My house is just over 2 years old. I have noticed on the cinder blocks in the
inside of the garage that there is a white power on a few of them. Also, on the
front of the house there are some rough-faced concrete blocks that make up the
front stoop that also have white powder on them. I have heard this is a
moisture related issue, but my house is not in a low area and there are no
drainage problems. What's going on?
It is indeed due to moisture, but it may not be fatal.
Search the last few weeks of this newsgroup for the word efflorescence. That
is what you have, and it has been fairly well wrung out as a topic in these
groups. Also look it up in google groups, and google web search. Also a good
discussion in www.bia.org a brick industry group.
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