Electric Field Vector Mapping Testing

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.

Electric field vector mapping testing. What is electronic field vector mapping efvm. Vector mapping electronic leak detection pinpoints breaches in roof and waterproofing. Theoretically an electric dipole is defined by the first order term of the. Developed by the ild team through years of research and field installation the vector mapping conductive mediums were created to test membranes or coatings over non conductive substrates.

Our patented technology zeroes in on leaks. Already europe s most widely used method for detecting roof leaks vector mapping is rapidly being adopted by manufacturers contractors and specifiers in the. Intended to be used in lieu of traditional flood testing efvm is provided by international leak detection an independent third party agency that will provide our customers with an unbiased. The lv vector mapping test finds less obvious anomalies such as debris under membrane edges cold joints open t seams migratory leaks etc.

For use with both high and low voltage testing methods. A thin film of water is applied to the surface to be. Low voltage vector mapping is a method of electronic leak detection that pinpoints breaches in the roof membrane by tracing the flow of an electric current across the membrane surface. Efvm electric field vector mapping technology is a standard option for testing and verifying system integrity on hyproof waterproofing systems.

This testing method adheres to the astm standard practice for detecting breaches in roofing and waterproofing membranes astm d8231 19. However a commonly used unit in atomic physics and chemistry is the debye d. A concrete rooftop balconies planter box etc which is earthed or grounded. Get full testability and full adhesion install the closest most complete grounding substrate for the entire membrane more.

Advanced dual sensor cross scan technology developed in the usa in early 2000. The electric dipole moment is a measure of the separation of positive and negative electrical charges within a system that is a measure of the system s overall polarity the si units for electric dipole moment are coulomb meter c m. Electric field vector mapping efvm efvm is a leak detection method based the measurement of the current flow between a non conductive membrane surface and a conductive substrate ie. Over the years we have used many forms of interpretive testing methods such as infrared thermography capacitance testing hygrometers vector mapping sampling etc and found them all to have too many limitations.

By performing both tests in this sequence we can test much larger areas in less time and test them much more effectively. Truground is the best way to make sure the waterproof membrane on your conventional roof assembly is dry and watertight.