How to Repair Stucco
Directions: Shovel the dry ingredients into a wheelbarrow and blend them with a mortar hoe. Add the acrylic bonding agent, then stir in water, a little at a time, until the mix reaches the consistency of buttercream frosting. Too much water will make it loose and unworkable. Once water is added, the mix will stay usable for 30 to 90 minutes before it starts to harden.
Break Off Loose Stucco
Whack it with a hammer, or a hammer and a cold chisel, taking care not to damage the underlying wood lath supports. Eye protection is a must.
Chip Away At The Edges
Continue until you reach stucco that’s firmly adhered to its lath. Cut any metal mesh with snips.
Cover The Exposed Lath
Using a utility knife, trim a piece of grade-D builder’s paper to fit tightly along the boundary where the old stucco meets the exposed wood lath. Fasten the paper to the lath with roofing nails, then put a second layer of paper on top of the first.
Place galvanized metal lath over the paper and trim it tight against the edge of the stucco. Snips with offset handles will make this job easier. Drive more roofing nails through the mesh and into the wood lath.
How to Repair Stucco Siding
Fixing Large Holes in Stucco
Patching large holes in stucco is a job that homeowners adept at basic home repairs can handle-though it may be difficult to create a patch that blends perfectly with the wall unless you repaint.
Remove loose stucco from the hole with a cold chisel and ballpeen hammer as shown at right; blow out the dust. Staple new wire mesh over any damaged mesh. Spray with water.
Apply the first coat of stucco to within 1/4 inch of the surface, using a mason’s trowel or putty knife (stucco should ooze from behind the mesh). When firm, scratch with a nail. Let cure for two days.
Apply the second coat over the dampened first coat to within 1/8 inch of the surface, using a mason’s trowel or putty knife, as shown below left. Smooth the stucco and let it cure for two days.
Apply the final coat over the dampened second coat with a metal float or mason’s trowel. Smooth flush with the existing surface. Texture as desired, and allow to cure for four days.
Paint if necessary. See How to Paint Stucco.
HomeTips Pro Tip: For deep holes, build up the patch with several successive layers, allowing each to dry before applying the next. Match the texture by touching it up with a float or a small brush.
Stucco Repair: A Quick and Easy Way to Make Your Home Look Like New
How to make DIY stucco
Stucco changes color over the years, so your new patch probably won’t match. But you can paint the new layer after installing, or buy coloring pigment to add to your mix to match the existing color. Mix small batches, add some pigment to the mix, then put it on a piece of cardboard, and allow it to dry. You will need to try different amounts of pigment until you match the color, and you will want to do it before you start your repair.
Apply the first coat
Use a mason’s chisel and hammer to chip away any old stucco or loose material. Then use a finishing trowel to paint on the damaged area and repair cracks. This first layer is called the “scratch coat” (you’ll see why next).
When the scratch coat is applied, use the notched trowel to scratch grooves into the mud. This helps future coats adhere better.
Prepare for the brown coat
After the scratch coat sets and dries for at least 24 hours, sponge water onto the area to help the next coat adhere. This next layer is called the “brown coat” regardless of color.
Apply the coat
Make sure you spread this layer of new stucco evenly, then “screed” (leveling with a straight edge) the mix to ensure the coat is flat and level (no texture).
HOW TO REPAIR STUCCO
Stucco exteriors have many advantages. Stucco is insulating and can make heating and cooling a home energy efficient. It can reduce outside noise, is fire retardant and can last for decades, if you maintain it. Cracks and holes must be fixed as soon as they are noticed to keep the structural integrity of your stucco intact. Learn how to fix stucco cracks and holes with these tips and techniques and ensure your stucco is a lasting part of your home’s curb appeal.
HOW TO REPAIR STUCCO CRACKS
Small, thin cracks in your stucco can be easily fixed with exterior latex paintable caulk. Choose a caulk color that is close to your stucco color. You may not find an exact match, but something close to it. If need be, you can touch up the caulked area with an exterior paint that matches your stucco color. Use a utility knife to cut the nozzle at a 45-degree angle, and place it in a caulking gun. Puncture the internal foil patch at the base of the nozzle with a nail or other slender sharp object. Hold the caulking gun at a 45-degree angle parallel to the crack being filled and pull the nozzle along the crack. Don’t push it. Position the nozzle opening so that it forces sealant onto the crack. As you finish applying each bead of caulk, release the trigger and pull back on the caulking gun rod to stop the flow of caulk and relieve the pressure inside the tube. Releasing the trigger alone will not stop the caulk from flowing out of the nozzle. Let the caulk set for the manufacturer-recommended amount of time.
For cracks larger than a ¼” or so, fill the crack with premixed stucco patch and a small putty knife. Allow the stucco patch to set for the a mount of time recommended by the manufacturer. You may need to apply a few layers of the stucco patch to adequately fill the crack and make the patch flush with the surrounding stucco surface. Follow all instructions.
REPAIRING THE STUCCO ON THE OUTSIDE OF THE HOUSE
It’s about time I share more about our landscaping project that I’ve been teasing about for awhile. I last left off sharing how I saved thousands of dollars and saved foliage from the landfill when trying to clear out our front yard to make way for new plantings.
Once we removed the existing plantings and admired our dirt pile, it became obvious that there was some stucco repair to be done. I’m here to share what I did, how I did it, and give you some satisfying before and afters to enjoy.
Now, I realize this isn’t a DIY project that most people need to do. But I want to share this post to keep you updated on the work that went into the restoration of my home and demonstrate the power of a determined DIYing woman (me). If you have the privilege of time, energy, physical ability, and money, you can do nearly any home improvement project – even the unglamorous ones. Plus, I took a bunch of photos, so I need to publish them on the internet – If I don’t prove I did it, did the project didn’t even happen??
Scrape away loose materials
I shared this above, but I must repeat again that removing loose pieces and dust is super duper important. New material won’t stick to the flaky dusty stuff.
Side note. There’s something that I really like about revealing the brick underneath the stucco. It’s such a beautiful reminder of the work that went into building my house over 100 years ago. I find it kinda neat to touch the piece of brick that someone else touched but hasn’t been seen for 100 years. Ya know what I mean?