What We Do
Now available in Australia, the EFVM® leak detection system makes flood testing waterproofing membranes a think 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).
Waterproofing membrane defects can be caused during or after
installation, i.e. mechanical damage caused by others, workmanship
defects, material defects, design faults, weather related defects
or membrane deterioration.
EFVM® now provides an
efficient and highly accurate leak detection solution.
What is EFVM®
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.
By applying water on the membrane surface and using the water as
a conductive medium, an electric field is created and a breach in
the membrane creates a vector (ground fault connection).
The EFVM® technician reads the electric flow
travelling across the membrane mapping the breaches with pin point
accuracy.
Advantages of the EFVM® testing system
- Exact pinpointing of membrane breaches
- Non-destructive to the membrane
- Can be performed on sloped structural decks
- Membrane defects can be repaired and retested without delay to
the construction schedule
- Limited use of water required for the EFVM®
test
- Eliminates unnecessary removal of the overburden to locate a
membrane breach
- Membrane performance can be monitored during its lifespan
through the overburden
Light indicator on Green Roof
Where EFVM® can be utilised
- Garden Roofs
- Roofs with ballast
- Roofs with paving stones
- Exposed membrane roofs
- Non-insulated and insulated roof systems
- Inverted roof systems
- Parking garages/Parking decks
- Pond/water container liners
- Swimming pools
When EFVM® can be utilised
- Upon completion of the installation or repair of the
waterproofing membrane
- Prior to the expiration of warranties
- Annually, to detect any membrane defects at an early stage to
prevent costly water damage.
Technicians report
Our fully trained and certified technicians complete the
EFVM® integrity test by conducting a visual inspection
of all wall junctions, perimeter details and membrane penetrations,
then providing CAD drawings, picture documentation and a written
report detailing the locations of the breaches.
Greenroofs
EFVM® is unique in its ability to test the integrity
of waterproof membranes without needing to remove the
overburden.
This non-destructive method is important for greenroof systems
because the waterproof membrane is effectively fully submerged in
water posing a greater risk of a breach.
Many large scale greenroof developments now utilize EFVM®
prior to and after overburden placement. EFVM has been successfully
utilized with soil more that 1m deep!!
Leaks happen.
Whether your property is new or old, have it checked by ILD® today
to prevent costly water damage tomorrow.
» Click here to
view the ILD Australia brochure