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RE: glulam shrinkage

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FWIW there probably is change, however to date, for design purposes, I've had no problem with ignoring changes in engineered product - they are, after all, mainly resins ...
 
Thor A. Tandy P.Eng, MIStructE, Struct Eng
Victoria, BC
Canada
 
-----Original Message-----
From: Daryl Richardson [mailto:h.d.richardson(--nospam--at)shaw.ca]
Sent: Friday, August 17, 2007 6:36 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: glulam shrinkage

David, Robert,
 
        Actually, a gluelam may increase or decrease in volume with changes in moisture content.  This may be affected by the relative humidity on the environment where it is located.
 
        Just don't ask me how much.
 
Regards,
 
H. Daryl Richardson
----- Original Message -----
Sent: Friday, August 17, 2007 6:57 PM
Subject: Re: glulam shrinkage

Being engineered timber fab'd from KD lumber I would expect close to no shrinkage

APA link

http://www.apawood.org/glu_level_b.cfm?content=prd_glu_bui_floors

cheers
Bob

On 8/17/07, David Topete <dtopete(--nospam--at)gfdseng.com> wrote:

How much shrinkage is expected of a glulam beam?  Any ideas?

David A. Topete, SE