Chimney Waterproofing


  #1  
Old 10-31-11, 10:11 AM
J
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Chimney Waterproofing

Chimney Waterproofing
I am having a chimney company waterproof my chimney and mortar crown. The crown was replaced with new mortar. They say they use a water base product.
1. Does the chimney need to be completely dry before applying the product?
2. What is the lowest temperature that you can apply the coating?
3. How long should you allow it to dry before a rain?
4. How long does the coating last before another is required?
5. Finally, is waterproofing really required both on the chimney and the new mortar crown? My house is about 40 years old and uses old brick which shows no sign of wear both on the chimney and the house.

Thanks,
Jerry
 
  #2  
Old 10-31-11, 04:22 PM
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Exactly, what is the product that they want to use? I don't recommend sealer of any type. The brick has to breathe.
 
  #3  
Old 10-31-11, 04:47 PM
J
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Sorry, I donít have the product name. However, if you feel it is important, I could inquire. Since it is water based, I would assume most products with that base would be similar. Anyway, from my inquiries it appears most chimney maintenance and repair people usually recommend waterproofing. So, I am wondering if it is scheme to profit on an unneeded service.
Thanks,
Jerry
 
  #4  
Old 10-31-11, 09:31 PM
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I would say that it isn't needed. In fact, I think it could cause problems. If you don't have any problems now, leave it alone.
 
 

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