Peer-to-Peer Standards Exchange

I am designing a 560,000 square foot building with solar panels on over 75% of the roof area.  Is ACSE 7-16 section 29.4.3 the appropriate provision to use for accounting for the wind load applied to the MWFRS or should another section of 7-16 be used, i.e. 29.4.1?  Section 29.4.3 seems more apt for C & C loads than for MWFRS loads, especially considering the graph in Figure 29.4-7 is limited to 5,000 square feet for the Normalized Wind Area. 

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Steven Ray P.E., M.ASCE
Structural Eng
LJB Inc.
Miamisburg OH
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Per Section 29.4.3, roofs, and other portions of the MWFRS must be designed for two cases:

1- The case where collectors are present.  The loads from section 29.4.3 are applied to the roof over the footprint of the panels, and the standard roof wind loads are applied elsewhere.

2- The case where collectors are not present, in which case the standard loas are used.

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Ronald Hamburger, SE
Consulting Principal
Simpson Gumpertz & Heger
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