This last winter took quite a toll on our chimney. Found a nice pile
of brick pieces that had falled off the face of about 10 bricks from
the freeze/thaw abuse. How does one fix such brick faces, or do you
just water proof (Chimnet Saver) and not repair?
In which case the guy can just watch big shards of cement join his pile
of brick shards since cement or new brick doesn't address the underlying
problem causing it in the first place. Besides, standing on a pitched
roof with a big saw isn't exctly the most intelligent thing for a DIYer
without scaffolding or pro masonry skills.
I'd personally prefer to replace the damaged bricks entirely. Hopefully
you have access to a similar style of brick, as an odd match can really
stick out. This is rather tedious by hand, but you have less chance of
damaging neighboring brick than with power tools. It's a pretty
straight-forward but labor-intensive project, and some people aren't much
for roof work. YMMV.
When watersealing, make sure to use a breathable product designed for
masonry (which is sounds like you were already considering). Standard
watersealers can do more harm than good with chimneys.
You don't fix the brick faces, you chisel out the broken bricks and
replace them. However, it's more important to find out what's causing the
spalling and address that, or the new bricks will simply do the same.
What's the history of this chimney?
Remove the dead poet to e-mail, tho CC'd posts are unwelcome.
Ask me about joining the NRA.
Healthy brick doesn't do that even in the worst freeze-thaw conditions
(in fact, it doesn't even need freeze-thaw to happen), and shouldn't
ever need sealers to keep it from happening or getting worse. This
indicates a moisture-related problem, or perhaps one that's occurring
inside the chimney caused by something not right going on with the
boiler or fireplace depending on which of those two is hooked up to that
particular chimney. Problems like that should be inspected and repaired
if necessary by a professional mason and the problem causing it
identified and eliminated by a professional HVAC guy (if it's a boiler
chimney) or whoever deals with fireplace issues if it's a fireplace
Thanks for all the replies. A little history. Its your standard
1970's 2 story chimny. Original. Couple bricks up top near cap have
been poorly fixed with just what looks like cement coating to mimic
the missing shards of brick. All the damage happens in top 10 rows or
so, preumably the most exposed.
Only thing running thru it is the fireplace. Firteplace has been
cleaned an expecyed. Nothing abnormal found on inspection. Suggested
I could use a new weathertight -style cap, thats all.
Have used sealer buts its the same Chimney saver type used by the
pro's from Saver systems - supposed to breath well.
We have always seen a few chips off every year, but this year was kind
So how does one chip out brick anyway - cold chisel and ladder? ;^)
email@example.com (Todd W. Roat) wrote in message
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