Mounting Heavy Item To Plaster Covered Brick Chimney - General Discussion - Contractor Talk

Mounting Heavy Item To Plaster Covered Brick Chimney

 
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Old 07-08-2019, 09:44 PM   #1
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Mounting Heavy Item To Plaster Covered Brick Chimney


My parents live in an old house with lathe and plaster walls. They have an unused chimney coming up through their living room. This chimney is covered directly with plaster-no convenient studs to work with. Here's my problem: I would like to mount a mantle on this wall. While it's not extremely heavy, I do like to over-engineer/overbuild things to prepare for things (such as maybe my younger niece and nephews deciding to hang from it). Obviously I can't prepare for everything, but I do want it to be mounted as securely as possible. Now, I could try to use longer Tapcons into the brick or even run toggle bolts into the chimney, but what if I drill through I grout line? Note: I can't see where the grout lines are through the plaster. Of course I could deliberately remove some of the plaster to determine the grout pattern, but I *really* don't want to have to do that. Any thoughts??
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Old 07-08-2019, 09:53 PM   #2
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


I would attach some kind of ledger board with tapcons like you said. If it's an old chimney, you should know if you accidentally hit mortar. That old lime mortar gets pretty soft, especially after running gas appliances for decades, eating away at it.


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Old 07-08-2019, 10:06 PM   #3
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


Dielectricunion...Thanks for your answer. It seems very sensible. While I don't completely trust myself to be able to feel mortar lines, maybe I should. At any rate, I have no other good option yet. I will see if anyone else responds before I'm ready to start this project, but I'm guessing I will end up going with your suggestion-or something very similar. Thanks again.
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Old 07-08-2019, 10:20 PM   #4
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


Or start drilling your pilot holes with the drill NOT in hammer drill mode. Then it will go relatively easily when hitting mortar but should slow down considerably if youre into clay brick


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Old 07-10-2019, 01:53 PM   #5
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


Is there lathe on the brick ?, a sleeved anchor of some sort ?, Tapcons would not be my choice I would be concerned about cracking old plaster when sucking up the mantle.
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Old 07-10-2019, 02:47 PM   #6
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


lathe "lath"
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Old 07-10-2019, 04:32 PM   #7
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


Now I know cramming that 4 year degree into 6 was a mistake I should have taken the spelling part for another 50k
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Old 07-10-2019, 09:49 PM   #8
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Re: Mounting Heavy Item To Plaster Covered Brick Chimney


Quote:
Originally Posted by sunkist View Post
Is there lathe on the brick ?, a sleeved anchor of some sort ?, Tapcons would not be my choice I would be concerned about cracking old plaster when sucking up the mantle.


The plaster laid over brick chimneys has always been the most sound, in my experience- even when most of the rest of the walls are failing


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