Electronic Field Vector Mapping: The New Nondestructive Testing Method That Saves Time

Electronic Field Vector Mapping

What is Electronic Field Vector Mapping (EFVM)? EFVM is becoming one of the most popular forms of quality control testing for architects, specifiers, contractors, manufacturers and building owners across the United States. This new nondestructive test, in accordance with ASTM D7877-14, “Standard Guide for Electronic Methods for Detecting and Locating Leaks in Waterproof Membranes,” takes half the time to locate potential holes or current leaks in new and existing roofing and waterproofing membranes than the traditional flood testing approach. How Does EFVM Work? Instead of building dams around the membrane section to be tested, which can result in additional stress...

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