I would like to add a chimney tile to the top of a chimney. This
would probably involve setting the tile on the bricks with a
little mortar, and tapering up the outside an inch or two from
the outside of the brick chimney. A chimney sweep said to use
cement mix to do this. The tile supplier said to use mortar mix.
It seems to me the mortar makes more sense, but I would be
interested in more opinions.
You are probably getting mixed messages, because, well, it is a mixed
message. I am not sure what you are asking, but if you are asking
about adding to the outdoor crown of the chimney, a cement-like mix
specifically for chimney crowns is usually what is recommended....thus
the cement comment. Mortar is recommended for other parts of the
And, there are a number of different types of mortar. Type S gives
pretty good compressive strength and great bonds and is usually sought
for tall, unsupported chimneys.
Type N is usually used for general chimney work.
Crown mix is a concrete product, with other stuff mixed in (I don't
remember what...), but it primarily just sits on top of the bricks and
protects the "crown" of the chimney.
Anyway, I would recommend that you find a local firm that supplies
concrete blocks and mason supplies for your area....look in the yellow
pages under the concrete headings and drive over in person and present
your question to someone at the counter who knows what they are
talking about. They should know the answer, as well as have the stuff
on hand that you need....you may pay $5-$10 more than at Home Depot,
but you will get the right stuff.
BTW, as long as you are there, might ask about waterproofing your
chimney. It will add years to the life of it....
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