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.