Should Flat Roofs Hold Water

The most common reason that flat roofs hold or pond water is because of inadequate or obstructed drainage.

Should flat roofs hold water. Flat roofing is not actually flat. Water does not run off of it very easily. Collect dirt which may cause the growth of vegetation or telegraph mud cracking to the roof below. 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.

The consequences of your flat roof collecting standing water. The design of a flat roof can sometimes prevent rain and precipitation water from draining properly making standing water a common problem. It has a very low slope between 1 4 to 1 2 inch per foot so that it drains water. Even flat roofs contain a slight slope to maintain positive drainage.

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. However puddles 1 or more inches deep that linger for days can indicate a significant problem with draining. By their very nature flat roofs do not completely drain after it rains. Leaving water on a flat roof for less time can help minimize roofing damage.

There s a problem with flat roofs.