Repairing cracks in cement blocks


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Old 02-14-06, 01:53 PM
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Cool Repairing cracks in cement blocks

I have a concrete block wall with stucco and it has cracks along the block lines due to water intrusion. The water intrusion has been corrected but when I repoint the joints thay just crack again. The wall is 30 years old and is fully settled. If I stucco over the fresh cracked joints will the stucco also crack. What can I do? Ken
 
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Old 02-14-06, 04:49 PM
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Repairing cracks in cement blocks

Sounds like you just have a surface coating of stucco and not a true stucco with wire mesh. If this is the case, a new coating will probably get telegraped cracks due to movement and moisture change. A real, reiforced stucco should not crack.

Dick
 
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Old 02-15-06, 07:58 AM
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Cool cracks in stucco

The wall is concrete block with a skim coat of stucco and a finish coat of stucco. Is there any way to keep cracks from cominf through? Ken
 
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Old 02-15-06, 01:06 PM
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I would consider undercutting the cracks, and repairing them with mortar caulk, striking a smooth surface. The parget will them have a smooth, repaired surface for application. Nevertheless, the cracks may telegraph through the finish later on with continued movement.
 
 

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