Note 1 potable water weighs approximately 1000 kg cubic m 62 3 lb per cubic ft at 22 c 71 6 f or 1 g cm 2 cm depth 5 19 lbs ft 2 per in.
Roof ponding test.
How to fix ponding on a flat roof depends on the cause of the ponding.
Curing concrete slab where water could be easily retained on top of the concrete structure after it has been cast.
See photos 7 and 8 also spray testing is ideally suited for fast and easy results as the materials and techniques are quite basic and can be learned fairly quickly.
You cannot cure sloping roof or column walls with this method.
These might be when ponding water for a flood test is not practical or the presence of multiple metal penetrations make electrical testing difficult.
So if your flat roof is collecting water that doesn t drain or evaporate within 48 hours you will need to fix it.
It may also void your warranty.
Ponding test is the application of static pressure by pounding water on the internal face.
Applying cheaper materials does not save you any money it always cost you more since you have to redo those areas every.
The effects of equipment planters or other movable objects present within the test area should be considered.
However excessive ponding threatens your roof.
Ponding water accelerates the deterioration of many materials including seam adhesives in single ply roof systems steel equipment supports and particularly roofing asphalt.
The testing is done to check for any colored water leakages.
Withstands roof debris extreme temperature extremes and passed the astm 9000 hr accelerated weathering test.
Ponding is the typically unwanted pooling of water typically on a flat roof or roadway.
Ponding method is possible only on horizontal or flat surfaces of the structure i e.
Bathrooms tiles typically face water seepage which lead to the formation of molds and dripping from the ceilings of the floor below.