Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Flooring

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-05-2012, 12:20 PM   #1
Newbie
 
Join Date: Mar 2012
Posts: 2
Share |
Default

Tiling over old adhesive


So we have a house from the 50's that had 4 floors in the kitchen. the top layer was a floating floor that was installed by me about 10 years ago when I was inexperienced. The next to levels were a vinyl tile that just had a sticky back that came up relatively easy. The last layer was a diamond shaped tile that looks like it was installed when the house was built that has a black tar like adhesive over the concrete slab.

Ultimately, I'd like to install a ceramic tile on top of the slab. To compound the issue, I have a raised area in the center of the floor that appears to be somehow be caused by the concrete and not the adhesive layers.

My thought was to apply a SLC to level, and then use one of those thinsets that is supposed to be good over cutback adhesive(I've done some research and heard this term used, but I'm not sure if this is cutback adhesive or not). But I have concerns about the SLC not sticking to the adhesive.

If this isn't possible, could I just run a straight line across the floor taking account the height that I want the tile to be and the low spots, and just put in more mortar in the low spots?

Lastly, I'm also considering having someone else take care of this for me, but I was wondering if anyone knew what the labor would cost to have someone reliably lay about 200 sq feet of tile on this floor of mine so that it ultimately level? I understand it can vary, so ball park is fine.

scanale42 is offline   Reply With Quote
Old 03-05-2012, 06:33 PM   #2
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,037
Default

Tiling over old adhesive


You might be able to lower the peak instead of raising the entire valley. Using SLC is usually not the right answer in cases like yours.

You need to analyze the contours of your floor and how much higher the high spots is. Let's start with a good description of that.

Jaz

__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Old 03-05-2012, 07:13 PM   #3
Member
 
JetSwet's Avatar
 
Join Date: Jan 2012
Location: Lagrangeville NY
Posts: 954
Default

Tiling over old adhesive


Post up a photo if you can.
You mentioned this is a slab correct?
If so there will be next to nothing that you can do about the center being higher, how much of a dip on the sides is there?
If the sides aren't that off from the top maybe a slc or you can morter the sides to level.
JetSwet is offline   Reply With Quote
Old 03-06-2012, 12:36 PM   #4
Newbie
 
Join Date: Mar 2012
Posts: 2
Default

Tiling over old adhesive


Thanks for the responses. I'll try and take a couple of pictures later tonight and post them. I'll get a close up of the adhesive and where it meets the concrete, and I'll get one with a level on the uneven portion and measure the lowest valley.

Essentially what we have is a 20x10 foot space. About half of it is dedicated to the kitchen area. About 10 feet to the right, we have a small room that hides the furnace, and the laundry room on the far side.

So the main kitchen area is primarily contained in a 10'x10' space and the uneveness is pretty much only located there.

There is a peak running perpendicular to the doorway to the kitchen that seems to run about 6 feet long before leveling out, and a valley on either side of it. The edges of the kitchen, on either side of the valleys level out again. So as a crude layout, it would look something like this:

LLLLLLLLLLL
LLLLLLLLLLL
LLVVVVVLLL
LLPPPPPPLLL
LLVVVVVLLL
LLLLLLLLLLL
LLLLLLLLLLLL

So the L's are level, the V's are valleys, and the P's are the peak. Like I said, I'll try and get a couple of pictures
scanale42 is offline   Reply With Quote
Old 03-06-2012, 03:23 PM   #5
Tileguy
 
JazMan's Avatar
 
Join Date: Feb 2007
Location: Troy, Michigan
Posts: 4,037
Default

Tiling over old adhesive


Forget the level, we don't care about level that much, the tile cares about flat not level. A 4' level isn't long enough to be of much help.

Get a long straight edge to determine how to proceed. I would say a 10' straight edge is good enough. Otherwise you can use string or laser.

Waiting for the pics and another description.

Jaz
__________________
Tile 4 You LLC Troy, MI

DITRA Installs - KERDI Watertight-Mold-Free Showers. I have NEVER made a mistake, I thought I did ONCE, but, I was WRONG! A+ BBB rating - est. 1987 - over 50 yrs. exp.
JazMan is offline   Reply With Quote
Old 03-06-2012, 04:28 PM   #6
Member
 
JetSwet's Avatar
 
Join Date: Jan 2012
Location: Lagrangeville NY
Posts: 954
Default

Tiling over old adhesive


And just as what the op has posted with the p,v and L the floor is not flat by any means.

JetSwet is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
removing carpet adhesive before tiling ratherbefishing Flooring 1 01-11-2012 03:43 PM
applying adhesive for commercial floor tiling amakarevic Flooring 8 11-10-2011 06:00 PM
Omnigrip adhesive for tiling kitchen countertop? tforse Kitchen & Bath Remodeling 3 04-29-2011 06:33 PM
tiling over cutback adhesive residue kailuacathy Flooring 2 09-09-2010 08:03 PM
What adhesive to use for tiling wall? sz8 Flooring 4 03-21-2008 05:55 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.