The 2007 IBC, §1504.5: "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."

The ANSI/SPRI ES-1 document can be downloaded in its entirety for free from SPRI.