Things You'll Need:
- Safety Glasses
- Masonry Mix
- Hawk (for the masonry)
- Trowel
- Tuck-pointing Tool
- Grout brush
- Hammer
- Brick chisel
- Shop vac
- Wire brush
- Hose or spray bottle
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Step 1
Dig out the loose masonry with the grout rake. The chisel and hammer are for the harder spots.
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Step 2
Turn the rake over and make the joints larger with the flattened side. Vacuum up the dust so that it will not interfere with your repair and cause a crack in the same spot later.
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Step 3
Use a wire brush on the joints to remove even more dust and vacuum again.
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Step 4
Spray down the chimney with water to wet the joints. If the old masonry is wet, it will adhere to the new coat better.
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Step 5
Mix masonry and fortifier according to directions. The mix is ready when it is thick, but you are still able to work it.
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Step 6
Add masonry on your hawk and lay it close to the chimney as you use the tuck-pointing tool to pack the joints with the masonry.
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Step 7
Scrap off the excess masonry after it has had a half hour to set. This is to make sure the joints are flush with the bricks.
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Step 8
Spray the masonry down again with water. Otherwise it might dry too quickly and crack.
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Step 9
Brush the chimney with a stiff broom a few days after it has dried to remove the excess sand and dust.












Comments
SKIDWILLIE said
on 10/30/2008 How do you mend a hole in a chimney flue tile ?
We were knocking a hole in the wall to run a Coax Cable
thru the wall and accidently put a hole in our clay flue pipe. Can this be patched in any way. THANKS FOR ANY IDEAS THAT YOU HAVE.