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#1
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White powdery substance on basement walls - a problem?
Is this normal or is it a sign that I need to do something. I bought
the house last year and the house inspector didn't mention it as a problem but now I read online ads from waterproofing companies that it's a sign that moisture is seeping through my foundation. I'm going to have a contractor come in to look at it this weekend but I understand that there are a lot of scare tactics employed by these folks to get people to overspend on waterproofing so I'd appreciate some education on what's normal and what is a problem. |
#2
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White powdery substance on basement walls - a problem?
http://www.cement.org/tech/faq_efflorescence.asp
"Joe" wrote in message ... Is this normal or is it a sign that I need to do something. I bought the house last year and the house inspector didn't mention it as a problem but now I read online ads from waterproofing companies that it's a sign that moisture is seeping through my foundation. I'm going to have a contractor come in to look at it this weekend but I understand that there are a lot of scare tactics employed by these folks to get people to overspend on waterproofing so I'd appreciate some education on what's normal and what is a problem. |
#3
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White powdery substance on basement walls - a problem?
It's one of the ingredients in concrete-- calcium carbonate or
something like that. If your walls aren't wet I don't see it as a problem. I find this powdery substance on my walls and floor too sometimes but my basement isn't too damp. Shaun Eli www.BrainChampagne.com Brain Champagne: Clever Comedy for Smart Minds (sm) |
#4
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White powdery substance on basement walls - a problem?
"Joe" wrote in message
... Is this normal or is it a sign that I need to do something? . . . I read online ads from waterproofing companies that it's a sign that moisture is seeping through my foundation. I'm going to have a contractor come in to look at it this weekend but I understand that there are a lot of scare tactics employed by these Before the contractor arrives, test for damp. This is done by taping 8x11-inch sheets of plastic to various spots on the wall, and seeing how many days it takes before drops of moisture appear between plastic and wall. Dry efflorescence from masonry is hardly ever structurally important -- usually just a nuisance (an extra source of dust.) If you do not like to see it, think about having the basement drywalled. Your contractor can estimate costs. -- Don Phillipson Carlsbad Springs (Ottawa, Canada) |
#5
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White powdery substance on basement walls - a problem?
"Joe" wrote to have a contractor come in to look at it this weekend but I understand that there are a lot of scare tactics employed by these folks to get people to overspend on waterproofing so I'd appreciate some education on what's normal and what is a problem. Yes, wise to check. Tape some plastic over the affected spots and see if it gets really wet. If so, you have some seepage. This is normal so dont panic unless it's right on a wood support member. Chances are, the most you need is some basement grade water sealing paint product. If the one fellow tells you that you have a major problem, get *multiple* estimates because uness you have alot of crumbling mortor (would be obvious to the eye that it's falling out), you probably just have a little damp. |
#6
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White powdery substance on basement walls - a problem?
Make sure water drains well around the outside of your house. Wait for a
dry spell, then wire brush basement walls and apply a sealing plaster, I used a wallpaper paste brush. This will reduce basement moisture and is something you should do before ever finishing a basement. "Joe" wrote in message ... Is this normal or is it a sign that I need to do something. I bought the house last year and the house inspector didn't mention it as a problem but now I read online ads from waterproofing companies that it's a sign that moisture is seeping through my foundation. I'm going to have a contractor come in to look at it this weekend but I understand that there are a lot of scare tactics employed by these folks to get people to overspend on waterproofing so I'd appreciate some education on what's normal and what is a problem. |
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