How thick should stucco be applied?
The correct thickness is then 5/8 inch. Two-coat applications are only for use over solid plaster bases without metal lath. For unit masonry, that thickness is ½ inch. For cast-in-place or precast concrete, the thickness for two-coat work is 3/8 inch.
What spec section is stucco?
CSI SECTION 09200 – FIBER REINFORCED STUCCO. The Armourwall 100 Stucco Assembly, when installed over CMU, can be either direct applied or installed with lath as per this specification.
What can stucco be applied to?
It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and artistic material in architecture. Stucco can be applied on construction materials such as metal, expanded metal lath, concrete, cinder block, or clay brick and adobe for decorative and structural purposes.
What is the minimum thickness of stucco?
The minimum thickness of stucco from the face of the base shall be not less than 3/4 inch at every point… Non-corrodible flashing or other expedients that will prevent penetration of moisture behind the stucco shall be used when necessary.
What is the standard thickness of stucco?
Traditional Hard Coat stucco is 7/8 inch thick One of the factors that can affect the strength of Traditional Hard Coat stucco is the thickness. The building code has a minimum requirement for the thickness of Traditional Hard Coat stucco, it is 7/8 of an inch.
What are the layers of stucco?
Three coat is the original stucco process, consisting of paper and wire, a scratch coat, a brown coat, and a finish, or “top” coat.
What is ASTM c926?
ASTM C 926 – Standard Specification for Application of Portland Cement-Based Pl… ASTM. ASTM. January, 2018. Specification covering the standard requirements for application of full thickness Portland cement-based plaster for exterior (stucco) and interior work.
What is C1063 ASTM?
ASTM C1063 : Standard Specification for Installation of Lathing and Furring to Receive Interior and Exterior Portland Cement-Based Plaster.
Do you need plywood under stucco?
Stucco requires a rough surface that it can bond to, like the aforementioned masonry. Plywood products don’t offer this, so lath needs to be applied, providing something for the stucco to bond to. But there are other parts of the preparation to do, before the lath.
How many coats of stucco do you need?
Stucco application typically requires three coats. The initial “scratch coat” provides adhesion to the building. The “brown coat”, which comes second, is responsible for creating an even surface. Finally, the “finish coat” determines the stucco’s outward appearance.
Can stucco be 3 thick?
Without a mesh lath in place, the foundation must be plaster or concrete of some kind. 3 layers are necessary for all but a plaster base. The thickness ranges from 3/8″ to 5/8″.
What are the 3 layers of stucco?
What type of sand is used for stucco?
Washed Plaster Sand can be used for plaster, concrete, stucco and other masonry projects. This Washed Plaster Sand includes a 1/3 yard of material.
How can I make my stucco stick better?
For extreme strength and stickiness, you can mix one part sand to one part Portland cement. You add enough water to make the repair mixture resemble whipped mashed potatoes or warm cake icing.
What is ASTM C150?
The ASTM Standard Specification for Portland Cement (ASTM C150) provides for five types as follows: – Type I—The standard product that has long been in use with no limitation on the proportions of the major oxides (CaO, SiO2, Al2O3, Fe2O3), also referred to as “ordinary portland cement.”
Can I use Portland cement as stucco?
Portland cement plaster provides an ideal finish or cladding for any building construction system including concrete, concrete masonry, brick masonry, wood frame, or steel frame. Portland cement stucco can be applied to any flat or curved surface either inside or outside.