In 1998, SPRI published its first edition of ANSI/SPRI ES-1,
"Wind Design Standard for Edge Systems Used With Low Slope Roofing
Systems." With the incorporation of ANSI/SPRI ES-1 into the
International Building Code, 2003 Edition (IBC 2003),
compliance with ANSI/SPRI ES-1 became a building code
Although ANSI/SPRI ES-1 has existed for more than 10 years and
been a building code requirement for more than five years, based on
questions received by NRCA's
Technical Services Section, ANSI/SPRI ES-1 still does not appear to
be widely understood. Also, a certain amount of misinformation
regarding ANSI/SPRI ES-1 and its implementation has been
circulating in the U.S. roofing industry, which further complicates
If you are involved with the design or fabrication of metal roof
edge flashings or the design or installation of low-slope membrane
roof systems, you need to know about ANSI/SPRI ES-1.
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