Roof Vector Mapping

As the technician sweeps the brush electrode over the surface of the roof membrane electricity will flow through any breach in the membrane.

Roof vector mapping.

A grid can be permanently installed to facilitate future testing if the overburden protection layer does not have electrically resistant properties. This completes the circuit between the. A conductive wire loop is laid on the membrane around a section of the area to be tested. Vector mapping is designed for on demand use in new and existing roofing and waterproofing membrane systems.

Experience has shown that the best way to provide efficient and budget wise testing is to perform a high voltage sweep on the entire roofing assembly then perform low voltage vector mapping. One lead from a pulse generator is connected to this wire loop perimeter. In low voltage vector mapping the surface of the roof membrane is moistened not flooded to create an electrically conductive medium. Vector mapping pinpoints breaches in the roof membrane by tracing the flow of an electric current across the mem brane surface.

Our vector mapping technicians can help you troubleshoot the toughest waterproofing problems in virtually any application with high or low voltage leak detection technology. By performing the hv test first we find most or all of the puncture type anomalies which may or may not be evident to the naked eye.