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Don’t Worry Too Much About Hairline Cracks in Stucco

Feb 09, 2015

Do you have stucco siding in Kansas City? If so, you’ll want to take a couple laps around the house every once in a while to inspect the stucco to make sure that it’s in good shape. Every once in a while, you may spot a crack in your stucco. Fortunately, most cracks are only cosmetic issues. These types of cracks are known as hairline cracks.

stucco siding Kansas City
Source: Flickr

Stucco is made out of a Portland cement product, which means that no matter how well it was installed, it is still susceptible to small hairline cracks. There are a number of ways that you can prevent these hairline cracks from occurring, however. The following are a few standards to prevent hairline cracks in your stucco siding:

  • Your wood-based sheathing needs to be gapped at a minimum of 1/8 inch on all sides and edges.
  • The moisture content of your wood framing members needs to be less than 19.
  • Attach metal lath or woven wire along your framing supports.
  • Make sure the control and expansion joints are installed according to industry recommendations.
  • Only use clean washed plaster sand.
  • Don’t use cement rich mixes
  • Never soak your walls – only damp cure them in hot and dry weather.
  • During cure time, avoid drilling, pounding and other vibrations to the plaster membrane.
  • Let the base coat cure for a minimum of 14 days prior to finish.

You can cover hairline cracks that develop during the cure period using an acrylic finish material or a cement product.  They aren’t something to worry about.

GET A SENSIBLE PAYMENT PLAN THAT FITS YOUR BUDGET

If you know you want to get your home exterior project done, but are feeling stress about paying for it all at once, we can help.

Our financing partner, GreenSky, has sensible payment plans that work for homeowners who prefer to pay in installments. You can also ask your JoCo Siding & Window Co. sales representative about the details!

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