Which type of roof is particularly susceptible to wear from standing water?

Flat roofs are particularly susceptible to wear from standing water due to their minimal slope, which is designed to allow for a more functional and usable space on the roof, but this design can also lead to water accumulation. When it rains or when snow melts, the water does not drain off efficiently as it would on a pitched or sloped roof. Over time, this standing water can cause damage to roofing materials, leading to issues like leaks, degradation, and structural problems.

In contrast, roofs such as gable and hip roofs feature slants that effectively direct rainwater and runoff away from the surface, minimizing the risk of water pooling. Pitched roofs also similarly channel water off efficiently, preventing standing water from accumulating. Thus, while flat roofs can provide benefits such as additional space, they are more vulnerable to wear and tear caused by prolonged exposure to stagnant water.