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Stucco Repair: What You Need to Know Before Starting

Stucco application is a craft, so your best chance of having and inconspicuous stucco repair is to have a craftsperson do it. But if locating the original contractor isn't possible--or you're a determined DIYer--these tips may help you out.

Stucco Repair for the DIYer

Tips on fixing a crack in your stucco:

  • Small surface cracks in your stucco are best handled with a silicone caulk in a color that matches your stucco.
  • Wider cracks should be filled with stucco mix, which is usually available from an exterior siding product distributor.
  • If your stucco has been painted, you can get by with a natural-colored stucco mix. However, if your stucco has the color in the top coat, you may need to have a small chip color matched.
  • Fill the crack on a cool day so the mixture doesn't dry too quickly. Note tha you may have to do a second coat to make the stucco repair even at the edges.

Seven steps to repair a hole in your stucco:

  1. Trim the edges of the hole of any frayed materials.
  2. If the hole is all the way to the home's sheathing, slide a piece of roofing felt in and overlap the existing felt by at least an inch around the edges.
  3. Nail chicken wire or a similar material to the sheathing using galvanized nails.
  4. Your stucco should be two or three layers; if the coloring is in the top coat, you probably have three.
  5. Apply your stucco mix and try to make the first and second coats about the same thickness as your existing layers; leave the second coat very rough so the top coat adheres.
  6. Let each coat dry completely before applying the next.
  7. Apply your top coat of stucco.

A stucco repair should always be done when there is no chance of rain and temperatures are moderate. And remember: The stucco repair of a hole is more complicated than the stucco repait of a crack. If at any point you feel you're making a mess, don't hesitate to contact a professional.