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

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Roof Membrane Uplift Resistance Testing

Elevating Roof Security with Scientific Analysis


Roof Membrane Uplift Resistance Testing | Wind Uplift Testing

Unlike a building’s interior components, roofs are susceptible to severe weathering, foot traffic, expansion, contraction and abuse, which can result in accelerated roof system degradation. To assure a roof system performs optimally and meets warranty compliance, roof membrane uplift resistance testing is the industry accepted international standard that:


1. Identifies installation and design deficiencies that could lead to premature degradation, catastrophic building damage on the interior and exterior and may even pose a danger to occupant safety.

2. Remaining life expectations

3. Provides security in knowing your installed asset complies with the designed wind load.

4. Meets the manufacturer’s warranty requirements and the Texas Department of Insurance requirements.

5. Is a requirement of some insurance providers to determine the quality of an insured asset.


Z6 Consulting Testing Capabilities

Z6 Consulting is one of the few companies in Texas who are ISO/IEC 17025 accredited in roof uplift test FM Global 1-52 and ASTM E907. As such, we are uniquely positioned to assure your roof meets all applicable building codes and insurance/warranty requirements.

Z6 set out to be the leader in roof uplift testing by building our own improved version of a typical testing chamber. Uplift testing used to be referred to as “bubble test” as it was often conducted with a high-strength skylight dome. FM Global was on hand during our “maiden voyage” and was so impressed with our chamber design; they suggested we put the system on the market. Z6 built our roof uplift chamber with the mindset of eliminating the controversial “spiking” test pressures issue. We do this by showing the readings for pressure and deflection in a real-time computer generated graph during the test and on the report. Our custom roof uplift chamber, calibrated tooling and extensive protocols evaluate and record pressure and deflection measurements in real-time.

Performance Assurance

An uplift chamber test is nondestructive on properly installed roofs and utilizes our custom 5’x5’ aluminum chamber that simulates wind uplift pressure by suctioning critical areas of the roof one pressure step at a time to the required pressure.

The following process shows how negative pressure testing is conducted using an uplift chamber:

Step 1: The uplift chamber is placed on a randomly selected critical area of the roof & obtain an airtight seal between the roof & chamber.

Step 2: A 10-foot perimeter is established & isolated to restrict foot traffic to ensure any movement from walking is eliminated during the test.

Step 3: A pre-established series of testing pressures is initiated with each pressure held for one minute until the test pressure is reached.

Step 4: The required number of test specimens per standard are tested at the required design pressure for the corresponding zone.


Roofs typically fail uplift testing one of three ways:

1. Exceeding the allowable deflection,

2. A sudden ballooning of the cover, or

3. Roof fastener failure with mechanically attached system

Allowable deflection of the roof cover for a FM Global 1-52 test is ¼ – ½ inch (6.35-12.7mm), depending on the roofing substrate nd test pressure. The ASTM E907 test allows for a 1 inch (25.4 mm) deflection. Considering that the allowable deflection is so minute, especially for the FM Global test, Z6 has taken every effort to remove human error by investing in technology that gathers data digitally instead of relying on analog dials and manual recording of the data. Our digital system exceeds the requirements in the accepted standard which allows deflection in roofing to be measured via dial indicators. Z6’s digital indicators provide calibrated digital readings up to .001” while tracking and recording test pressures throughout the test.

Should an obvious failure occur, or if excessive deflection is recorded, per the standard, the section of the roof that failed must be carefully cut out to determine the cause of the failure.





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

Elevate Your Building Experience With Us


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.