What Kind of Paint Should Be Used on a Stucco House?

The best paint for a stucco house is a high-quality 100% acrylic latex exterior paint, or an elastomeric coating if your walls have hairline cracks. Both options breathe and flex with the masonry, which is exactly what stucco needs.

Stucco is a porous, cement-based surface that expands, contracts, and lets moisture pass through. The paint you choose has to work with those qualities rather than fight them. Pick the wrong product and you'll see peeling, blistering, and trapped moisture within a season or two. Pick the right one and you'll get a finish that lasts for years.

Why acrylic latex is the standard choice

For most stucco homes in good condition, a premium 100% acrylic latex exterior paint is the right call. Here's why it performs so well:

• It breathes. Acrylic allows water vapor to escape from inside the wall, so moisture doesn't get trapped behind the film and cause peeling.
• It flexes. Stucco moves with temperature swings, and acrylic stretches with it instead of cracking.
• It bonds well. Acrylic adheres tightly to the rough, alkaline surface of properly cured stucco.
• It resists fading. Quality acrylics hold their color under UV exposure far longer than budget paints.

Avoid oil-based and alkyd paints on stucco. They form a rigid, non-breathable film that traps moisture and almost always leads to cracking and peeling on masonry.

When to use elastomeric coatings

Elastomeric paint is a much thicker, rubber-like coating designed to bridge and seal hairline cracks. Consider it when:

• Your stucco has fine surface cracks (not structural cracks).
• The home is exposed to driving rain or wind-blown moisture.
• You want maximum waterproofing protection.

Elastomeric goes on heavy and fills small imperfections, but it isn't a cure-all. It should not be applied over walls with serious moisture problems, because it can trap water if the wall can't dry out. For sound, crack-free stucco, standard acrylic is usually all you need and lets the wall breathe more freely.

Prep work that makes the paint last

Even the best paint fails on a poorly prepared surface. Good stucco prep includes:

1. Clean the surface. Remove dirt, chalk, and mildew with a pressure wash or scrub, then let it dry completely.
2. Repair cracks. Fill hairline cracks with an acrylic patching compound and larger cracks with the appropriate stucco repair material.
3. Address moisture and efflorescence. Scrub away any white, powdery efflorescence and fix the source of the moisture before painting.
4. Prime when needed. Bare, repaired, or chalky stucco benefits from a masonry-grade primer or a quality acrylic block filler that seals the porous surface and improves adhesion.

Choosing the right finish and color

For stucco, a flat or low-sheen (satin) finish is usually best. Flat finishes hide the surface texture and minor imperfections, while a low sheen offers slightly easier cleaning. High-gloss finishes highlight every bump and are rarely a good fit for textured masonry.

When it comes to color, lighter shades reflect heat and tend to show fading less dramatically over time. Whatever you choose, buy enough paint from the same batch to keep the color consistent across all four walls.

When to call a professional

Painting stucco well takes the right materials, proper crack repair, and an eye for moisture problems that can ruin a finish. If your home has widespread cracking, signs of trapped moisture, or hard-to-reach upper walls, it's worth bringing in experienced painters. Nash Painting serves homeowners in Nashville, Brentwood, and Spring Hill. If your stucco is cracking, send close-up photos in our chat, and we'll email you an estimate for a finish that protects your home for the long haul.

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