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Does ponded water beneath waterproofing membranes affect integrity testing or test results?

April 26, 2017affect beneath integrity Membranes ponded results Test Testing water waterproofing

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Does ponded water beneath waterproofing membranes affect integrity testing or test results?

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No! “Wet” and “dry” testing establishes electrical paths to earth (concrete slab, profiled metal decking), and hence moisture access routes. Additional moisture, therefore, serves to improve the conductivity between the membrane and earth.