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Re: Photovoltaic panel weights

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Do you not have some nominal minimum live load (say 20 p.s.f.) to accommodate construction workers and/or other incidental (or accidental) loads?



On 17/03/2014 2:13 PM, David Topete wrote:
That'd be a safe number. Most have an estimated installed weight of about 3 psf. Keep it at 10 psf, especially if you are in the Yukon country...

On Mon, Mar 17, 2014 at 12:34 PM, Drew Morris <dmorris(--nospam--at)> 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. <>
510 L Street, Suite 200 | Anchorage, Alaska 99501
Ph: (907)274-2236 | Direct: (907)270-2240 | Web:
David Topete, SE

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