Earth Leakage Leak Detection
Often referred to as the “wet test”. This method of flat roof electronic leak detection is ideal for use on any flat or low-pitched roof to identify imperfections in exposed membrane or ballasted systems. This test is performed in wet conditions (rainfall) or with a hosed down wetted test area.
METHOD
A pulse generator emits pulses with a voltage of 40V which are conducted onto the roof structure via a wire ring circuit. Since all roof membranes are more or less non-conducting, the electrical pulse chooses a path across the moisture to where the leak is located and then flows over the damp roof in all directions to reach the ring circuit.
We can now determine the currents direction of flow and trace it back to its source. This source is exactly the spot where moisture is penetrating the roof membrane.
Metal deck with foiled faced insulation and PVC membrane
Holiday Detector Test
Dynamic Area Mapping
Metal deck with tissue faced insulation and PVC membrane
Holiday Detector Test
Dynamic Area Mapping
Plywood deck with foiled faced insulation and PVC membrane
Holiday Detector Test
Metal deck with tissue faced insulation and PVC membrane
Holiday Detector Test
Metal deck with any insulation, Plywood and fleece lined PVC membrane
Holiday Detector Test
Metal deck with any insulation, Plywood and liquid applied
Holiday Detector Test
Concrete deck with tissue faced insulation and EPDM membrane
Visual Inspection
Metal deck with any insulation, 2 layers of bituminous felt and 1 layer felt
Holiday Detector Test
Dynamic Area Mapping
Plywood deck with any insulation, 2 layers of bituminous felt and 1 layer felt waterproofing
Holiday Detector Test
Dynamic Area Mapping
Hot Melt Roof
Dynamic Area Mapping
Inverted roof -ballast
Not Testable Unless Layer Removed
Inverted roof - paving
Not Testable Unless Layer Removed
Ballast roof
Dynamic Area Mapping
Green Roof
Dynamic Area Mapping
Asphalt roof
Holiday Detector Test
Dynamic Area Mapping
Our Services
Surveyroof can find the point of entry quickly and accurately using our cost effective electronic leak detection methods and thermal imaging surveys.
Membrane Condition Surveys
Electronic leak detection and integrity testing on flat roof and waterproofing membranes for Industrial buildings.
Cost Effective Visual Condition Surveys
Ideal for use on any flat or low-pitched roof to identify breaches in exposed membrane or ballasted systems.
Thermal Imaging Leak Detection
An invaluable resource for predictive maintenance to assess flat roofs for saturated insulation and entrapped moisture.
Industrial Roof Surveys
We will identify the condition of your metal roof or pitched tiled roof areas using our Visual inspection methods.
Roof Maintenance Programmes
The fundamental key to achieving maximum roof life with minimal problems.
R.A.I.N. Roof Monitoring System
Continuous, real-time monitoring of roof conditions, analysing humidity and temperature trends to highlight early warning signs before damage occurs.