The answer to 'signs of flat roof damage' is that the most common signs include pooling water, cracks or splits in the roofing material, blisters or bubbles, and missing or damaged flashing. Pooling water is a key indicator, as it can lead to leaks and further deterioration of the roof. Cracks or splits in the roofing material, such as EPDM or TPO, are also a clear sign of damage that needs to be addressed. Blisters or bubbles in the roofing surface are another red flag, as they can be a precursor to larger issues. Finally, missing or damaged flashing around roof edges, vents, and other penetrations can allow water to enter the building and cause problems.
If you notice any of these signs on your flat roof, it's important to have a professional roofing contractor inspect it as soon as possible to identify the extent of the damage and recommend the best course of action for repair or replacement.