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Leak Detection Services

We're experts at finding the source of unwanted water ingress

With a range of specialist equipment, Gap roofing are experts at finding leaks within a building envelope. We use state of the art equipment to find the source of water ingress.

We own and operate our own access equipment, so we can get to the source of the problem quickly. We also have electrical testing equipment as detailed below:

electrical testing

Electrical testing equipment for wet and dry tests

Wet testing: Using a conductive perimeter wire on the surface of the test area, a Pulse Generator produces low-voltage current that propagates over the test area via the water on the surface.

An earth-return lead connects to a known earth point on the roof structure. A pulse of current find a path to earth through leaks and holes in the roofing membrane, which is non-conductive. The Detector measures this current flow and directs the operator towards the exact location of any leaks.

Dry Testing:

Dry testing applies a high-voltage DC current to the surface via a conductive brush (an electrode) connected to the detector unit.

An return lead from the detector unit is connected to a known earth on the roof structure. As the operator passes the electrode brush over the roof’s non-conductive membrane, any holes allow the completion of an electrical circuit, triggering the detector unit to sound, highlighting a fault's location.

Assess equpiment

Thermal Imaging -

Thermal imaging cameras are a fast, effective and affordable leak detection tool. A thermal roof survey will identify anomalies within your roof and quickly identify defective roof areas harbouring dangerous faults.

thermal imaging camera