What might indicate that a roof is not draining properly?

Water pooling on the roof surface is a clear indicator that a roof is not draining properly. This situation usually occurs when the roof design has inadequate slopes or the drainage system is obstructed or improperly installed. Ponding water can lead to various issues, including leaks, structural damage, and degradation of roofing materials over time.

In contrast, rapid evaporation during sunny days might not necessarily indicate a drainage issue; rather, it can simply reflect environmental conditions. Consistent even water flow into gutters is a sign that the drainage system is functioning well. Similarly, cool temperatures in the attic area could result from proper insulation and ventilation but do not directly pertain to roof drainage concerns.