Applying Exterior Stucco
Stucco is a type of plastering material that is mostly used on the exterior parts of structures.
Applying exterior stucco. Traditionally stucco was composed of lime sand and water but now portland cement is added. Other additives like glass fibers and acrylic strands strengthen mix and prevent it from cracking and it can be applied with a trowel or sprayed on. The proportions and ingredients are to be appropriately maintained.
Water absorbed in the porous of stucco will evaporate given the proper time. All you need to do is apply the concrete bonding apply the stucco scratch the stucco apply the final coat and cure the material for several days. This article series discusses best practices construction details for building exteriors including water and air barriers building flashing products installation wood siding material choices installation vinyl siding stucco exteriors building trim exterior caulks and sealants exterior building adhesives and choices and application of exterior finishes on buildings.
Interior VS Exterior Paint. Today it is not necessary to mix stucco from raw ingredients. You typically apply a base or scratch coat that is approximately 38-inch thick.
The application of the stucco should begin with a scratch coat a 14 to 12 layer of mortar which is applied directly to the structure and allowed to slightly harden. Trim pieces around doors and windows are cut from foam blocks with fiberglass mesh embedded in the stucco to give added strength. When applying stucco to a concrete or brick wall you must first apply a bonding agent to the wall and leave it to dry completely.
After the mortar has hardened slightly it should be scratched to a depth of 18 and allowed to harden for between 36 and 48 hours periodically misting the surface with water to keep it moist. Depending on the contamination you might only need to wash with water. Adding lime allows the stucco to flexible when applying and also is a sealer against water.
With worse conditions you need more aggressive techniques. Once that has dried apply the stucco directly onto the wall starting first with a scratch coat of around a 14- to 12-inch layer of stucco. The watering of the stucco before painting or using any repellent also has to be maintained.