Veneer Stone On Cement Board?

 
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Old 11-18-2009, 07:27 AM   #1
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Veneer Stone On Cement Board?


I'm working on my fireplace and was wondering if I can put the veneer stone right to the cement board. The cement board has two sides...smooth and rough. I put the smooth side towards the wall and left the rough side faced out. I was planning on putting the veneer stone on that, but some other masons told me to put the wire mesh up with a scratch coat. Is this really needed for an inside fireplace?
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Old 11-18-2009, 07:40 AM   #2
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Re: Veneer Stone On Cement Board?


what kind of stone is it? ledgestone I probably would mesh it, fieldstone I dont think would make a difference unless it was really slick, something like a bucks county limestone I would just stick it to the cement board

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Old 11-18-2009, 07:44 AM   #3
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Re: Veneer Stone On Cement Board?


It's Durango Ledgestone.
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Old 11-18-2009, 07:51 AM   #4
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Re: Veneer Stone On Cement Board?


yeah I would mesh it and use coarse thread screws just for the fact you never know what will happen,you might look up one day to see a kid climb the stone and get on the mantel,lol
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Old 11-18-2009, 11:40 AM   #5
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Re: Veneer Stone On Cement Board?


With out a doubt use mesh with scratch coat.

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Old 11-18-2009, 03:34 PM   #6
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Re: Veneer Stone On Cement Board?


I would say the mesh and the scratch coat are a waste of time and money. I would adhere the stones with thinset and be done with it. On an inside installation that is the only way I have done it. The thinset will out preform mortar mix when it comes to adhesion and that is the most important thing with cultured stone.
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Old 11-18-2009, 03:47 PM   #7
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Re: Veneer Stone On Cement Board?


No mesh. I did just that in my house around a wood stove. 2 yrs and no problems.
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Old 11-18-2009, 04:18 PM   #8
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Re: Veneer Stone On Cement Board?


No mesh, thinset.
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Old 11-22-2009, 05:56 AM   #9
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Re: Veneer Stone On Cement Board?


I'm with TSC.Throw in a little glue or get fortified thinset for a little added insurance.
I am very glad you noticed the rough side. Some of them idiots out there the crap they leave us to work with...
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Old 11-22-2009, 10:51 AM   #10
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Re: Veneer Stone On Cement Board?


Yes, if you use thinset, get a good quality modified like Mapei Ultraflex 2.
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Old 12-03-2009, 07:47 PM   #11
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Re: Veneer Stone On Cement Board?


We use thinset as a base coat over cement board. Trowel it on with a thick notch trowel and install stone with regular mortar after the thinset dries. I've even used this same technique on painted concrete block and it works great. Use a good thinset and you won't have any problems.
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Old 12-03-2009, 10:17 PM   #12
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Re: Veneer Stone On Cement Board?


No mesh, thinset....I'm with that....the thinset as a basecoat?that seems to add a step that is not needed.....Maybe attaching to painted block, but in that case, I would mesh....whatever you have success with....
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Old 09-25-2013, 06:55 PM   #13
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Re: Veneer Stone On Cement Board?


Quote:
Originally Posted by bartelconst View Post
We use thinset as a base coat over cement board. Trowel it on with a thick notch trowel and install stone with regular mortar after the thinset dries. I've even used this same technique on painted concrete block and it works great. Use a good thinset and you won't have any problems.
You did this for an exterior? but why the regular mortar, why not just the thinset itself? what thinset did you use?
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Old 09-25-2013, 06:56 PM   #14
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Re: Veneer Stone On Cement Board?


Quote:
Originally Posted by NJ Brickie View Post
I would say the mesh and the scratch coat are a waste of time and money. I would adhere the stones with thinset and be done with it. On an inside installation that is the only way I have done it. The thinset will out preform mortar mix when it comes to adhesion and that is the most important thing with cultured stone.
how about outside/exterior? is there thinset that can withstand exterior climate?
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Old 09-25-2013, 07:49 PM   #15
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Re: Veneer Stone On Cement Board?


get exterior grade thinset. ever seen exterior tiles? i know you have
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Old 09-25-2013, 08:55 PM   #16
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Re: Veneer Stone On Cement Board?


yes i'm looking into Ultraflex LFT from Mapei

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