Stucco starts with the lath. Lathing begins with a metal weep screed that is installed around the bottom of the structure. The weep screed allows any water trapped by the paper to “ weep” out the bottom. .Next, the exterior walls are wrapped with a weather resistant black paper similar to roofing paper. CCP uses a “double” 60 minute paper I.E. two layers. The purpose of the black paper is to create a back-up weather resistant membrane just in case any water gets past the stucco. If any water does get past the stucco, the water will run down the face of the black paper and exit through the metal weep screed. Next, a metal square wire is installed over the black paper.
Cen Cal Plastering uses 17ga welded square wire for our 3 coat system. This wire provides many benefits over the old 17ga woven wire. Some of the benefits are that it mobilizes all wires to provide a reinforcing truss. Its welded joints provide structural integrity and superior stiffness. Wires are aligned with the stress direction. The full tensile strength of wires can be used. Square openings are smaller, providing greater crack bridging capability. It provides a confinement effect that limits occurrence and propagation of cracks. It has an outstanding furring pattern that allows excellent keying in the stucco and thus better reinforcement. These features combined allow the 17ga welded wire to achieve higher shear values.
After the lath has been completed the stucco is applied in three layers referred to as scratch, brown and texture coats.
Each coat is allowed to cure before the next coat is applied. This allows the stucco to harden properly before being covered by the next application.
Portland cement-based, stucco finish manufactured from the highest-grade Portland cement, hydrated lime, graded aggregates, and specific additives. Portland cement base comes in various aggregate combinations that allow design flexibility and a variety of finish textures. The following aggregate combinations are available, in order of aggregate size:
Coarse: Used to create heavy laced, sand, or machine dash finishes.
16/20: Used to create traditional, sand, or machine dash finishes.
20/30: Used to create a fine texture or sand finishes.
30/30: Used to create a uniform fine sand finishes.
Color is commonly added to the texture coat although some Customers prefer to paint the texture coat. One advantage of stucco is that there is a never ending variety of textures that can be used to finish the plaster ranging from a smooth “egg shell” type texture all the way to a heavy lace texture.
100% acrylic-based finishes using the latest Dirt Pick-up Resistance (DPR) technology. They provide a flexible, durable, integrally colored finish, which will enhance the appearance of any plastered structure. Acrylic-based Finishes may be sprayed or troweled to achieve a variety of texture options and are available in the following finishes: Coarse (~1.5mm): Heavy sand-like finish. Medium (~0.8mm): Medium sand-like finish. Fine (~0.3mm): Imperfect smooth type finish.
Custom acrylic sealer designed to create a rustic, mottled finish similar to the timeless beauty of century old plaster. Acrylic sealers also act as a water-resistant sealer and can be applied over Acrylic fine aggregate finishes. Custom acrylic sealer offers an “Old World” look that does not take a lifetime to create. |