exterior tiles forum

Attach cultured (fake) river rock to tile board

BunniCakez , Sunday, 15th of August 2010 04:48:58 PM

I am making an address/mailbox pillar for the front of my driveway, using 
BunniCakez
manufactured river rock (flat on one side).The base of my pillar is 
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exterior plywood.Can l just screw on pieces of concrete tile board (1/2'') 
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and then mortar or thin-set my fake rock onto it?I am trying to avoid 
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paper, wire mess, etc.
 
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Hops , Monday, 16th of August 2010 02:30:02 PM

You can use concrete board but you should install tarpaper over  
Hops
the plywood first as the other guy suggested. The difference between  
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applying the stone to mesh or concrete board is that you can apply it  
Joined: Monday, 31st of May 2010, 15:27:04
directly to the mesh using mortar. The process to use with the concrete  
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board however is to apply a scratch coat of mortar to the concrete board  
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(put about 1/2'' coat of mortar on & then scratch it up well). Then when  
you apply the stone to the scratch coat with mortar, the stone will adhere  
well.  
 
 
 
 
 
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funsize snow bunny , Tuesday, 17th of August 2010 11:59:38 PM

I'd have to completely disagree with the other responder.  
funsize snow bunny
Manufactured stone has certain construction requirements that you are  
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bi-passing. Apply 30 lb. felt or Tyvek over the 3/4 plywood, starting at  
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the bottom if seams are involved to allow the seams to lap over like a  
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roof shingle. Apply the wire lath & make sure that the perforations are  
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angled upward, not downward. Now you can apply the stone. Do it the easy  
way & be prepared to start from scratch for a second go around.  
 
 
 
 
 
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Caseydoll , Wednesday, 18th of August 2010 02:32:33 AM

Yes certaily. Not much else needs to be said, though I wouldn't  
Caseydoll
use thin set. Certainly there are exterior tile mortars that will work, as  
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well as regular ready mix concrete.  
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Steven Wolf  
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