Always the right procedure for your flat roof

Professional and non-destructive leak detection and moisture measurements with our certified measuring methods help avoid cost-intensive restructuring work and extend the service life of your flat roof. The majority of roof surfaces can be checked perfectly using the HV-SLD (High Voltage-Sensor Leak Detection) and LV-SLD (Low Voltage-Sensor Leak Detection) methods.
For other roof surfaces, other techniques and processes may need to be combined to achieve the best result.

HV-SLD Dry Locating Procedure

High Voltage Sensor Leak Detection, also called dry test method. In the dry location method, voltage fluctuations indicate faults in the sealing level.
Damaged areas can be localised with pinpoint accuracy using this method and documented in an inspection report.

LV-SLD Wet Locating Procedure

Low Voltage Sensor Leak Detection, also called pulse current method or wet test method. A soaked ceiling construction conducts electricity very well.

The electric pulse travels through the soaked ceiling construction to the point where the water penetrates the roof. The exact point of damage is determined via the current flow between two probes by means of intensive roof watering.

IP-SLD humidity measurement

IP sensor leak detection, also called humidity measurement by means of impedance measurement. The Dec-Scanner detects and evaluates moisture conditions in roof systems by non-destructively measuring electrical impedance. Moisture testing can provide valuable insights at the time of construction, for warranty verification and for quality control as part of an ongoing maintenance programme.

SG-SLD fog and smoke process

The SLD fog and smoke method is ideal for checking connections on loaded surfaces.

The best price-performance ratio

Each method offers benefits under specific conditions. All methods can be combined very well to achieve the best testing results. All leaks and potential weak points are pinpointed by our technicians. The damaged areas are also documented in a detailed inspection and measurement protocol and illustrated using drawings, as well as photographs as a visual work plan.

On this basis, the cost-saving repairs of the damaged areas can be initiated immediately by the specialist company.

Prediction about the test accuracy

Already in the run-up to the test, a unique classification procedure for flat roofs (RTRS) can provide you with an initial forecast of the accuracy of the test. All leaks and potential weak points are detected with pinpoint accuracy, documented in a detailed test and measurement report and presented as a visual work plan.

On request, we also offer other procedures such as thermography, smoke and tracer gas procedures as well as camera inspection of drains and connections.