How do I apply stucco over brick? (with photos)

A high pressure washer can be used to clean bricks.

Stucco is an exterior finishing material made from sand, cement and natural lime. This material offers a highly textured and versatile finish option for any type of surface, including brick and other forms of masonry. Builders and homeowners often apply stucco over brick or masonry walls to cover unsightly or damaged surfaces. As brick is very porous, the surface must be carefully primed to ensure successful stucco application.

Loose brick and mortar must be replaced before stucco is applied.

The first step in applying stucco over brick is to add or repair lightning around doors and windows. Any incomplete or damaged flashings around these openings can cause moisture damage after the plaster has been applied. Then the walls must be cleaned to ensure that all dust and contaminants have been removed. This is usually accomplished by high pressure washing or pressure washing. Finally, any major repairs must be completed, including replacing missing brick or mortar or removing loose or crumbling sections.

When applying stucco to brick, it is helpful to wait for the right amount of time to avoid freezing problems as the stucco dries. Apply a bonding agent to concrete using a brush or roller, then allow the bonding agent to cure according to the manufacturer’s instructions. This type of agent helps to seal the brick, allowing the stucco to bond securely.

Wet the entire wall with a garden hose before trying to apply stucco over the brick. Mix the stucco according to the package instructions, then apply the primer to the wall with a trowel. Start with a 1/4 in. anti-scratch coat. (6.35 mm). After this layer has dried for a few hours, run a plaster rake over the stucco to create a lined texture.

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Wait a day or two for the scrape coat to cure, then apply a second coat of approximately the same thickness. Use a spatula to vary the texture and create the look you want. Keep the stucco moist for the first week so it dries slowly and resists cracking. Wait at least four to six weeks before trying to paint fresh plaster.

While it is quite easy to apply stucco over the brick, it is often more challenging if the brick has been painted. Before attempting this type of application, sandblast the paint to reveal the raw surface of the brick. This increases the strength of the bond between the stucco and the wall surface. If sandblasting isn’t an option, add a metal batten to help the stucco adhere better to the brick.

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