Quote:
Originally Posted by Porsche-O-Phile
Yes, pics would be helpful. I'll assume you're talking about some sort of stucco adhered to CMU (Concrete Masonry Unit) substrate... Incidentally they're called CMUs, not "cinderblocks" or "cement blocks" - cement is a constituent ingredient of concrete. "Concrete blocks" is acceptable too and won't make you the butt of jokes. If a contractor ever heard you say "cinderblocks" they'd probably peg you as naive/ignorant of construction and their price would reflect it... A word to the wise should be sufficient.
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Now that all that's straight.....
It's probably stucco over block and the freeze/thaw cycle has popped it off.
Rooster, I would suggest that you can patch this. If it's more than 3/8ths thick, put a base coat in the patch and float it off level or slightly below level with the surrounding surface. Use a sponge type float. Base coat is almost the same as mortar if you want to buy it premixed.
Stucco patch comes in a couple of varieties. The white stuff will spread thin and blend real well. The gray stuff will build higher and can be worked in for a nice blend if you have a little experience.
Tools needed: bucket, small mason's trowel, soft float trowel and maybe a sheet of thin plywood if this is real low to the ground. Throw the mix down on the plywood snugged up below the repair area and lift/spread into the patch.
Wear cotton gloves if you have tender hands. The cement and lime will burn your skin.