Accurate Testing in Any Condition

We use both high-voltage (“dry test”) and low-voltage (“wet test”) electronic leak detection systems, allowing us to survey roofs in rainfall, on damp surfaces, or in completely dry environments. This flexibility means your inspection is never delayed and results remain precise, regardless of the weather.

Dry Roof Leak Detector Test (High-Voltage Method)

The high-voltage “dry test” is designed to locate even the smallest breach in an exposed roofing membrane. It is ideal for flat and low-pitched roofs where the surface is dry. Because the detector scans the entire membrane with a stabilised D.C. voltage, it can identify pinholes, punctures, and installation defects with exceptional accuracy.

Why it Guarantees Results
By energising the membrane surface and monitoring for electrical discharge, the system immediately alerts the operative — both audibly and visually — the moment a breach is detected. This removes guesswork and ensures every defect is found before it becomes a leak.

How it Works
A phosphor-bronze brush applies a controlled D.C. voltage across the membrane. If the voltage reaches the deck through a fault, the detector emits an audible tone and a visible spark from the electrode. This precise reaction confirms the exact location of the breach every time.

Wet Roof Leak Detection (Low-Voltage Method)

The low-voltage “wet test” is designed for conditions where the membrane is damp — including rain, hose-down testing, or naturally wet surfaces. This method is highly effective on exposed membranes and ballasted systems, making it suitable for a wide range of roof types.

Why it Guarantees Results
Water acts as a conductive pathway, allowing the system to trace the exact direction of electrical current flowing toward the leak. This directional flow ensures we can pinpoint the precise entry point of moisture, even when defects are hidden or not visible during inspection.

How it Works
A pulse generator sends a low-voltage (40V) electrical signal through a wire ring circuit laid around the test area. Because membranes are non-conductive, the electrical pulse naturally follows the moisture toward the breach. By tracking this current back to its source, we can identify the exact point where water is penetrating the membrane.

Clear Results You Can Act On

Once we find the source of your roof leak, we provide a detailed, unbiased report with photographs, drawings, and clear explanations of each defect. This puts you in full control of repairs, budgets, and next steps without the sales pressure that comes from roofing contractors.

Unbiased Independent Reporting

Our surveys are completely independent. We do not repair roofs and we do not sell materials. That means every recommendation is honest, accurate, and focused solely on what you need.

Advanced Testing Methods

From high-voltage and low-voltage membrane testing to thermal imaging and moisture mapping, we use the most advanced leak detection equipment available to locate defects quickly and precisely.

Clear Photographic Evidence

Every survey includes detailed photographs, drawings, and a breakdown of each breach so you understand exactly what’s happening on your roof and what needs to happen next.

Flat Roof Electronic Leak Detection Services

Surveyroof can find the point of entry quickly and accurately using our cost effective flat roof electronic leak detection methods and thermal imaging surveys.