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Re: Photovoltaic panel weights

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Drew,

     The dead weight of non-ballasted panels is usually a non-issue (3-4 
PSF). The larger problem is usually in how the support systems deliver the 
snow load on the panels to the roof structure below at discrete points vice 
 a simple area load.

- Mike

Drew Morris <dmorris(--nospam--at)bbfm.com> wrote:

> I have a project were the client is interested in putting on a roof
> mounted flush photovoltaic array on a new building.  The client is
> researching through the vendors but i need to get an approximate dead
> load to do some sizing on roof joists.  Any ball park figures I can use,
> 10 psf?
> 
> --
> *
> Drew Morris, PE*| Project Engineer
> BBFM Engineers, Inc. <http://www.bbfm.com/>
> 510 L Street, Suite 200 | Anchorage, Alaska 99501
> Ph: (907)274-2236 | Direct: (907)270-2240 | Web: www.bbfm.com

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