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Holiday Detctor Test
If a roofs waterproof membrane is continuous, it may act as an electrical insulator to the electrically conductive structure of the building below. This allows any defect, such as, a puncture to the roof membrane, to act as a pathway for an electrical current to be discharged to earth. The Holiday Detector introduces a stabilised direct current over the dry roof membrane that produces an audible tone when punctures in the roofing membrane are encountered. The Holiday Detector Test instrument enables BDAS to quickly check
for pinholes and porosity on a wide range of non-conductive roofing
systems.
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Last Update : February 2003 |
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