Flat Roof – Ponding Water – The Shocking truth the Waterproofing manufacturers do not want you to know
In truth over 90% of Flat roofs we have surveyed have ponding water
The industry generally classifies ‘’Ponding Water ‘’ as water that remains on the flat roof for over 48 hours following a rainfall
This roof has been underwater for 3 weeks
The main cause of this is insufficient falls/slopes to the drains of the roofs allowing water to collect into puddles and they sit leaking into the roof until they eventually evaporate
This is often compounded by very small drain outlets and in some cases, not enough drainage points
Drain hole made even smaller
With bitumen felt
THE SHOCKING TRUTH ABOUT THE WATERPROOFING INDUSTRY
There is no recognised industry standard for ponding water !!
So let’s get this right – the industry recognises Ponding water as water on the roof for more than 48 hours but will not sign up to an industry standard for declaring their products resistance to it
Many manufacturers will not declare any ability to withstand Ponding water for their product
This roof has been underwater for 4 weeks and is now delaminating
No surprise then that virtually all the waterproofing materials used in Cyprus are merely resistant waterproofing which means they will fail after a relatively short period of time if they are subjected to being under water for any prolonged period of time and with our rainfall the roof can be under water for weeks at a time
If you would like professional advice then contact us for a no obligation chat
