Although flood testing isn’t a common leak detection practice followed today, it continues to remain effective when electronic testing is impractical or in areas that are continually submerged in water (swimming pools, water fountains, etc.) Sometimes, it is necessary to ensure that a structure can withstand substantial water leakage.
What is flood testing?
The area to be tested is completely filled with water without allowing a chance to escape either through the drain or other source. The water is filled to a minimum depth of 1” and a maximum depth of 4” and poured at a pressure that does not damage the waterproofing membrane. The space below the test area is then checked to look for signs of water leakage within regular intervals. If leakage occurs, water is immediately drained and recommendations are made. The test area should be re-tested after repairs are undertaken to ensure that waterproofing is complete. Tests are conducted within a 24-72 hour time range with regular inspection intervals. Also, tests are not conducted when rain is expected within the test period.
Precautions before flood testing:
Improper test practices have given this method a bad rap. When undertaken by a professional and competent roof leak detection company after ensuring proper precautions, flood testing is very effective. The
building leak detection team at UK always ensures that the roof is strong enough to take weight and the drainage system can take the pressure when water is released.
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