Stucco is attractive and durable, but it can become damaged and lose its aesthetic appeal over time. The good news is that DIY homeowners can repair stucco around their home without professional assistance. The following is a step-by-step guide on how to repair stucco yourself, including insights into what tools you will need to remove the old stucco, mix the new stucco, and apply the three necessary layers.
Remove Loose Stucco
The first step is to remove the loose or damaged stucco. This is a fairly easy DIY project, and all you need is a hammer, cold chisel, and protective gear. Begin by carefully chipping away at the loose stucco. Be careful not to damage the wood underneath the loose stucco. Chisel your way around all of the loose or damaged stucco, and stop when you arrive at areas of the stucco that are still in good condition. It is encouraged to wear protective eyewear while you remove the loose stucco.
Add Building Paper and Wire
During the stucco repair process, it is helpful to place builder’s paper over the wood lath before applying the fresh stucco. You can use a grade-D builder’s paper for this. Measure and cut two separate sheets of building paper to the appropriate length. Staple the first layer onto the underlying wood lath, then staple the second layer onto the first layer of building paper. For best results, you can then place galvanized mesh over the building paper with nails.
Mix a Batch of Fresh Stucco
After the loose stucco is removed and the building paper and mesh wire are attached, you can then prepare the fresh batch of stucco. To do so, you will need the following ingredients:
- Masonry sand
- Hydrated lime
- Acrylic bonding agent
- Aggregate sand
You will also need a wheelbarrow and a shovel to mix the fresh stucco. You can then combine the dry ingredients into a wheelbarrow and mix it together with a mortar hoe. Finally, add the acrylic bonding agent and water, although be careful not to add too much water to ensure it is thick enough.
Apply and Smooth First Layer
You will need to apply the mixture within the first several hours before it begins to harden. The stucco will need to be laid in various layers for the best results. The first layer should be as close to the original stucco as possible.
Be sure to wet the mesh wire slightly to ensure a proper hold of the stucco mixture. You can use approximately a handful of the stucco mixture to lay the first layer, although more or less may be needed depending on the size of the repair. Apply the first layer and then ensure it is smooth.
Let Dry and Scratch
The first layer will need time to dry. This allows it to properly harden and serve as a support for the second and third layers. You will also need to scratch the first layer. You can simply use a nail to scratch the stucco. After the first layer is applied and scratched thoroughly, allow at least 48 hours for the stucco to dry before you apply the second coat. You can cover the first coat with a plastic material to ensure it is properly protected from bad weather.
Apply Second Coat and Let Dry
After 48 hours have passed, you can apply the second coat of stucco. For best results, use approximately half an inch of the stucco mixture for the second coat. All you will need to apply for this coat is the stucco mixture and a brick trowel. You can then apply the stucco mixture and smooth it into place over the first coat.
Make sure that the second coat is smooth and properly even in all areas. It should appear fairly thick, but there should still be enough room left for the application of the final coat and paint. You will need to wait another 48 hours before applying the final coat. Place the plastic sheet over the second coat while it dries.
Apply Final Coat and Wait to Paint
After several days, remove the plastic coat and wet the second layer of stucco. You can then make the stucco mixture for the final coat and apply and smooth it over the second layer with a brick trowel. The final coat should be even with the rest of the stucco wall. You will need to wait anywhere from several days to up to a week before you paint the stucco. Be sure to pick a paint color that matches the rest of the wall.
Contact Stucco Repair Experts
You can learn more about how to repair stucco or inquire about our professional stucco repair services by giving our team a call today. We are glad to answer your questions and help you restore the appearance and overall condition of your stucco.