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RE: Moisture protection for deck?

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Hi, Ricardo.

Not using pressure treated lumber or sheathing.

Yes, the deck is attached to the structure at the foundation level. I am 
using PTDF for sill plates where the deck joists are attached. The girders 
supporting the deck joists will be Alaskan Yellow Cedar GLBs.

I don’t know if I can insert an image on this listserv, but here goes:


Thank you,

T. William (Bill) Allen, S.E. (CA 2607)
A L L E N   D E S I G N S
Consulting Structural Engineers
33171 Paseo Cerveza, Suite 221
San Juan Capistrano, CA 92675

-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of Ricardo Gonzalez Sent: Friday, January 10, 2014 9:58 AM
To: seaint-seaosc(--nospam--at)
Subject: RE: [SEAINT-SEAOSC] Moisture protection for deck?

Hi Bill,

Enclosing the deck from the underside would promote decay/rot unless the 
framing envelop is fully insulated or properly vented.  You are likely 
aware of that.  Are you using pressure treated lumber and sheathing?  Is 
the deck attached to a structure or free standing?

Ricardo G. Gonzalez, P.E.

C S W | S T 2

CSW/Stuber-Stroeh Engineering Group, Inc.

45 Leveroni Court, Novato, CA  94949

Civil Engineering ∙ Structural Engineering Planning ∙ Land Surveying & 

main: 415-883-9850          fax: 415-883-9836

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