Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: Plywood Shear Wall Nailing

[Subject Prev][Subject Next][Thread Prev][Thread Next]
David,
 
Thanks for this information. Also, thanks to others for their input. As someone mentioned APA has a technical bulletin addressing this issue which I received via email after calling APA @ 253-6207407. APA was very helpfull.
 
Larry Hauer, S.E.
 
> Date: Wed, 20 Jan 2010 13:02:13 -0800
> From: mrkgp.se(--nospam--at)gmail.com
> To: seaint(--nospam--at)seaint.org
> Subject: Plywood Shear Wall Nailing
>
> I was part of an investigation where OSB panels had been exposed to
> rain. The swelling appeared to have receded but not 100% nails are now
> flush. Laboratory tested panels, removed from the building, demonstrated
> a 20% loss of strength. Test of edges with and with out water stains
> were compared to determine the results. A minimum number of samples were
> enough to demonstrate a loss but not to rely on the amount of loss.
>
> Within a few months of finishing over wet sheathing and framing, screws
> and nails will be discovered pushing out of finishes or plaster popping
> off connector heads. The visual affect can initiate complaints.
>
> David Merrick
>
> ******* ****** ******* ******** ******* ******* ******* ***
> * Read list FAQ at: http://www.seaint.org/list_FAQ.asp
> *
> * This email was sent to you via Structural Engineers
> * Association of Southern California (SEAOSC) server. To
> * subscribe (no fee) or UnSubscribe, please go to:
> *
> * http://www.seaint.org/sealist1.asp
> *
> * Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you
> * send to the list is public domain and may be re-posted
> * without your permission. Make sure you visit our web
> * site at: http://www.seaint.org
> ******* ****** ****** ****** ******* ****** ****** ********


Hotmail: Trusted email with powerful SPAM protection. Sign up now.