Hundreds of tests. One purpose.
Go behind the scenes
Testing the limits
Water Test
Our water test does more than simulate a little rain. It simulates 8 inches of rain. Per hour. And with 55 mph winds. We forcefully spray water at our windows while applying negative pressure to the backside to identify any weak points in the sill, jamb liners, head jamb, and corners to make sure homes stay dry. And our standards are tough. Like, not-a-single-drop-can-get-through tough.
*Tested to NAFS. Performance values vary across product lines. See your local code official for building code requirements. No water penetration” refers to the pass/fail criterion during the specified test and pressure cycles. Test conditions and performance requirements vary by product and applicable test standard. Actual field performance varies based on product, installation and conditions. See performance and warranty information for details.
Impact Test
Meet the impact cannon. It launches a 2x4 at our windows at 50 feet per second to simulate real-world storm debris. And we don't fire just once, we strike specific spots across the unit, including six inches from the corner. Then we push even further, applying roughly 4,000 pounds of pressure to simulate 180-mph winds. The rule is simple: The inner pane must not be breached.
*Tested to NAFS and TAS 201, 202, and 203. Performance values vary by product. See your local code official for building code requirements. See performance and warranty information for details.
Open-Close Test
This is where we simulate product operation. Not just years of it, but an entire lifetime of it. Windows go up and down, doors swing and slide shut, locks throw and release. Not just 100 times, but 100,000 times. And we don’t just check hinges, we check every moving part. If the product shows any wear, sticking, or unsealing, it’s back to the drawing board.
*Performance values vary across product lines. Actual performance depends on product, installation, use, maintenance and conditions. See performance and warranty information for details.



