some key signs to look for include visible cracks or splits in the underlayment, areas where the material has become brittle and crumbling, and sections that have started to curl up or peel away from the roof deck. This damage is often caused by exposure to UV rays, moisture, or age over time. Catching underlayment issues early is important to prevent more serious roof problems.