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Chimney Waterproofing

Posted by Buck M. on July 10th, 1998 08:25 PM
In reply to Brick Chimney sealant (waterproofer) by Jeff on June 8th, 1998 01:25 PM [Go to top of thread]

24 of 26 people found this post helpful

Dear Jeff,

I am a registered August-West Chimney sweep in
Cheyenne, WY. Chimneys out here take a real beating
due to the extreme temperature changes, and high
winds. But, the real culprit is moisture!
Masonry chimneys, because they extend well above
the roof line, bear the brunt of the elements.
Waterproofing your chimney is a very good idea.
It protects the mortar joints from moisture entry,
and makes a chimney repair last a lot longer.

A product is available called "Chimney Saver" and
is only available through a registered chimney
sweep. It is available in both solvent or water
base. It comes with a 10-year warranty, as opposed
to Thompson's Water Seal that has to be replaced
on an annual basis. Chimney Saver will not alter the
surface appearance, and here's the good news - it does
not allow water to penetrate, but allows the chimney
to breathe, thus allowing humidity to escape. Other
waterproofers cannot do this. Your chimney repair
person is absolutely correct, the masonry must be
able to breathe because of the moisture that is
created in the combustion process. Chimney Saver
is also great for preserving your entire house, if
it is a masonry structure.

If you cannot find this product in your locality,
please contact:

Above All Chimney & Fireplace Services
c/o Rich or Buck
3529 Boston Road
Cheyenne, WY 82001
(307) 634-8722 or simply reply back to me.

Take care and sweeps luck to ya,


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