After any rainfall lands on a flat roof water will begin to pool.
Ponding on new flat roof.
The coating begins to break down under the harmful uv rays of the sun which heats the ponding water on the rooftop.
However when your flat roof has uneven areas due to sagging an insufficient slope or drainage issues the ponding water doesn t dissipate.
A sagging roof deck.
To specifically define the terms ponding or standing water refers to when water has not drained off the roof and has formed puddles or ponds 48 hours following the reason for the water.
On a performing flat roof ponding water is not a problem as it will drain or even evaporate away.
However when your flat roof has uneven areas an insufficient slope or drainage issues the water doesn t dissipate.
Ponding is caused by a range of factors including.
Bring in a roofing contractor to perform an inspection once or twice a year to ensure that the membrane is holding up and not worn or damaged in areas.
Flat roofs by their very nature will collect some water when it rains.
This can cause issues including tip.
On a performing flat roof ponding water is not a problem as it will drain or even evaporate away.
Ponding problems for flat roofs.
This can cause damage to the roof structure dirt and debris to collect and increased algae growth.
However excessive ponding threatens your roof.
However when your flat roof has uneven areas due to sagging an insufficient slope or drainage issues the ponding water doesn t dissipate.
If you own a residence or a commercial property with a flat roof you may have different concerns regarding protecting the roof system and maintaining the value of your property.
Skip straight to solutions or read on to learn more about the common problems caused by ponding.
Standing or ponding water is a regular occurrence with flat roofing in general but one that will not affect the performance of the grp roofing surface.
Common problems caused by flat roof.
Well there are many including.
So what are the problems associated with ponding on a flat roof.
This is known as ponding and it can bring a range of potential problems.
The grp flat roof has standing water or is ponding water into one area.
It may also void your warranty.
Standing water affects the stability of the roof s coating over time.
You can also perform preventative maintenance to ensure that the membrane stands the test of time.
So if your flat roof is collecting water that doesn t drain or evaporate within 48 hours you will need to fix it.
The ponding of water on a flat roof exposes the roof coatings to prolonged moisture.
If the water does not drain within a 48 hour period it is highly likely that it will stay even longer and there will be a larger amount of water standing.
An inspector will know how much ponding is acceptable on a flat roof.