Metal Roof Deck

[gls4286]

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?

 

[Lazzaroni]

Have you tried contacting the Steel Deck Institute (

http://www.sdi.org)?

They may have historical data.

 

[gls4286]

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!