This is a particular concern for older built up and modified roofs.
Ponding on roll roofing.
Long term effects of ponding water on a flat roof.
This is especially prevalent after a lot of rainstorms.
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.
How to fix ponding on a flat roof depends on the cause of the ponding.
On modern white roofs the water focuses the sunlight that passes through it like a prism and intensifies uv degradation.
5 ponding water another common problem across all roof types is what i call incidental ponding water if we move the water off the roof the roof has a really good chance of performing the way it should notes pierce.
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.
One way is to use layers of rolled asphalt roofing.
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.
Interested in a roof coating system and a proper install.
Flat roofs by their very nature will collect some water when it rains.
If your commercial building has a flat roof sometimes there is a problem with ponding water.
This is because the flat roof can hinder drainage from rainwater which results in standing water on the roof.
The basic theory is that you will build up layers of rolled asphalt roofing to fill in the depression.
Contact a choice roof contractor member in your area to see if your roof is eligible for a coating system.
By definition all properly designed and constructed roofs should have adequate and proper drainage.
Ponding water accelerates roof system aging by.
A roll of pvc roofing membranes for roofs.
Standing or ponding water eventually leads to roof leaks damage to roof and deck materials and damage inside the structure.
Degrading the roofing material itself.
Failing to address ponding water also known as standing water can result in water seeping through your roof.
During the design of a dead level roof slope should be added with tapered insulation or crickets.
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.
Correct drainage is the most critical factor in preserving the life of your pvc roof.