Roof Ponding Test

We test alltimes liquid rubber on an asbestos roof.

Roof ponding test.

However when your flat roof has uneven areas due to sagging an insufficient slope or drainage issues the ponding water doesn t dissipate. Bring in a roofing contractor to perform an inspection once or twice a year to ensure that the membrane is holding up and not worn or damaged in areas. A failure of the roof. 2 roof above residential units planter box and or space that span over the living and or bedrooms 1.

Anti blockage test water tightness test flow rate test odour tightness test water ponding tests shallow floor trap resistance of water seal to pressure depth of water seal access for cleaning side inlet water tightness is one of the primary functionality of pbu. Withstands roof debris extreme temperature extremes and passed the astm 9000 hr accelerated weathering test. Rainwater ponding can be prevented by adequate construction measures. Astm e1105 and aama 501 2 test methods are good overall methods commonly used to test exterior walls sloped glazing and shallow pitched roofs to help identify leak sources.

Applying cheaper materials does not save you any money it always cost you more since you have to redo those areas every. This method works due to the ability of water to store or conduct electrical energy. A roof inspection should reveal blocked drainage depressions in the roof structural issues or a lack of pitch. All rc roofs above the residential units planter box and or space that are located above the living and or bedrooms will be subjected to waterponding test.

An inspector will know how much ponding is acceptable on a flat roof. The ponding duration should be at least 24 hours on the finished flooring. The rainwater load is of minor importance compared with other live loads on the roof like snow and wind loads in case the roof structure has a sufficient slope stiffness and number of emergency drains. If you want a long term solution to your ponding water areas this is the best ponding roof coating product to use.

Therefore if the underlying material is wet the electrical conductance is great and registers on the meter. To achieve quality waterproofing works an. You can also perform preventative maintenance to ensure that the membrane stands the test of time. What combination of slope stiffness and number of.

Ponding occurs when after a storm or heavy rain water collects in pools on the roof. Every roof needs positive drainage which means water should flow off the roof within 48 hours. The procedure involves placing a hand held moisture meter on the surface of the roof which sends an electrical current into the roof without penetrating its membrane. Wet insulation provides less resistance to the electrical current than dry insulation.

This astm testing procedure utilizes a calibrated spray rack with specific water pressures nozzles and distances to wet a wall with water at the rate of five gallons per square foot per hour. Roofs should be constructed in such a way that all water drains within 48 hours of the rain stopping.