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Equipment Used

Equipment Used

A Stormtech Systems consists of only name brand quality parts manufactured by leading U.S. manufacturers including Hilti, Union Wire Rope and Crosby. The products used by these leading manufacturers were used for test purposes and are included in every Stormtech System™ purchased.

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Method of Testing

Method of Testing

Testing was performed as a simulation of reverse wind pressure on a 1/4 scale model house. A Stormtech System™ is designed to transfer external wind loads applying pressure to the home or building to the foundation. The testing performed applied the same methodology for applying pressure to the foundation by creating uplift air pressure inside the structure.

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Building the Frame

Building the Frame

A 28×12 framed home was used for our test purposes. The specifications were a 6/12 pitch roof, standard 2×6 trusses placed on 24” centers and 2×4 stud walls. The trusses were not nailed or fastened down to the walls of the structure to test the Stormtech System™ itself.

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Installing the System

Installing the System

Pre-made brackets, cables, anchors and turnbuckles were installed within the structure. The cables are run through the structure from end to end. This provides the patented system that permits roofs and structures to withstand the wind loads that occur during typical wind storms.

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Inspecting the System

Inspecting the System

As shown on the photo, plastic was placed over the trusses to provide an air tight seal for the internal air pressure test. During this phase, all brackets and turnbuckles were inspected for proper installation. The cables were tightened to 700+ pounds of pressure which was measured by a dynometer.

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Applying the Roof

Applying the Roof

Because the test completed applied internal air pressure, the roof had to be applied to withstand the simulated wind speed that creates the internal pressure. This was done to ensure the pressure was applied to the Stormtech System™ and not the structure itself. The roof of the structure was 5/8” OSB plywood and was applied with 2” screws.

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Applying Roof Bracing

Applying Roof Bracing

The plywood sheathing was then braced using 2×4 studs to simulate roof coverings.

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Uplift Pressure Test

Uplift Pressure Test

The test shows air pressure building up within the structure that causes lift in the roof. The trusses are not fastened down and the test is relying solely on the Stormtech System™. The plastic is intentionally left loose on the outer rim of the structure to avoid tearing while testing.

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Testing Lift Measurement

Testing Lift Measurement

A level, as shown in this photo, was used to measure lift during the testing process.

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Monitoring the System

Monitoring the System

The testing included three cameras within the structure and two cameras outside the structure. Air pressure gauges were used to show pounds of pressure per square foot inside the structure.