If the pooling water covers a 10 x 10 feet area and it is deeper than 1 then the added weight of this area is approximately 500lbs.
Water pools on flat roof.
As such you need to get rid of the water that is on.
It starts with the weight.
Standing water weighs approximately 5 lbs.
Ponding water is defined by roofers as water that stands in a puddle on the roof for longer than 48 hours.
This becomes more and more expensive as time goes on.
Flat roof water pool weight can cause damage to the structure.
Flat roofs do not drain as effectively as pitched roofs.
However puddles 1 or more inches deep that linger for days can indicate a.
Another side effect of pooling water is that the water collects dirt from the entire surface of the root and as it slowly evaporates it leaves behind a pile of mud and dirt.
If water pools in the deteriorated area it can find its way through the roof and cause a leak.
This is why it s imperative that you don t allow water to pool on the roof for more than 48 hours after rainfall.
As a result flat roofs are notorious for developing ponding water.
Per inch for every square foot.
We have had a fibre glass flat roof installed on a new extension we ve had built.
It does not say for which season.
Your goal is to prevent damage to the flat roof.
How to fix water puddling on a flat roof.
By their very nature flat roofs do not completely drain after it rains.
In two areas there is ponding of water that doesn t seem to drain away and takes a long time to clear whereas the remainder of the roof seems to dry out quite quickly.
How to prevent damage.