Should I removed K3 board underlay


  #1  
Old 07-12-05, 07:41 PM
gordchan
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Should I removed K3 board underlay

I removed old lino from bathroom, with K3 board as underlay. Can I put plywood on top of K3, then lay the floor tile ?
Please advise.

Thanks
Gordon
 
  #2  
Old 07-12-05, 07:53 PM
T
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K3 is particleboard and not a suitable substrate for ceramic tile. You will need to install tile over 1/2" concrete underlayment board.
 
  #3  
Old 07-13-05, 12:52 PM
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Pull out the particle board, replace with BCX plywood 1/2" thick, screwed to the original plywood layer then the cement board as stated above. BTW the cement board needs to be set in a bed of thinset to fill voids and airpockets then anchored with galvanized roofing nails or backerboard screws.
 
  #4  
Old 07-13-05, 01:32 PM
gordchan
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Originally Posted by twelvepole
K3 is particleboard and not a suitable substrate for ceramic tile. You will need to install tile over 1/2" concrete underlayment board.
thanks

Gordon
 
  #5  
Old 07-13-05, 01:32 PM
gordchan
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Originally Posted by Tileguybob
Pull out the particle board, replace with BCX plywood 1/2" thick, screwed to the original plywood layer then the cement board as stated above. BTW the cement board needs to be set in a bed of thinset to fill voids and airpockets then anchored with galvanized roofing nails or backerboard screws.
thanks

Gordon
 
 

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