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-   -   Issues with hardibacker and cultured stone (http://www.diychatroom.com/f105/issues-hardibacker-cultured-stone-156080/)

jtorral 09-06-2012 10:40 PM

Issues with hardibacker and cultured stone
 
Greetings,

I installed cultured stone around a fireplace. I used regular mortar and applied directly to the backerboard without a scratch coat. Needless to say, the stone comes off the backerboard easily and cleanly leaving all the mortar still attached to the stone and a clean backerboard surface. after further reading, I see many suggestions to use thinset on th ebackerboard and mortar on the stone. Well, I am short on supplies and am wondering if I can use the stone that came off cleanly and just apply thinset or more mortar to th eback of the stone that already has dried mortar on it. I would creat a scratch coat on the backerboard with thinset before doing anything else.

What do you think ?

Thanks,

JT

jomama45 09-07-2012 06:34 PM

Are you talking about removing all of the stone & thinsetting them back on?

How thick is the hard mortar on the back of the stone?

Bud Cline 09-08-2012 02:57 PM

The stone is installed improperly and it will all remove itself in a short time. Just as well take it all down and start over.

Next time use modified thinset or a wire/metal lath and scratch-coat method using the proper mortar.:)


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