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RTU load on existing roof

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Lot2Learn

Lot2Learn

Structural
Joined
May 8, 2011
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30
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New Roof Top Unit load on an existing roof would be considered dead load, right?
 
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Yes.

But the snow on top of the RTU, and the drifted snow around the RTU, would be live load.

DaveAtkins
 
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Dave,
Do you interpret ASCE7 section 7.8 to say that for most mechanical units (less than 15' long), drift can be ignored?

Thanks
 
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