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#1
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Crack in chimney top...
High all
My chimney is a masonry chimney made of good quality white bricks thoughout. At the top is a cement cap, maybe 6 inches think,where its rounded over into the flue rain guards. That cement top is cracked on one side, with a gap of maybe 1-2mm for about 1 foot. I was considering just filling it with either silicone or regular caulking. And tips? Metal strap required? Ignore it? It doesn't look like its about to crumble or anything. Thanks! Dean |
#2
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Crack in chimney top...
"dean" wrote in message
ups.com... High all My chimney is a masonry chimney made of good quality white bricks thoughout. At the top is a cement cap, maybe 6 inches think,where its rounded over into the flue rain guards. That cement top is cracked on one side, with a gap of maybe 1-2mm for about 1 foot. I was considering just filling it with either silicone or regular caulking. And tips? Metal strap required? Ignore it? It doesn't look like its about to crumble or anything. When water gets in and freezes, it will make the crack worse. Just fill the gap with anything that will last such as the silicone caulk and you will be OK. |
#3
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Crack in chimney top...
"Edwin Pawlowski" wrote in message . .. "dean" wrote in message ups.com... High all My chimney is a masonry chimney made of good quality white bricks thoughout. At the top is a cement cap, maybe 6 inches think,where its rounded over into the flue rain guards. That cement top is cracked on one side, with a gap of maybe 1-2mm for about 1 foot. I was considering just filling it with either silicone or regular caulking. And tips? Metal strap required? Ignore it? It doesn't look like its about to crumble or anything. When water gets in and freezes, it will make the crack worse. Just fill the gap with anything that will last such as the silicone caulk and you will be OK. Either that or look in one of the BBS (big box stores) for a small container of cement "patch" (comes in different brands)..... |
#4
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Crack in chimney top...
Yeah ok. Chimney guys told me to use something today that I don't
remember what it was. I said silicone and they frowned at that, but that's probably still what I'll use. Thanks all, Dean (ps that part is called the crown, as I found out today!) |
#5
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Crack in chimney top...
"dean" wrote in news:1130957240.442713.256520
@g44g2000cwa.googlegroups.com: Yeah ok. Chimney guys told me to use something today that I don't remember what it was. I said silicone and they frowned at that, but that's probably still what I'll use. I used grout a few years ago. It's still holding up today. |
#6
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Crack in chimney top...
On 2 Nov 2005 10:47:20 -0800, "dean" wrote:
Yeah ok. Chimney guys told me to use something today that I don't remember what it was. I said silicone and they frowned at that, but that's probably still what I'll use. Thanks all, Dean (ps that part is called the crown, as I found out today!) I'd be inclined to use polyurethane caulk...it sticks better to mortar and the good stuff is rated for 50 years. I used it to caulk the joint between some stone stair treads and the brick risers. After a couple of days I tried to remove a little section to redo it neater and I could *not* get it out; it just would not separate from either the stone or the brick, no matter how I pulled it or pried it. The stuff I bought was colored to match concrete (not that it really matters on a chimmeny cap). They've started carrying it at the big box stores round here (OH). Paul |
#7
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Crack in chimney top...
Sounds good! Thanks.
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#8
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Crack in chimney top...
"dean" wrote:
High all My chimney is a masonry chimney made of good quality white bricks thoughout. At the top is a cement cap, maybe 6 inches think,where its rounded over into the flue rain guards. That cement top is cracked on one side, with a gap of maybe 1-2mm for about 1 foot. I was considering just filling it with either silicone or regular caulking. And tips? Metal strap required? Ignore it? It doesn't look like its about to crumble or anything. Thanks! Dean I had my chimney crowns fixed a number of years ago. The mason used a cement or mortar mix to fill the cracks and top off the existing mortar. He alsoput in a fiberglass fibers additive to strengthen it against cracking. I would also use a latex additive to your mix. Dave. |
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