Over time water standing on a roof surface will damage roof coatings and roofing materials.
Ponding on roll roofing.
This is because the flat roof can hinder drainage from rainwater which results in standing water on the roof.
How to repair a bubble in a roll of top roofing ponding can occur on flat and low slope roofs that are installed using tarpaper roofing tar and fine gravel or a similar built up system.
On modern white roofs the water focuses the sunlight that passes through it like a prism and intensifies uv degradation.
During the design of a dead level roof slope should be added with tapered insulation or crickets.
By definition all properly designed and constructed roofs should have adequate and proper drainage.
Correct drainage is the most critical factor in preserving the life of your pvc roof.
A roll of pvc roofing membranes for roofs.
Roll roofing a small flat roof with greg zanis weatherwatch this quality gaf leak barrier helps keep water out of the most vulnerable areas of your roof inc.
The basic theory is that you will build up layers of rolled asphalt roofing to fill in the depression.
This entails stopping ponding water which is a common issue with flat roofs.
How to fix ponding on a flat roof depends on the cause of the ponding.
Interested in a roof coating system and a proper install.
Then apply a coat of the pond coat 24 larger than the perimeter of the ponding area so in essence you will be overlapping the standard coating with pond coat and the pond coat will extend 24 beyond the furthest point of ponding water.
A local roofing expert will schedule an on site survey to determine if any preliminary preparation is needed to address ponding water or any other roof related difficulty.
Flat roofs by their very nature will collect some water when it rains.
Ponding water accelerates roof system aging by.
One way is to use layers of rolled asphalt roofing.
Standing or ponding water eventually leads to roof leaks damage to roof and deck materials and damage inside the structure.
Long term effects of ponding water on a flat roof.
Degrading the roofing material itself.
Failing to address ponding water also known as standing water can result in water seeping through your roof.
If your commercial building has a flat roof sometimes there is a problem with ponding water.
If only certain areas are ponding we recommend that you apply two coats of our standard roof coating up to 12 inside the ponding water area.
This is a particular concern for older built up and modified roofs.
