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Stucco wall has several major cracks in a particular area,
requiring the area of the wall to be repaired.
Tools / Materials (See Below for
Hammer (preferably a mason's hammer)
Chisel (preferably a mason's chisel)
Appropriate dry pigments
Metal weep screed
Pliers (for cutting the wire lath)
Scissors/cutters of commercial kind (for
cutting the lathing paper)
Lumber (long enough to be used to screed the
stucco coat, like a 2x4 if it must be)
Wood float (a wood block with a handle)
Stiff bristle brush
A part of stucco wall that is suffering from
various cracks will require a bit more work than what would be the
case with just a relatively minor crack in your stucco wall.
Caution: Of course, when dealing with sharp
objects, such as sharp lathing wire, make sure you take precautions.
Repairing a part of a stucco wall suffering from
various cracks can be done in a few steps,
and here's how:
hammer and chisel, chisel out and remove all the loose stucco in
the area of the stucco wall in need of redoing.
If the base of
the stucco wall--once the loose stucco is removed--is revealed
to be lathing paper covered with metal weep screed and any part
seems to be damaged, replace it with the lathing paper and metal
weep screed you have on hand. For any applicable
replacement, use a pair of pliers to cut the screed to size and
a pair of cutters/scissors to cut the lathing paper to size; use
the appropriate staples and staple gun to secure the screed and
lathing paper to the underlying plywood of your house.
Using a vacuum,
vacuum up all of the debris created as a result of the
hammering, chiseling, and repairing thus far. (Use an extension
cord in the event the plug of the vacuum does not reach the
nearest electrical outlet.)
Now, use your
wheelbarrow to unload the premixed stucco, and follow the
instructions of the manufacturer of it in order to add the
appropriate amount of water, etc., to make this premix into a
ready batch of stucco for application on the wall in need of
repair. (Be sure you drive the wheelbarrow very close to the
wall to be in easy reach of the stucco batch for application
Now, dampen the
just cleaned area of the wall to be repaired with water in
preparation to apply the "scratch coat" of the stucco, which is
the first of the three standard coats of stucco applied (#1
scratch coat, #2 brown coat, and #3 finish coat).
Apply the scratch
coat of the stucco, using your stucco trowel to do the applying
of the stucco. In this process, with the trowel, you'll
want to first cause the area to be covered with the scratch
coat, pressing the stucco into the screed lathing, and then
finish topping this first coat with the trowel to be within
about a half an inch of the surface of the existing surrounding
After about 45 minutes of waiting, use your scarifier to "scratch"
the surface of this first coat. When done using the scarifier, this
first "scratch" coat should have the appearance of neatly made
horizontal lines/scratches made from one side of the affected area
to the other.
scratch coat to cure for at least 24 hours. In the course
of the 24 hours, you should gently spray water over this scratch
coat every 5 or so hours.
Next, apply the
"brown coat" of the stucco, using your stucco trowel to do the
applying of the stucco. In this process of applying the
second coat of stucco, at the same time, you'll use a piece of
lumber (like a 2x4) to screed this second coat, which means
working this lumber piece up and down the stucco-covered area so
as to level the application of such stucco to be nice and even.
Smooth the surface of this second coat with a wood float.
Allow this brown
coat to cure for at least 48 hours. In the course of the
48 hours, you should gently spray water over this brown coat
every 6 or so hours.
Now, you are at
the stage of applying the third and final coat, the "final
coat." This final coat should have a unique 5:7 ratio
mixture that you should make in a clean wheelbarrow: 5 parts
masonry cement to 7 parts sand, and an ample amount of water to
make the stucco have a soft, fine-pasty-like appearance.
this time, you'll also want to add the appropriate dry pigments to
the mix in order to attempt to match the color scheme of the
existing stucco. (You should have previously tested to make sure the
dry pigments you have are the best match for your existing stucco
With the final
coat batch ready to be applied, dampen the area of the wall that
will receive the final coat, and then brush this final coat
actually onto the area of the wall, making sure that ultimately
a final coat of about 2/16 of an inch is actually applied or
something equally enough to be consistent with the existing
final stucco surface.
Finally, use some
leftover stucco mix to sprinkle onto the final coat for
texturing purposes, using a stiff brush to spread such sprinkles
as necessary. Use the trowel to comb over any
imperfections that stick out in an effort to match the texture
of the existing stucco. Allow for this final coat to cure.
That's what it takes to repair a stucco wall that
has various cracks in a particular area.
Handyman Zone Team
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