The answer to 'signs of skylight damage' is that there are several common signs to look for, including leaks, condensation, cracks, and discoloration. Leaks around the skylight frame or glass can indicate damage that needs repair. Condensation buildup on the interior of the skylight may mean the seal has failed, allowing moisture to get in. Cracks in the glass or frame are also a clear sign of damage that should be addressed. Discoloration of the skylight material or surrounding ceiling can point to water damage or other issues.
Catching these signs early is important to prevent further damage and costly repairs down the line. If you notice any of these issues with your skylight, it's best to have a professional roofing contractor inspect it as soon as possible.