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Steel Joist Roof Framing Economy Question

Steel Joist Roof Framing Economy Question

Steel Joist Roof Framing Economy Question

(OP)
What are some rules of economy you use for steel joist roofs?  Maximize spacing?  Use heavier joist to eliminate special bridging requirements?   

RE: Steel Joist Roof Framing Economy Question

I follow the manuf. recommendations for economy.  A company like Vicwest has done several tables up for different loadings and most economic joists.

RE: Steel Joist Roof Framing Economy Question

Start with the depth (in) equal to approx 0.7 times the span (ft). For eg. a 30' span would have a most economical depth of about 0.7 x 30' = 21" say 22"...

Dik

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