ES-1 Calculator


Click Here:  ES-1 Calculator

The ES-1 Calculator is used to determine the roof edge design pressure required to meet the ANSI/SPRI ES-1 Wind Design Standard. We are an authorized fabricator of ANSI-SPRI/ES-1 Rated perimeter edge metal flashing.  Whether you prefer our Megalock, Keylock, or Edgelock products or need a custom-designed and tested part, we are here to assist.  Please contact us today to discuss your ES-1 flashing requirements.


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262 S Shaddle Ave, Mundelein, IL 60060
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