SPRI offers clarification
SPRI would like to thank NRCA for its publication NRCA Guidelines for Complying With Building Codes Using ANSI/SPRI ES-1 as referenced by NRCA Associate Executive Director of Technical Services Mark Graham in "Complying with ANSI/SPRI ES-1," July issue, page 12.
We appreciate NRCA's continued efforts to publicize and explain the need to design and specify code-compliant edge metal. Graham is correct in stating ES-1 calculations are based on ASCE 7-02 and that the International Building Code,® 2012 Edition (IBC 2012) requires loads to be calculated using ASCE 7-10 as required in Chapter 16. However, SPRI would like to again point out the ES-1 load calculations are not referenced in code. What is required by Section 1504.5 of IBC 2012 is perimeter edge metals be " tested for resistance in accordance with Test Method RE-1, RE-2 and RE-3 of ANSI/SPRI ES-1."
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