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RE: Moisture protection for deck?

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Hi, Andrew.

No, not habitable. There is a slope below.

The reason for the sheathing is that the deck joists are at 24" and the 
contractor is concerned about the lath spanning that far.

What would you recommend?

FWIW, I've seen stucco soffits quite often.

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
www.AllenDesigns.com

-----Original Message-----
From: seaint-seaosc(--nospam--at)mail-list.com [mailto:seaint-seaosc(--nospam--at)mail-list.com] On 
Behalf Of Andrew Kester Sent: Friday, January 10, 2014 9:05 AM
To: seaint-seaosc(--nospam--at)mail-list.com
Subject: Re: [SEAINT-SEAOSC] Moisture protection for deck?

Bill,
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
Florida

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

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