Don’t know the best remedy to your stucco exterior dilapidation? Well, get a stucco remediation service fast to avoid further deterioration. The best remedy to an aging or shaky stucco exterior is cement stucco or cement plastering. Check out how a reliable stucco remediation company does it.
What is stucco?
Stucco refers to a mixture of fine sand, cement, lime, and
water to form a paste that is applied over a surface using a trowel or machine-sprayed.
The end product is a hard and aerated surface designed to allow moisture to escape
through small pores to minimize the chances of decay or rot.
What is stucco remediation?
This process entails getting rid of your old and damaged
stucco system and replacing it with a new one. The damage is usually a result
of moisture penetrating the space separating the outer stucco layer and the
inside framework of the walls.
What is the cement stucco installation process?
Stucco can spread over any masonry-based wall like concrete,
cinder block, and brick. The application is done in thin layers. It can also be
applied to wood-sheathed walls through the usual frame construction with the
addition of a metal lath on top of the wood. The finish is then done in a rough
texture.
The typical stucco application on a house takes the
following steps.
1.
Scaffolding
We first erect scaffolding around the building in line with OSHA
requirements to create a safe workspace. This will help us in the removal
of the dilapidated stucco system, repairing the damage, and application of the
new system. The scaffold will hold for the entire project’s timeline and be
disassembled afterward.
2.
Weather resistive barrier
The next step involves setting up a WrapShield weather-resistant
barrier (WRB) over the entire wall surface. This WRB has an integrated tape to
secure it in place while protecting the wall materials beneath it from moisture
damage.
3.
Rainscreen drainage
We then apply the WaterWay 3mm Rainscreen Drainage Mat on
top of the WRB. The drainage mat acts as a sponge-like layer separating the
stucco and the WRB and keeping the wall’s interior dry. It does this by
facilitating water drainage and perfect air circulation through the sponge
cavities.
4.
Expanded wire lath
To get the stucco cement to adhere to the surface and
provide it with extra rigidity, it is held in place 7” or 8” from the
rainscreen with an expanded wire lath 2.5mm thick. This acts as the final layer
underneath the stucco cement.
5.
Scratch & brown coat
Next, is the application of stucco premix to act as a basecoat
in readiness for the finish coat application. The scratch coat comprises a
mixture of cement, sand, and supporting fibers. It is applied on the wire lath
and its surface horizontally scratched to pave the way for the next layer to
attach to it better. The brown coat is then applied and comprises the same
mixture as the scratch coat except it is applied without scratching.
6.
Polymer-acrylic base coat
Application of a polymer-acrylic base coat over the entire
stucco is what follows. This coat helps protect the finish coat from damage
through scraping. It also enhances the waterproofing of the finish to prevent
moisture penetration.
7.
Stucco finish
The stucco finish involves the creation of watertight seals
between stucco and frames, windows, and doors. We do this once the cement
stucco application is complete by caulking the seams to seal off any potential
water penetration points.
8.
Expansion joints
½” expansion joints with backer-rod and polyurethane sealant
are applied around each opening to prevent moisture damage and stucco cracking
due to temperature variation.
9.
Flashing
Metal drip flashing with turn up ½” edges are installed above
each opening to channel water away from walls.
The end product is a durable structure with far better
aesthetics. Contact us today if you want to experience the beauty of cement
stucco.
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