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We have stucco on the exterior of the house. It is a sand/float finish, I believe, and it looks like this. It is a medium to coarse version of this finish.

How do I go about making this smooth by doing it myself? Do I have to scrape off the existing stucco or can I actually just put a layer on top of it and fill in the gaps until I have a smooth exterior?

sand/float finish

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  • I am not sure so, this is why it is a comment. If it is unpainted EIFS, go over it again with your preferred texture/surface. If it is true stucco you would need to treat it like is is a bare wall, or strip it all off to a bare wall, depending on what thickness you can tolerate.
    – Jack
    Apr 15, 2017 at 19:57
  • It is true stucco on top of plaster walls I believe. The stucco has paint on it.
    – milesmeow
    Apr 15, 2017 at 20:03
  • The paint will mess you up on keeping it simple...
    – Jack
    Apr 15, 2017 at 20:05

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I would pressure wash the entire surface with plain water. Make sure to keep about 18 inches away from the surface and use a wide fan tip. You want to wash it well, but you don't want to peel off any of the material. Allow the surface to dry for 2-3 days.

If the stucco is structurally sound and there is no loose or peeling paint, you can use a bonding agent such as Weld-Crete. Then you can apply new stucco right over the top of your existing finish.

Kirk Giordano is one of the country's greatest plastering companies and he has many videos that detail how to get a variety of finishes.

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