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Re: Green Roof Live Loads

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How are you defining "green roof"? Is there a garden growing on an
area of the roof or is it just utilizing solar panels (for instance)
to help achieve a Leed rating?

On Tue, Nov 4, 2008 at 4:48 PM, Wesley Werner <wwerner(--nospam--at)> wrote:
>     I am designing an office building with a green roof. The roof is to be
> open to employees who want to use it for a picnic area. Can I consider it a
> deck and use the same live load as the occupancy served (50 psf), or do I
> have to use the provisions for roof gardens which is 100 psf? The 100 psf
> seems extreme to me since if all of the companies employees were on the
> roof, the total load would only be about  27 psf. (400 people x 200 lbs
> (conservative)/3000 sq ft). The current picnic area is hardly ever used, and
> the only access to the area will be stairs.
> Wesley C. Werner

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