Flat roofs do not drain as effectively as pitched roofs.
How to fix pooling on a flat roof.
Check around drain areas for roof debris or roof patching materials that may be blocking drain exits and remove them.
How to fix water puddling on a flat roof.
Add more drain lines.
Improving a flat roof drain system on a flat roof will extend the life expectancy and less maintenance over the years needed.
Ponding water is defined by roofers as water that stands in a puddle on the roof for longer than 48 hours.
As a result flat roofs are notorious for developing ponding water.
Check the gutters for any backup of debris that could prevent water from draining properly.
Start by looking for plugged drains.
However when your flat roof has uneven areas due to sagging an insufficient slope or drainage issues the ponding water doesn t dissipate.
Like the drains that live in your home drains on commercial roofs can eventually become clogged.
If you re lucky the drainage will be the problem since that s the easiest thing to fix.
Despite the fact that they are called flat roofs commercial flat roofs aren t always completely flat.
While this is not an immediate threat over time ponding water will begin to wear on the roofs membrane thus.
Give the drains some tlc.
The weight of the water pooling on a roof can cause the joists to bow and in turn cause more water to accumulate.
A problem area on your roof that is prone to ponding does not have to be a constant issue for you a licensed roofer can fix the pool s of water on your roof and can also ensure that you don t experience further ponding issues.
If water is pooling on your roof the first place to look is at the drainage system.
Unclogging the drain will solve the problem.
It is is very important to correct this issue before it becomes irreversible and costly repair follows.
Dry the puddled water with old rags or towels and allow the roof exterior to completely air dry.
Eliminate any water leaks coming from ac units coolers or drain lines.
After any rainfall lands on a flat roof water will begin to pool.
How to stop water pooling on flat roof flush existing drains.
On granulated roofs remove all loose mineral granules as they trap moisture.
On a performing flat roof ponding water is not a problem as it will drain or even evaporate away.
