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Stucco Over Brick
How to Plaster over bricks, cinder block or concrete foundations
The least expensive way to deal with a less than perfect brick wall is to repair the worst of the damage and then stucco or paint it. If you need to re-point more than 35% of a wall, consider this alternative.
If you decide to stucco over the brick, you need only re-point the worst and deepest of the damaged joints. The two layer of stucco that will cover the wall take care of minor joint faults.
Apply stucco over the brick in two coats. Wet the wall with a hose the night before the first coat is to be applied and again just before the work begins. It is best to apply stucco on a humid, overcast day so that the water does not evaporate too quickly and weaken the bond.
About an hour after putting on the first coat, which should be about 3/8-inch thick, smooth it with a masonry tool called a wooden float. Then spray the stucco with a hose every 12 hours for 48 hours.
After five more days of drying, the stucco is ready for the top coat. This finishing layer, which is about 1/4-inch thick, can be applied in a variety of textures. Some finishers scrape a piece of wood along the surface to give it a rough, scratched look, dab or sweep it with a whisk broom for a swirled or stippled texture, Make it very smooth with a trowel, or splatter it by knocking a whisk broom full of mortar against a stick held close to the wall.