How Does UL 90 Translate to Wind Speed? Uplifts in the Real World
How does UL 90 relate to wind speed in real world situations?
Thad and Adam are back with Jeff Hock on Q&A Mondays to discuss metal roof engineering procedures and how they relate to the real world. Based on testing, how does UL 90 correlate to wind speed?
This is a common question, and today we take a look at what uplift testing is, what the numbers mean, and what you need to know in relation to your specific building and environment.
Topics covered:
►What is UL 90 and what are the procedures? 0:59
►How do these numbers translate to the real world? 2:19
►How does PSF relate to uplifts and wind speeds? 2:56
►How do you know that your system will work in your area? 5:22
►What does an installer need to do differently to adhere to testing? 6:44
►Where can someone get Sheffield’s engineering info? 9:10
►If a system doesn’t pass UL 90, does that mean it’s a bad system? 11:03
►What is beyond the UL 90 test level? 11:57
►What other testing standards are available? 13:09
►How are UL construction numbers different from actual testing?15:19
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