ceramic tile flooring

Reply

  #1  
Old 11-07-07, 08:08 PM
T
Member
Thread Starter
Join Date: Nov 2007
Posts: 1
Received 0 Votes on 0 Posts
ceramic tile flooring

I tore up some old stickdown vinal tiles in my kitchen and want to lay ceramic tile. Problem is the concreate slab is very sticky with old glue. Do I need to worry about this or can I spread my thin set and go at it?
Tommy D
 
  #2  
Old 11-08-07, 04:46 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Received 6 Votes on 6 Posts
Welcome to the forums! In order to properly lay ceramic tiles on your existing subflooring, you will need to install a concrete backer underlayment (CBU) over it and then the tile. This tends to strengthen the floor and gives you a better, water resistant substrate for the tile. Since you have to install the cbu, don't worry too much about the stickiness. Durock and Hardie make good cbu and it can be found in 1/2" as well as 1/4" 3x5 sheets. You will probably only need a 1/4".
 
  #3  
Old 11-08-07, 06:56 AM
S
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,623
Received 98 Votes on 86 Posts
Chandler: does he need a backing since he's on slab? We never use anything under the tile on slab and it's worked fine so far.
 
  #4  
Old 11-08-07, 08:45 AM
H
Member
Join Date: Jan 2006
Location: USA
Posts: 3,525
Received 8 Votes on 8 Posts
Agreed, no cbu over a slab. Either set the tile over the slab or install an isolation membrane over the slab and then tile.
 
  #5  
Old 11-08-07, 08:48 AM
H
Member
Join Date: Jan 2006
Location: USA
Posts: 3,525
Received 8 Votes on 8 Posts
Try some really hot water and a scraper to remove as much of the glue as you can.
 
  #6  
Old 11-08-07, 02:50 PM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,964
Received 6 Votes on 6 Posts
Duh! I have to use ten characters, but the first word describes my embarrassment for not seeing the word concrete. Sorry about that.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: