What to do with Ponding Water?
June 7th, 2010
Ponding water on a roof is water that is still there 2 days after a rain. Areas which hold water on a roof can result in premature deterioration of the roofing system in that area. Problems which can be attributed to ponding water include leaks through seams which can deteriorate with freeze thaw cycles or water exposure. Algae which attracts insects which attract birds is another issue with ponding water. Ponding water creates an environment which can support vegetation. The roots in the vegetation can find their way into roof membranes and their seams. Finally excessive areas of ponding water can result in deck deflection in some buildings which then increases the ponding water problem.
What can you do about ponding water? Move it! The easiest way to move ponding water is with the use of tapered insulation installed in a manner that sheds water to the drains. This type of repair is frequently less costly than repairs to areas where water has been allowed to enter the roofing system and building resulting in more extensive repairs. The addition of roof drains in the area of the pond is another option.
Good roofing practice would include removal of ponds when they are identified. In doing so, the useful service life of your roofing system can be extended.
By kacey
Posted in: Building Leak Analysis, Roof Inspection
This entry was posted on Monday, June 7th, 2010 at 9:16 pm and is filed under Building Leak Analysis, Roof Inspection. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.
