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Re: Moisture protection for deck?

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Is the space under the deck going to be habitable or a patio or something
used by the owners? Why is the bottom being sheathed?

Stucco is an OK moisture barrier for wall systems, at best. Do no use it
for this application.

Andrew Kester, PE

On Thu, Jan 9, 2014 at 2:07 PM, T. William (Bill) Allen, S.E. <
bill(--nospam--at)> wrote:

> I am designing a pretty large wood deck over a slope in Laguna Beach, CA. 
> I am concerned about moisture intrusion for the underside of the deck. I 
> am planning to sheathe the bottom, but is there something I can apply 
> over the sheathing which would have a good chance of sealing the deck? My 
> first thought was stucco, but there has to be something 
> better/cheaper/easier. It will not be seen by anyone not directly under 
> the deck. 
> Thank you,
> T. William (Bill) Allen, S.E. (CA #2607)
> Consulting Structural Engineers
> 33171 Paseo Cerveza, Suite 221
> San Juan Capistrano, CA 92675
> V (949) 248-8588*F (949) 209-2509

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