Electric Field Vector Mapping Testing
For use with both high and low voltage testing methods.
Electric field vector mapping testing. Electric field vector mapping efvm method. 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. A thin film of water is applied to the surface to be. 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.
Efvm electric field vector mapping technology is a standard option for testing and verifying system integrity on hyproof waterproofing systems. However a commonly used unit in atomic physics and chemistry is the debye d. Theoretically an electric dipole is defined by the first order term of the. By performing both tests in this sequence we can test much larger areas in less time and test them much more effectively.
What is electronic field vector mapping efvm. Advanced dual sensor cross scan technology developed in the usa in early 2000. A concrete rooftop balconies planter box etc which is earthed or grounded. Our patented technology zeroes in on leaks.
The lv vector mapping test finds less obvious anomalies such as debris under membrane edges cold joints open t seams migratory leaks etc. As a roofing contractor for 38 years we understand how critical accurate electronic leak detection is for our clients. 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. Vector mapping electronic leak detection pinpoints breaches in roof and waterproofing.
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. 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. 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.
Truground is the best way to make sure the waterproof membrane on your conventional roof assembly is dry and watertight. Repairs from the hv test are also retested during the vector mapping.