Does tuckpointing thread to efflorescence?
We recently spent $40,000 to have our 14-unit, 3-history brick condo building re-tuckpointed. For Period Of the winter (in Chicago), the efflorescence has gotten wholly bad through the building and is a real eyesore. Is it the burden of the public that did the tuckpointing to clean up it away and, if necessary, re-seal it? Would this be covered below the tuckpointing guarantee?
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4 Comments on Does tuckpointing thread to efflorescence? »
March 6, 2010
By theminnguy
I used to have a specific info sheet on efflorescence, but am not able to locate it right now. I worked for builders for the last 12-15 years so the question came up often. Basically what it boils down to is that it is a natural occurrence in concrete products. Drive around any newish neighborhood and look at the brick and stonework, you will see examples everyw It will go away on its own eventually, or you can try having it brushed or cleaned but this will not be 100% successful. I’ve never known of a way to avoid it. Sorry to be so technical. . . Ha ha! I would talk to the contractor about it, perhaps he will work with you under warranty.
By smartassbastard
The first question you have to settle is
Did the tuck pointing cause the efflorescence?
Efflorescence is soluble salts dissolved in the substance of the building left behind as the moisture evaporated off at the surface.
If this hasn’t occurred before and you have had plenty of seasons and no other building work done and it is all over your building then sounds like he has used something not suitable to the purpose of his task.
Beach sand? wrong lime? White tinter?
I don’t know but looks like you should take it up with him.
He might have done other buildings that have the same problem?
Investigate?
Work to a solution and try not to sling mud.
Keep smiling, it helps.
By Bricky Local 9 PA
its hard to believe that pointing a building would cause efflorescence. . . Efflorescence is moisture moving through the brick and leaving salts on the surface as it evaporates. . .
The salts could be coming out of the new mortar. . .
Are you sure it didnt rain on a freshly pointed area of the wall. . .
And what you are seeing is mortar stain. . . .
March 7, 2010
By Bill
Wait till summer to judge the tuckpointing. What happens is during the restoration the mortar joints are opened up, that is to ground away some what with a grinder, this leaves the mortar temporally exposed to the weather rain penetrates the substrate evaporating very slowly whilst migrating salts to the surface which are snowy white. This will go away in about years, while probably disappearing completely during the summer months. Google New Building Bloom because this sounds like what you have from your description.