It has a very low slope between 1 4 to 1 2 inch per foot so that it drains water.
Should flat roofs hold water.
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.
Flat roofing is not actually flat.
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.
By their very nature flat roofs do not completely drain after it rains.
But such a low slope holds snow and water much longer than a steeply pitched roof and therefore needs a very different material to stay watertight.
Even flat roofs contain a slight slope to maintain positive drainage.
Roof systems are simply not designed to hold water.
The consequences of your flat roof collecting standing water.
Leaving water on a flat roof for less time can help minimize roofing damage.
Water does not run off of it very easily.
The most common reason that flat roofs hold or pond water is because of inadequate or obstructed drainage.