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RE: COMMERCIAL weight roof deck galvanizing

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Verco's roof deck catalog indicates G90 as "Commercial" and G60 as "light
commercial".  However, safest way in the future is to spec to ASTM A653 and
call out coating as G90.

> ----------
> From: 	Tedrick, Robert C
> POA02[SMTP:Robert.C.Tedrick(--nospam--at)poa02.usace.army.mil]
> Sent: 	Tuesday, September 22, 1998 3:16 PM
> To: 	'seaoc(--nospam--at)seaoc.org'
> Cc: 	Tedrick, Robert C POA02
> Subject: 	COMMERCIAL weight roof deck galvanizing
> 
> We have a contract out with the following note on the first structural
> sheet:
> 
> "COMMERCIAL WEIGHT GALVANIZED FINISH ON ALL DECKING."
> 
> The decking in question is mostly 1.5", 20 GA., 6" rib roof decking (VERCO
> B-Formlock).
> 
> I would appreciate any input on what your interpretation of "COMMERCIAL"
> is.
> I have always considered commercial to be G90 and "light commercial' to be
> G60.  The Contractor says that G60 is what is meant.
> 
> Thanks in advance for the help.
> 
> Robert Tedrick, P.E. (Structural)
> 
> 
>