16 August 2023
 Categories: Construction & Contractors, Blog

Stucco, with its versatile textures and classic appeal, has been a favored exterior finish for homes and buildings for generations. Yet, like all building materials, it's not immune to wear and tear. The good news is that stucco repair can effectively address these issues. Here's a look at various methods employed to revitalize stucco surfaces.

Assessment and Cleaning

Before any repair can commence, it's vital to evaluate the nature and extent of the damage. Minor cracks might merely be cosmetic, while larger fissures and bulges might hint at underlying structural issues like water damage.

Once you've pinpointed the areas in need of attention, the next step is cleaning. A solution of water and mild detergent can be used to scrub away dirt, mold, and any efflorescence (that powdery white substance that occasionally surfaces on stucco).

Cleaning not only preps the surface for repair but also ensures the new material adheres properly.

Patch Repair for Small Damages

For those superficial blemishes like tiny cracks or chips, you start by widening the crack slightly with a chisel or utility knife. This slight undercutting ensures the repair material stays put. Afterward, applying a bonding agent will further guarantee that the new stucco bonds with the original surface. 

With the prep work done, the crack or chip can then be filled with a stucco patching compound using a trowel. It's important to smooth out the patch so it aligns seamlessly with the surrounding texture. The final step is a patient one — allowing the patch to properly cure, which often takes about a week.

Full Re-Stuccoing for More Extensive Damages

For more daunting damages, a more comprehensive approach might be necessary. Begin by removing the compromised stucco using tools like a chisel or hammer, being careful not to harm the underlying lath or mesh. If the lath or mesh itself is damaged, replace it before proceeding. 

Once the groundwork is laid, it's time to mix and apply fresh stucco. This is usually done in three layers: first, a scratch coat is pressed into the lath and then scored horizontally. After a day, a brown coat is applied and smoothed out. Once this sets, a final finish coat is applied. This last layer offers an opportunity to mimic the original texture, ensuring a cohesive appearance.

Sealing and Painting

After the stucco repair dries and cures, it's a wise move to seal it. Sealing not only enhances the longevity of the stucco but also acts as a protective barrier against moisture infiltration. Once sealed, consider painting the stucco to ensure a uniform appearance. 

Acrylic-latex paint is typically recommended for stucco surfaces. Always prime first to ensure even color absorption and a consistent finish.

Contact a stucco repair service near you to learn more.