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Posted by =?ISO-8859-1?Q?=22=3C=3C=3C=5F on February 11, 2008, 11:37 pm
I have a double-flue chimney that has a leaky cap. It gets saturated
with water, then drips down into the wall cavity. I don't think it has
yet caused any real rot (hope not anyway) but I need to seal it from the
elements. I tried cleaning it with bleach/Jomax .. let it dry
thoroughly, then gave it 2 coats of RustOleum's epoxy-based concrete
paint. It held for about a year, but it is now coming off in big
flakes & pieces. What type of material is best to seal this porous
surface ?? ?? I thought about the paint they use on mobile home roofs,
but am looking for opinions. How about that rubber membrane they use
in shower-pans ?? ?? Just thinking out loud .. .. .. any
ideas/thoughts would be much appreciated.
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Posted by on February 12, 2008, 12:03 am
> I have a double-flue chimney that has a leaky cap. =A0 It gets saturated
> with water, then drips down into the wall cavity. =A0 I don't think it has=
> yet caused any real rot (hope not anyway) but I need to seal it from the
> elements. =A0 I tried cleaning it with bleach/Jomax .. let it dry
> thoroughly, then gave it 2 coats of RustOleum's epoxy-based concrete
> paint. =A0 It held for about a year, but it is now coming off in big
> flakes & pieces. =A0 What type of material is best to seal this porous
> surface ?? ?? =A0 I thought about the paint they use on mobile home roofs,=
> but am looking for opinions. =A0 How about that rubber membrane they use
> in shower-pans ?? ?? =A0 Just thinking out loud .. .. .. any
> ideas/thoughts would be much appreciated.
I'm a little confused by your question, but I THINK I might
understand..
Some 15 years ago, I moved into a house that had a leakage problem,
basically from the chimney. Went through a lot of "experts" until I
finally found three different guys who all managed to agree on the
solution, sort of, even though they never met each other (at least
that I know).
Basically, told me to get a good chimney cap. I did (stainless steel,
etc.). Told me to build big fires when there was a lot of rain -- I
don't really do this but it was a good idea.
Finally, all told me to use Tamms Chemstop each August before the
rainy season. Ever since I followed their advice, I have had no
problems. Tamms changed their formula a few years ago, and it scared
me, but it still seems to work fine.
Anyway, I have to buy it at a Masonary supply outfit, and it goes for
$25 a gallon, but it only takes about half-a-gallon each August, so,
it's about $12.50 a year....even though the jug says not to keep it
that long, I do and it still works.
Anyway, try some Tamms, only problem you have to apply it when it is
dry and going to be dry for a few days....
Here's a webpage with some information -- use the Heavy Duty for
chimney's:
http://www.weberstone.com/chemstwb.pdf
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Posted by on February 12, 2008, 12:04 am
> I have a double-flue chimney that has a leaky cap. =A0 It gets saturated
> with water, then drips down into the wall cavity. =A0 I don't think it has=
> yet caused any real rot (hope not anyway) but I need to seal it from the
> elements. =A0 I tried cleaning it with bleach/Jomax .. let it dry
> thoroughly, then gave it 2 coats of RustOleum's epoxy-based concrete
> paint. =A0 It held for about a year, but it is now coming off in big
> flakes & pieces. =A0 What type of material is best to seal this porous
> surface ?? ?? =A0 I thought about the paint they use on mobile home roofs,=
> but am looking for opinions. =A0 How about that rubber membrane they use
> in shower-pans ?? ?? =A0 Just thinking out loud .. .. .. any
> ideas/thoughts would be much appreciated.
Reading again, it almost sounds as if you need a new cap....if you do,
just buy one. They arent that expensive. Mine, custom-made and
installed was only $50...of course that was 15 years ago...
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Posted by =?ISO-8859-1?Q?=22=3C=3C=3C=5F on February 12, 2008, 12:26 am
My "cap" is actually just a bed of mortar-like substance that appears to
be troweled-on over the top course of brick. It's not a "cast" cap
like many I've seen before.
timbirr@mailcity.com wrote:
> Reading again, it almost sounds as if you need a new cap....if you do,
> just buy one. They arent that expensive. Mine, custom-made and
> installed was only $50...of course that was 15 years ago...
>
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Posted by =?ISO-8859-1?Q?=22=3C=3C=3C=5F on February 12, 2008, 12:29 am
Actually, I've just thought of another option .. .. how about the thick,
varnish-looking sealer that some folks use on their sidewalks &
driveways ?? ?? It penetrates pretty deep, and probably would need to
be reapplied every other year or so. Again, just thinking out loud ..
.. ..
<<<__ Bøb __>>> wrote:
> My "cap" is actually just a bed of mortar-like substance that appears
> to be troweled-on over the top course of brick. It's not a "cast"
> cap like many I've seen before.
> timbirr@mailcity.com wrote:
>> Reading again, it almost sounds as if you need a new cap....if you do,
>> just buy one. They arent that expensive. Mine, custom-made and
>> installed was only $50...of course that was 15 years ago...
>>
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