Buckleys: Wet Roof Pro2 Flat Roof Leak Detector Kit

The Wet Roof Pro’ has been designed to locate leaks on flat roofing systems which incorporate dielectric membrane overlays such as single-ply, asphalt, bitumen and liquid applied roofs.

It uses the ‘vector-mapping’ or ‘earth leakage’ method of locating faults. The conductive properties of water (from either rainfall or a hose) provide a medium through which electrical current can flow, allowing the user to pinpoint leaks. The kit comprises two main elements; a generator unit and a detector unit. The generator unit creates an electrical field across the roof surface via a ‘boundary wire’ which is positioned around the perimeter of the test area and connected to the negative terminal on the generator unit. The positive terminal is connected to a suitable earth on the building’s structure.

Leaks in the roof membrane allow water to penetrate to the building’s structure; creating a short circuit. The detector unit is connected to two hand-held test probes which are held in contact with the roof surface.

By measuring the voltage differential between the test probes, the detector unit is able to direct the operator to the location of the leak.