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Re: Plan review

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Sounds like you'll to coordinate with the mech'l/plumbing consultant to determine how much water build-up there will be based on the 3 in/hr and the drainage discharge rate.  If it's a flat roof with parapet, how much water could potentially build-up if even the overflow drain/scupper if blocked...  Good luck.

On Wed, Jun 9, 2010 at 7:29 AM, Jason Christensen <jason(--nospam--at)> wrote:

I just received a city structural plan review from Reno, so if there are any of you from that area please help me out. 


One of the comments was: “Ammended Appendix D UPC 2006 of the City of Reno requires 3” per rain fall calculations for roof design”.  I looked up this amendment and see that it is a plumbing code that requires 3”/hour of rain fall.  I have combed though IBC and ASCE 7 and cannot find any requirement that deals with rainfall on roof loading other than Chapter 8 of ASCE 7 and that section does not deal with a inches/hour rainfall.   I have called the city reviewer for a few days now and cannot get a return call, so I am hoping someone on this list from Reno area might know what this is about.




David Topete, SE