ELECTRONIC LEAK DETECTION (ELD)
Terra-Petra employs state of the art Electronic Leak Detection (ELD) technology to detect leaks for waterproofing membranes installed at roofs, plaza decks, pools, water features, covered reservoirs and other waterproofing applications in accordance with ASTM Standards (ASTM D7877-14).
The ELD testing can be used in lieu of, or in concert with traditional flood testing. However, flood testing, historically speaking, is more expensive, time consuming and provides for less accuracy and assurance than the ELD system.
Terra-Petra’s ELD technology uses a minimum of water and time and provides absolute confirmation that a membrane is watertight. This system can be used on horizontal and vertical surfaces and can also locate hard to find leaks in older membranes.


THE ADVANTAGES OF ELD
More Accurate, Timely And Cost Effective
Electronic Leak Detection (ELD) offers distinct advantages over other types of leak detection methods. While most other methods can only detect a link after moisture has already built up under the membrane, ELD can test any type of roof wet or dry, and detect even the smallest leaks (invisible to the naked eye) before any damage has been done, saving property owners significant money and hassle.
Additionally, since alternative methods are only looking for moisture, they tend to not reveal the actual location of the leak, only where water has built up. ELD on the other hand finds the actual pinpointed spot of the leak, allowing a correct repair to be performed, ensuring no future leaks and water damage.
Terra-Petra ELD Services Include:
All of our ELD services are performed by experts on our staff, and are completed according with ASTM Standards. See below for a list of Terra-Petra’s Electronic Leak Detection capabilities:
- Confirms conclusively if a horizontal or vertical membrane is water tight
- Locates breaches during installation so repairs can be made immediately
- Locates breaches caused by trade damage prior to the placing of overburden
- Provides a safe, precise, cost effective, and conclusive substitute for flood testing
- Pinpoints hard to find leaks in older membranes
- Delivers quality control through third party verification
- Testing conducted by Certified and Accredited Inspectors
Contact us today for more information or a request for consulting services.
Terra-Petra ELD Clients / Projects
Below are just some of the notable projects and clients where Terra-Petra has completed Electronic Leak Detection (ELD) Testing. Contact us today to speak to one of our experts at our ELD services.
- LAX Midfield Satellite Concourse (MSC) North – Exterior Walls
- LAX MSC Passenger & Utilities Tunnels – Exterior walls and Lids
- LAX Gateway Project – Exterior walls
- Pilgrim Schools “Field of Dreams” project – Podium Deck
- 8600 Wilshire Blvd. – Gardenhouse Condominiums – Balconies, Podium Deck, planters
- 400 S. Broadway – PERLA on Broadway – Water tank coating
- 6150 Laurel Canyon Blvd – Alexan NoHo West building B – Podium Deck, planters
- 8778 W. El Tovar Pl., West Hollywood Park – Podium Deck/Roofing, ramps
- 1341 Vine St, Los Angeles – NETFLIX on Vine – Podium Deck & Planters
- 373 Diablo Rd, Danville, CA – Alexan Downtown Danville Apartments – Podium Deck & Planters
- Delta Sky Way at LAX – Terminals 2 & 3 – Runway Apron, Pet Relief areas, Outdoor lounge
Electronic Leak Detection (ELD) Image Gallery
Electronic Leak Detection Equipment Videos
Detec Systems IntegirScan
How ELD testing works (with Detec’s TrueGround Conductive Primer)