Not only in the long term can it cause structural damage from the weight of the puddles but in the short term the puddles may cause leaks.
Should flat roofs have puddles.
According to the national roofing contractors association pooled water in excess of 48 hours can start to become problematic.
Flat roofs really shouldn t be flat.
Flat roofs should not have puddles.
However puddles 1 or more inches deep that linger for days can indicate a significant problem with.
When these sunken areas appear it s important to examine the problem carefully and determine if it is related to structural damage.
They normally will have at least a inch to a foot slope and many roofers prefer more.
We can stop your flat roof having puddles now.
A roof should not have puddles because roofs are not designed to hold the weight of a large amount of water.
Long term effects of ignoring ponding water on a flat roof by ignoring long term ponding water on a commercial flat roof you increase the odds of having serious roofing problems.
After the 2 days the water is going to start sinking into the roof system.
This means that once the rain stops you have about 2 days to get rid of the standing water or puddles that are on the roof.