What is ponding water? Ponding water is water that is left over from rain and resides on your roof for longer than a 48 hour period of time. Even though you may not think it, flat roofs can also accumulate ponding water. The standing water left over can lead to structural issues, such as deformation of the roof, bending of the roof or even worse, roof failure. Below are some more examples of issues that can be created by ponding water.
A roof is designed to protect the wood framing underneath from water damage. If water begins to sit for a period of time, the water can begin to seep through the roofing material onto the wood. In addition to the wood being exposed by water, the insulation can become waterlogged causing decreased thermal efficiency, and the drywall can be damaged.
Organic consumption of the surface:
Sitting water, ponding water, can attract a lot of microscopic living organism that thrive off of stall water conditions. The organisms have the ability to eat up the roofing material and creates a need for the roof to be replaced.
Algae and vegetation:
As mentioned previously, ponding water can attract microscopic living organisms, but it can also attract vegetation and living organic matter, such as algae and other vegetation growth. This will not only damage the roof, but it also poses an issue of blocking other means for water drainage, which will expand the issue.
Ponding water can become heavy and cause additional pressure to the roof’s load bearing capabilities. This can cause the roof to deflect, meaning the areas impacted will be lower in those areas. This problem can cause permanent structural damage.
A lot of debris lands on your roof over the course of a year, but typically running water and wind remove them from the roof. When the debris, such as dirt, chemicals, and leaves, land in ponding water on your roof, they get stuck. This can pose another situation where the debris can block the drains and increase the amount of ponding water on the roof.
Aging of the roof:
The sun contains UV rays, which over time will cause the roof to degrade. When ponding water settles on a roof, it acts as a magnifying glass for the UV rays to penetrate the roof further. This will accelerate the roof degradation.
Roof repairs can only be completed for a certain period of time. After that, it will result in a roof replacement needing to take place. The cost for a roof replacement can cost upwards of 10 thousand dollars or more to replace. The other cost that should be considered with roof replacements is the cost of business that will have to take a break while the building is being repaired. The other consideration is the time spent away from conducting business to focus on this initiative.
Another situation to bear in mind is that some insurance companies have begun excluding ponding water from their contracts. It becomes a concern when the cost of the roof needs to be paid for by yourself rather than just a deductible.
Water ponding has the ability to ripple effect damages throughout your organization. It can result in a very costly repair bills or generate further damage, which results in a higher bill. There is a way to avoid this from turning into an expensive endeavor. If organizations take a proactive approach through prevention practices, then there is the ability to save the organization money in the long-run. Professionals can assist you with looking at the physical structure of your roof and help monitor to prevent water ponding from being a larger issues in the future.