Zero/Six Consulting, LLC is a multifaceted professional services company specializing in the commissioning of high-performance buildings.

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Electronic Roof Leak Detection (ELD) Services

Bridging Vision with Reality Through Superior Project Oversight

Services

ELD Testing Services

When stripped down to its most fundamental purpose, architecture is about sheltering people from the elements. From this point of view, perhaps the most important part of any building is its roof. Roofs keep us dry…most startling, though, is the fact that, while roofs only make up about 2 percent of construction costs, water intrusion accounts for more than 70% of construction litigation; roof failures and related fallout are often at the root of the issue. So what’s going wrong?

Aaron Seward, Architect Magazine, “When It Leaks It Pours.”

The roof is a costly component of the building envelope with its integrity being a large factor in the efficiency of the building. The issue is that during construction the roof can get damaged by even the most conscientious roofing contractor; nails, screws, workers boots, and dropped equipment and tools can cause dents or tiny holes in the roofing system. These areas then go unnoticed until extreme weather or heavy rainfall reveals minor breaches that can cause major damage and deterioration both on the roof and inside the building.

The issue is that during construction the roof can get damaged by even the most conscientious roofing contractor; nails, screws, workers boots, and dropped equipment and tools can cause dents or tiny holes in the roofing system. These areas then go unnoticed until extreme weather or heavy rainfall reveals minor breaches that can cause major damage and deterioration both on the roof and inside the building.

By pinpointing defects invisible to the eye, Electronic Leak Detection (ELD) has become the most cost effective and useful means of effective for 99% of commercial waterproofing systems. Through a process of detection and isolation, Z6 Consulting (Z6) will thoroughly test the most vulnerable areas of your roof system to identify pinhole leaks and breaches for the most efficient diagnosis. This protects building owners from signing off on defective roof systems and roofing contractors from future call backs or potential litigation. ELD can be used for most every roofing application including green roofs, but can also be applied to parking garages and deck waterproofing on patios, planters, and waterproofing between split slabs.

ELD is the best tool for architects, specifiers, contractors, manufacturers and building owners to test, verify, and monitor the integrity of waterproofing membranes and roof assemblies, resulting in better performing buildings. Damaged areas, once identified, can be repaired, and then retested, immediately.

Low Voltage Vector Mapping

Low Voltage Vector Mapping requires a wet surface which makes it the method-of-choice for green roofs and/or rainy days. Wet surfaces create a conductive medium over the entire surface of the roof. A trace wire is applied to the perimeter of the roof area to be tested. This trace wire is then connected to a pulse generator. From the pulse generator, a ground wire is connected to a penetration in the structural roof deck to complete the circuit covering the testing area. The penetrations and drains in the roof system are then isolated and connected to the perimeter trace wire. The roof membrane acts as a barrier between the electrical circuit. If there are any breaches in the roofing membrane, current will flow through this breech and connect the circuit, detected by a trained Z6 technician utilizing a receiver and a set of probes. The technician traces the sensor’s direction until all breaches are identified.

 

High Voltage testing

High Voltage ELD testing is performed on dry, horizontal and/or vertical surfaces. The Z6 technician connects a ground wire to a penetration in the structural deck. A portable generator with an electrode brush made of highly conductive bristles is utilized to emit an extremely high voltage (low amperage for safety) current to the roof deck. The technician then sweeps over the roof
membrane acting as a barrier with this conductive brush to cover all horizontal and vertical roof surfaces. When a breach is passed over, the electrical circuit is completed and a signal is emitted that identifies the exact location of the membrane breech, regardless of the size.

How It Works

There are two methods of ELD:

Low Voltage Vector Mapping

Low Voltage Vector Mapping requires a wet surface which makes it the method-of-choice for green roofs and/or rainy days. Wet surfaces create a conductive medium over the entire surface of the roof. A trace wire is applied to the perimeter of the roof area to be tested. This trace wire is then connected to a pulse generator. From the pulse generator, a ground wire is connected to a penetration in the structural roof deck to complete the circuit covering the testing area. The penetrations and drains in the roof system are then isolated and connected to the perimeter trace wire. The roof membrane acts as a barrier between the electrical circuit. If there are any breaches in the roofing membrane, current will flow through this breech and connect the circuit, detected by a trained Z6 technician utilizing a receiver and a set of probes. The technician traces the sensor’s direction until all breaches are identified.

