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Metal Roof Deck

Metal Roof Deck

Metal Roof Deck

(OP)
We surveyed a building that was constructed in the mid-1950's in southeastern PA.  The roof over the building was a 7 1/2" deep metal deck than spanned up to ~29'.  It appears to match up with the H7.5 designation that was previously manufactured by USD, but when we measured the deck thickness, it came out to be about 14 gage - which wasn't offered in the H7.5.

We found a set of drawings that indicate that the deck is "#5 deck".  I cannot find anything on it.  Does anyone have any information on that type of decking?

RE: Metal Roof Deck

Have you tried contacting the Steel Deck Institute (http://www.sdi.org)?  They may have historical data.

RE: Metal Roof Deck

(OP)
I've looked at SDI's website and noticed that they don't appear to offer the review services like SJI does for joists.  I did continue to search online and found a link to a Robertson Catalog that includes their #5-75 decking in thicknesses up to 12 gage.  I found that info through this site (thanks JedClampett & SlideRuleEra) and think I can complete this analysis with it.

Thanks for the suggestion!

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