What is EFVM testing?

EFVM ® is a low-voltage leak test method that creates an electrical potential difference between a non-conductive membrane surface and conductive structural deck or substrate, which is earthed or grounded. EFVM ® is unique in its ability to test the integrity of waterproofing membranes with overburden or ballast.

How does EFVM work?

HOW DOES EFVM® WORK? An electric field is created by applying water on the surface of the membrane and using the water as a conductive medium. The EFVM® equipment delivers a low voltage pulsating electrical charge between the non-conductive waterproofing membrane and the conductive structural deck.

What is electronic leak detection?

ELD (Electronic Leak Detection) is the industry term used to define products and services that test and monitor for leaks or moisture presence in waterproofing membranes and roof assemblies.

What is electronic field Vector Mapping?

Electric field vector mapping, or EFVM®, is a type of non-destructive testing used to locate a breach or void in a waterproofing membrane. A low-voltage electrical current is used to create an electrical potential between a non-conductive membrane and a grounded conductive deck or substrate.

How is leak detection done?

A leak detection system monitors the flow of water through a pipeline. When abnormal behavior is detected, the system cuts off the water flow to the entirety of the household by closing a valve within the leak detector. Leak detection systems are usually installed at the water’s point of entry into the home.

How can you tell where a water leak is coming from?

6 Ways To Find Hidden Water Leaks

• Check your water meter. One of the best ways to tell if you have a leak in some part of your plumbing is to check the water meter.
• Look at your usage.
• Monitor your bill.
• Grab some food coloring.
• Check exterior usage.
• Use common sense.

How do plumbers check for water leaks?

Plumbers have leak detection equipment that can quickly and accurately find the source of leaks. Even if the leak is under concrete or behind a wall. Ground microphones or listening discs are acoustic listening devices that a plumber uses to find leaks.

Can plumbers detect leaks?

Unless the leak springs up in one of the few visible pipes in your home, you probably won’t know where leaks are located. Using the techniques below, licensed plumbers can find exactly where leaks are occurring so they can accurately and quickly repair them.

What is the best water leak detection equipment?

If you’re simply looking for something that can let you know if there’s a leak, then the best water leak detector is the Flo by Moen Water Leak Detector. It only costs about $50, and has two sensors as well as an alarm that sounds if water is detected.

What does EFVM stand for in leak detection?

EFVM® now provides an efficient and highly accurate leak detection solution. EFVM® is a low voltage test method that creates an electrical potential difference between a non-conductive membrane surface and a conductive substrate, which is earthed or grounded.

Is the leak detection system available in Australia?

Now available in Australia, the EFVM® leak detection system makes flood testing waterproofing membranes a thing of the past. Initially introduced to the United States market in 2001, the EFVM® System is now used extensively around the world (see world projects).

Which is the most accurate electronic leak detection service?

Detec’s IntegriScan quality control testing service is the most advanced and accurate Electronic Leak Detection (ELD) / Electronic Breach Detection testing method available. The IntegriSscan confirms waterproofing membranes are free of breaches, holes or seam voids during construction. The IntegriScan complies with ASTM Practice D8231-19.

How is vector mapping used for leak detection?

Electronic Field Vector Mapping (EFVM) is a cutting edge technology that is redefining the art of leak detection and quality assurance in low-slope roofing and waterproofing systems. Vector mapping pinpoints breaches in the roof membrane by tracing the flow of an electric current across the membrane surface.