The International Building Code (IBC) includes the following:
“1505.5 Edge securement for low-slope roofs. Low- slope membrane roof system metal edge securement, except gutters, shall be designed and installed for wind loads in accordance with Chapter 16 and tested for resistance
in accordance with ANSI/SPRI ES-1, except the basic wind speed shall be determined from Figure 1609.”
Designing roof edge systems that meet ANSI/SPRI ES-1 Wind Design Standard is not just a good idea, it’s
now the law. We’ve been designing to that standard for years. In fact, we championed the development of the standard with SPRI, the sheet membrane and component suppliers to the commercial roofing industry trade association.
We embrace this standard because it means a safer, more wind resistant roof edge, which leads to a safer, longer lasting roof. In fact, 59% of low-slope roof failures begin at the roof edge, according to Factory Mutual*. It’s
critical that we design and test our products to protect owner investments, and we promise to continue to meet these high standards.
Hickman products are now stamped with “ES-1 tested”
for easy visual identification. Certificates of Compliance are also issued by Hickman as proof that our products meet the ANSI/ SPRI ES-1 standard. Our in-house testing capabilities allow us to test and issue a Certificate of Compliance on custom designs in addition to our standard products.
* A study of 145 FM Global windstorm losses involving built-up roof (BUR) covers showed that 85 (59%) occurred because the perimeter failed. Source: FM Global Property Loss Prevention Data Sheet 1-49, ‘Perimeter Flashing’