Even flat roofs contain a slight slope to maintain positive drainage.
Ponding water on tpo roof.
Those pitched roofs have a natural slope where the water can run down draining off the roof.
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 known in the roofing community as water that stands in a puddle on the roof for more than 48 hours at a time.
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.
Collect dirt which may cause the growth of vegetation or telegraph mud cracking to the roof below.
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.
To resolve ponding before it damages the roof determine the cause of the ponding and select the appropriate solution.
This tpo roof actually disintegrated in ponding water.
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.
Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope.
Crushed insulation causing low spots.
Tpo roofing systems 101.
The uv stabilizers gone weathering package layer gone the polypropylene ep rubber gone all that was left was the polyester reinforcement.
Onding water sometimes occurs on membrane roof systems as a result of snow rainfall or runoff from equipment.
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.
Tpo membranes do not require the ongoing resealing of penetrations walls and curb base flashings associated with bur s.
Heat welded seams provide superior strength.
Another problem with leaving pooled water on your roof is the ability of water to act as a magnifying glass.
Bur built up hot asphalt roofing excludes ponding breaks down and can support vegetation including moss and fungus.
Watch this 37 second video.
The water was sitting on top of the insulation board and started leaking in the building causing extensive damage.
Ponding occurs when after a storm or heavy rain water collects in pools on the roof.
Your flat roof is built to withstand regular ultraviolet rays for many years.
Ponding or standing water is where the water collects on the roof and has not drained within a couple of days.
Tpo membranes do not exclude ponding water from the warranty and is not affected by such conditions.
