MyFloridaCode.com

As far as structural code requirements, you can find them in Section
R502.2.1 of the Residential Code and 1604.8.3 of the Building Code (both
2004). 
The issue is that you have to fasten to the "primary structure", and
that it has to be able to be verified during inspection.  That may be
the determining factor right there.  If you don't remove the stucco, how
does the inspector verify that the lag bolts are hitting the trusses.
Then again, even if you do remove stucco, how do you tell once the band
is installed?
Also, with a non-structural material like the insulation for the EIFS
between the band and the truss, that puts an additional bending force on
the lag bolts that may not have been considered in the design. Probably
need to check with the designer.

Randy Shackelford
Simpson Strong-Tie
800-999-5099
rshackelford at strongtie.com


-----Original Message-----
From: codetalk-bounces at myfloridacode.com
[mailto:codetalk-bounces at myfloridacode.com] On Behalf Of Ken Rodgers
Sent: Tuesday, January 20, 2009 9:19 AM
To: codetalk at myfloridacode.com
Subject: Re: [Florida Code Talk] Attaching Deck to Stucco

The structure is a new D.R. Horton home wood frame with (I'm assuming)
EFIS stucco.  Plans call for two lag bolts at each floor truss.  I agree
that finding these trusses with the stucco left in place won't be simple
but shouldn't be impossible either.  It will however require finding
them with the "manual stud finder" (a small drill bit) which of course
just opens up more holes to moisture.  Overall, I'm confident I can keep
the waterproof integrity of the structure either way.  My primary
concern at this point is the structural integrity for safety purposes.
I'm just not comfortable having the stucco between structural members.

Ken

-----Original Message-----
From: Eric Kuritzky [mailto:kuritzky at bellsouth.net]
Sent: Monday, January 19, 2009 10:41 PM
To: codetalk at myfloridacode.com; Ken Rodgers
Subject: Re: [Florida Code Talk] Attaching Deck to Stucco

There is no simple answer.

Money is the ultimate answer.  Because, to do it right will require
money, and skill.

Stucco on what? 
Frame? 
Block? 
What kind of sheathing (if frame) is under all this?

Remember, if the system is solid, and doesn't leak now, anything you do
to it will increase the possibility of a failure.

And caulking is not the answer to anything.

Leaving the stucco in place may very well be the best approach.

There are a sufficient quantity of anchors available to secure the
ledger through the stucco.  No matter how you look at it, you're putting
holes in the system; either through the stucco, or through the ledger.
And the holes go all the way into the structure.

If you peel off the stucco, you create at least two flashing conditions,
AND have broken the existing water-proof barrier.  You'll need to flash
the top of the ledger, and the bottom.  The ledger, wood, then becomes
the barrier to whatever is left behind the stucco.

And frankly, it could very well be a code problem.  It's both structural
and water intrusion related.

Anyway, good luck with it.  Each problem is unique, and even with more
information, this group will probably come up with several good ways to
attend to this.

Eric D. Kuritzky, Architect, CBO
Orlando


On 1/19/09 11:13 PM, "Chandler Knowles" <chandlerknowles at att.net> wrote:

> What kind of stucco?  Cementicious?  EIFS?  How thick?
> 
> You are indeed correct that the proper flashing will be the key which 
> ever way you go.
> 
> Chandler Knowles
> Pensacola, FL
> 
> ----- Original Message -----
> From: "Ken Rodgers" <Ken at artisanbilt.com>
> To: <codetalk at myfloridacode.com>
> Sent: Monday, January 19, 2009 9:02 PM
> Subject: [Florida Code Talk] Attaching Deck to Stucco
> 
> 
>> All,
>> 
>>  I know this is not really a code question (unless someone has a code

>> reference that applies) but I would still appreciate your expert 
>> opinions on the subject.  I was asked to give a bid on building a 
>> second story deck
to
>> a
>> house with stucco covering.  Based on research and my own 
>> inclinations, I feel it would be best to remove the stucco where the 
>> ledger board will be so it (the ledger board) can attach directly to 
>> the structural members of
the
>> house (e.g. - floor trusses).  It seems to me that leaving the stucco

>> in between the two would not be as structurally sound since it could
compress
>> over time and with movement of the wood and make for a loose joint.  
>> It could also cause stresses and cracks in the stucco.  Obviously, 
>> proper flashing will be a key factor in either case.  Any opinions, 
>> experiences, etc are appreciated.
>> 
>> 
>> 
>> Ken
>> 
>> 
>> 
>> Ken Rodgers
>> 
>> ArtisanBilt Construction
>> 
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Eric D. Kuritzky, Architect, CBO



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