Problems with stucco
by
Theresa
do to when our house will built. the contractor used a jack leg stuccos guy to apply stucco on our home. need less to say the stucco is pulling away from the walls and cracking. my husband and I want to shear off the stucco and paint the walls with water proof cement paint. the home is made of solid 1/2 foot thick walls, poured cement walls. what would be the best way to take the stucco off. we cannot afford anyone else to do the work.
1 answer
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You have a concrete wall. And it was painted with a stucco surface? What was the texture type? Spanish heavy, or something more like a smooth sand finish? How as it applied? How soon was it done after the walls were poured? Do you have photos of the good and bad areas? What stucco finishes are is a Type II cement mixed with an acrylic modifier material. This Acrylic material is designed to make the surface material pliable so it withstands cracking. It is really rare that a cement finish over a cement wall fails. As the two materials having basically the same components that make the materials will swell and shrink evenly with different temps. If he simply used a Portland cement and troweled it over the cement wall without adding any modifiers, then textured it with an stone material to give it its, look. He may not have used the proper materials to perform this type of project. The smaller the stone, From sand to 1/8" gravel mixed in then smoothed out with trowel will provide a sand finish look to a heavy Spanish texture using the heavier gravel size. If that is the case, not using the acrylic additives, then all he did was install a cement parging over the surface of the wall. Much like you would see along a foundation wall or around a set of stairs made of cement block. In any case, you have a few options. You will not be able to remove much of the surface coatings. As the cement material has bonded enough to hold it in place now. You could attempt to use a high pressure power washer to remove any loose material left, but I doubt you will have much luck in making it all come off. As far as painting the cement walls, you need to use an elastomeric paint. Do not use water proofing paint. Although the walls are solid cement, they do transfer moisture as it easily moves though the cement. Any moisture that is trapped behind the finished paint will blister and fall off. And perhaps that may be the issue your currently having. The elastomeric paint provides a few good options. It will prevent any water that is coming from the outside to enter into the cement, It will also allow moisture vapor to move freely from the internal wall surface to the outside preventing blisters in the paint in a few short months. Still another it will move and shrink pretty easy, thus preventing cracks on the new finish. You could recoat the wall yourself. Its not really as difficult as you would think. Its really much like a heavy paint much like the deck restore products others have been chatting about. You use a large flat trowel and smooth it on. Depending on the final texture you decide this when you purchase the stucco finish material. Its a bit heavy work, but if you take your time and do a small amount at a time it should not take all that long to fix.
Woodbridge Environmental Tiptophouse.com
on Aug 10, 2014
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