Another problem with leaving pooled water on your roof is the ability of water to act as a magnifying glass.
Ponding water on tpo roof.
Because these roofs don t drain water that well they are prone to developing what is known as ponding water.
Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.
The water was sitting on top of the insulation board and started leaking in the building causing extensive damage.
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To resolve ponding before it damages the roof determine the cause of the ponding and select the appropriate solution.
Even flat roofs contain a slight slope to maintain positive drainage.
Most pools of water will quickly drain off or even evaporate but owners should be aware of the signs that ponding has become an issue.
Tpo roofing systems 101.
Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.
Onding water sometimes occurs on membrane roof systems as a result of snow rainfall or runoff from equipment.
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.
Your flat roof is built to withstand regular ultraviolet rays for many years.
Heat welded seams provide superior strength.
Ponding or standing water is where the water collects on the roof and has not drained within a couple of days.
Although you may be held responsible for ponding on new or re covered roof systems many elements that determine how well a roof assembly will drain are outside your responsibility or control.
This tpo roof actually disintegrated in ponding water.
If water remains on the roof system after 48 hours consider it an issue that could lead to larger problems requiring costly repairs.
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.
Crushed insulation causing low spots.
Those pitched roofs have a natural slope where the water can run down draining off the roof.
Tpo membranes do not exclude ponding water from the warranty and is not affected by such conditions.
Besides water one of the main damaging forces your roof has to stand up to is ultraviolet rays from the sun.
Ponding occurs when after a storm or heavy rain water collects in pools on the roof.
Tpo membranes do not require the ongoing resealing of penetrations walls and curb base flashings associated with bur s.
Bur built up hot asphalt roofing excludes ponding breaks down and can support vegetation including moss and fungus.
