red stains on basement walls


  #1  
Old 11-21-05, 07:16 AM
nin szot
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Question red stains on basement walls

I am considering buying a house which has a stone foundation (125 yrs old). there are some red stains coming through the sleury. What might be causing these stains? I know there was flooding in the area anout 50 years ago howver I think that the sleury was applied more recently.
 
  #2  
Old 11-21-05, 06:44 PM
Join Date: Mar 2005
Location: USA
Posts: 5,650
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red stains on basement walls

The could be from some stone or rock containing iron. The iron can oxidize(rust) and the stain could be carried to the surface of the slurry(plaster?).

Not a structural problem but is defintely a cosmetic problem. Often a sealer like Kilz will seal the surface and you could paint over it if it is not too extensive.

Dick
 
 

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