How To Stop Water Ponding On Roof

Managing ponding water is essential to properly maintaining a roof.

How to stop water ponding on roof.

To divert water away. Ponding water is defined by the industry as water that stands for 48 consecutive hours following rain. Protrusions from the roof can provide additional points of vulnerability. Ignoring ponding water on a flat roof.

After any rainfall lands on a flat roof water will begin to pool. Water may accumulate on a low slope roof due to rain snow or runoff from rooftop equipment. While it s true ponding water may not be an imminent emergency it is certainly a cause for concern over time. Whichever solution you choose the goal is the same.

The problem is when the water sticks. There are a variety of methods we can use to stop water ponding on a commercial flat roof without having to do a full roof replacement. Ponding water might not be an immediate threat but if it is allowed to persist over time that water can begin to wear on the roofing membrane. While every circumstance is different an insufficient roof pitch or slope is usually the source of water ponding.

On a performing flat roof ponding water is not a problem as it will drain or even evaporate away. Ponding water is defined as the water which remains on a roof 48 hours or longer. Ponding water can have major negative consequences regardless of the type of roofing system. Roofs with higher slopes are less prone to this issue as the water is able to drain down the roof rather than sitting stagnant as it does with some flat roofs.

When speaking about ponding on roofs we are referring to the pooling of water in areas of the roof that doesn t drain or evaporate. We explain some causes of ponding water how you can stop it from damaging your roof. If you have some water on your roof after a heavy rain for instance but the water is gone in a couple of days your roof is doing just fine. Ponding water is known in the roofing community as water that stands in a puddle on the roof for more than 48 hours at a time.

How to stop a water leak in a steel roof ponding can occur on flat and low slope roofs that are installed using tarpaper roofing tar and fine gravel or a similar built up system. Does your roof have issues with ponding water. Common problems caused by flat roof.