The most common reason that flat roofs hold or pond water is because of inadequate or obstructed drainage.
Should flat roofs hold water.
Water does not run off of it very easily.
By their very nature flat roofs do not completely drain after it rains.
Collect dirt which may cause the growth of vegetation or telegraph mud cracking to the roof below.
The good news is that this cause of ponding water is usually the easiest to correct with scheduled roof maintenance.
There s a problem with flat roofs.
However puddles 1 or more inches deep that linger for days can indicate a significant problem with draining.
Leaving water on a flat roof for less time can help minimize roofing damage.
The design of a flat roof can sometimes prevent rain and precipitation water from draining properly making standing water a common problem.
Roof systems are simply not designed to hold water.
There can be a host of reasons why ponds of water may appear on your roof after bouts of rain so it s important to know what remedial action to take if your property is suffering.
The consequences of your flat roof collecting standing water.
Ponding water is typically a sign of a drainage problem that needs to be addressed because when left unaddressed ponding water on a roof can.
It has a very low slope between 1 4 to 1 2 inch per foot so that it drains water.