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Exterior Inspections Contains discussions about the exterior portion of a home inspection. This includes roofs, gutters, downspouts, decks, patios, windows, etc.

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  #1  
Old 12/5/07, 11:13 PM
Russell J. Hensel Russell J. Hensel is offline
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Default Stucco over concrete block

The stucco on a concrete block house has cracks that show the area of the underlying concrete block, (Looks like stairs) It is aesthetically displeasing and it is in an upscale neighborhood. It is the only house in the neighborhood with this problem. I was wondering what the typical cause was. The house is located in SW Florida
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Old 12/6/07, 12:16 AM
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relliott relliott is offline
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Default Re: Stucco over concrete block

Need more info and a pic sure would help.
What is the stucco imbedded on?
Not directly on the CMU I would hope?
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Old 12/6/07, 8:48 AM
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Carl A. Brown Carl A. Brown is offline
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Default Re: Stucco over concrete block

Yes!

No moisture barrier and lath to hide the blocks!



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Old 12/6/07, 9:02 AM
Blaine Wiley Blaine Wiley is offline
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Default Re: Stucco over concrete block

Well, it's actually pretty normal here in this neck of the woods because the stucco is always applied directly on the block. The block settles a bit and stairstep cracks show through the stucco. They are on about 10 out of 10 houses I inspect that are over a year old. I have them on my house.

The "normal" cure is to seal them when you paint the house, which with the weather here will be about every five years.



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Old 12/6/07, 9:26 AM
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Barry Adair Barry Adair is offline
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Default Re: Stucco over concrete block

I have a client that is considering having a block wall/fence built. I'll try and get over if this goes through and as work progress' to take some pix.

One step that has been successfully used by the stucco/EIFS contractor I recommend is using the fiberglass mesh as reinforcement. He has 8' walls that are over 10 years old that have no evidence of mortar joint telegraphing. We are on very expansive clay soils around here.

Adds a step in material application, costs a little more, but none of his walls have signs of this problem and he wont do a job without the mesh. I think he's a smart man that has incorporated the best of both worlds.



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