self-levelling compound

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Posted by: from Mississauga
2/12/2012 at 4:31:47 PM

Can I tile over the self-leveling compound (on basement substrate) using Ditra or Protegga without using a subfloor?

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Date/Time2/12/2012 at 9:30:47 PM

Hi Michael, If you used self leveling concrete on your concrete basement floor, you don't even need a sub floor or an uncoupling membrane. It is only needed where there is a possibility of movement. Solid concrete is a great substrate for tiles.

Good Luck with it!

Jim Kuzma

Kettleby Handyman Services

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Date/Time2/12/2012 at 11:14:52 PM

As mentioned concrete is very stable, however if it ever cracks, it will come straight through the tile. A membrane is cheap insurance to prevent this. One other thing to consider is that tiles without an insulated subfloor are very cold on the feet. They will be the same temperature as the concrete is right now.

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