MyFloridaCode.com

Stucco applied in any fashion or method will never work on a frame
structure......the expansion rate of wood is far greater than that of
cement. A block structure expands and contracts at the same rate, thus a
much lower leak rate. As you are out about town.....count the number of
older frame buildings that were finished with masonry stucco, very few! The
ones that were, as all other frame buildings of the time, had lapped 15#
felt. In all the frame buildings I have built, I have never had a leak
because of the 15# felt. Nor I have I ever place stucco over frame......The
Old Timers were not dumb....remember that as there is much to learn from
them!

This stucco issue in simply an attempt to re-invent the wheel......thus up
the learning curve once more concluding to the same old answer, won't
work......A very expense lesson learned once more!

Richard Olds




----- Original Message -----
From: "Jack Wingo" <wing6790 at bellsouth.net>
To: "codetalk" <codetalk at myfloridacode.com>
Sent: Friday, September 19, 2008 4:20 PM
Subject: [Florida Code Talk] Cementitious Finish


> Hello To All,
> A 2 story house built in 2002 after the 2001 FBC became effective.
> First floor walls are poured concrete and second floor walls are frame
> with OSB sub-siding, Tyvek, wire lath with an under coating of what
> appears to be 1 or 2 coats of plaster.  Both 1st and 2nd floor walls
> have what appears to be a stucco finish, that was painted.  The 2nd
> floor walls have no expansion joints and no weep screed.  The homeowners
> have complainted to the builder about water intrusion from wind driven
> rains.  After tropical storm Fay, stalled in our area for several day,
> while dumping several inches of rain, the homeowner removed some
> sections of drywall on the 2nd floor exterior walls.  There is extension
> water damage to the sub-siding and damage to some wall studs.
> During a meeting with the builder and the homeowner, I handed the
> builder a copy of code 2504.2 Exterior Lathing and Plastering, a copy of
> ASTM C 926 and ASTM C 1063, and some pages from the Portland Cement
> Association's "Plaster/Stucco Manuel".  The builder stated he was not
> obligated to the ASTM requirements because he applied a decorative
> cementitious finish in lieu of stucco.  I ask for the name of
> manufacturer, but he refused to provide that information.  He simply
> stated he was not require to install expansion joints and weep screed,
> although he is now on homes he is presently building.
> My questions include, what or who determines if a product is stucco or
> decorative cementitious finish and no matter what the exterior finish
> may be, wouldn't the requirements of expansion joints and weep creed,
> still be required?
> Your assistance will be greatly appreciated.
> Jack Wingo
> Melbourne Beach, FL
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