High Voltage Testing

High Voltage ELD testing is performed on dry, horizontal and/or vertical surfaces. The Z6 technician connects a ground wire to a penetration in the structural deck. A portable generator with an electrode brush made of highly conductive bristles is utilized to emit an extremely high voltage (low amperage for safety) current to the roof deck. The technician then sweeps over the roof
membrane acting as a barrier with this conductive brush to cover all horizontal and vertical roof surfaces. When a breach is passed over, the electrical circuit is completed and a signal is emitted that identifies the exact location of the membrane breech, regardless of the size.

Why Electronic Leak Detection?

Cost Savings: Testing is completed within hours instead of days required for the traditional flood testing approach.

Non-Invasive: Leaks are discovered without saturating the penetrated area.

Targeted Accuracy: Identify pinhole leaks and breaches for the most efficient diagnosis, saving time and decreasing labor costs.

Quality Control: Ensure quality assurance integrity to certify the watertight, safe, and sustainable performance of new roof membranes.

Eco-Friendly: Reduced water consumption and lower energy bills by not flooding the roof.

Meet LEED Initiatives: Verify green roof membranes prior to installing overburden.

Warranty Compliance: Requirements can be validated through verification, enabling faster hand over.

Reduced Risk: Reduces the possibilities of trapping water under the membrane leading to both wet insulation and mold growth.

Applications

1. Insulated and non-insulated low-slope roof systems (excluding metal-coated and carbon black EPDM membranes)
2. Ballasted roof systems (low voltage)
3. Ponded and flooded roofs (low voltage)
4. Green roofs (hot applied and cold applied membranes)
5. Plaza decks and balconies
6. Horizontal and vertical roof and waterproofing membranes
7. Patios, planters and waterproofing between split slabs
8. Pools and fountains

Portfolio

Projects

Testimonials

Clients

Zero/Six's outstanding professionalism, along with their high level of expertise, has consistently equipped our team with the essential resources needed to ensure the successful completion of our projects.

Laura Lara

Senior Project Manager, The University of Texas

Zero/Six has been successfully providing consulting services for projects with the OFPC South Texas Region for over 8 years, I would not hesitate to recommend and consider them for any future endeavors.

Patrick Lew

Senior Project Manager, The University of Texas

Zero/Six's dedicated staff and ongoing contributions significantly enrich our team, ensuring the delivery of top-quality buildings. We wholeheartedly welcome Zero/Six's involvement in any project.

Mark Kimball

Project Manager, The University of Texas

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FAQ

Questions
What sets Zero/Six’s construction management approach apart?

Our construction management approach is rooted in collaborative partnerships, seasoned expertise, and a future-centric outlook, ensuring each project is not only successfully executed but also stands the test of time.

How does Zero/Six ensure safety during the construction process?

Safety is paramount at Zero/Six. Through rigorous safety protocols, regular site inspections, and continuous team education, we strive to maintain a secure and hazard-free construction environment.

What sustainable practices are integrated into Zero/Six’s construction management services?

We prioritize sustainability by incorporating eco-friendly materials, energy-efficient designs, and waste-reducing practices, ensuring our projects are environmentally responsible and future-ready.

How does Zero/Six tackle unexpected challenges during the construction phase?

With a proactive mindset, we anticipate potential hurdles and devise strategic solutions to ensure smooth project progression, maintaining quality, timeline, and budget integrity.

How does Zero/Six ensure accurate cost estimation and budget adherence during construction?

Our seasoned team employs meticulous planning, transparent communication, and real-time budget monitoring to provide accurate cost estimations. Through continuous oversight and client collaboration, we ensure strict adherence to the budget, driving the project to a successful, cost-effective completion.