With a floor leveling compound the smooth subsurface is easy to create.
Can you pour self leveling concrete over tile.
But the flooring is uneven.
You can go over it with more self leveling if you want.
You can also fix spots with mapei planipatch or ardex feather finish.
Or you can go over with vinyl.
Concrete often has scratches holes marks and drips that create a very uneven surface that cannot be used to lay tile while wood boards can warp over time creating hills and valleys instead of the straight smooth needed for proper tile insulation.
Another and i think better way would be to use a self leveling concrete that can be aplied in a much thinner coat and if head room is a problem would.
Self leveling compound can set up and become hard fairly quick within 15 to 30 minutes after it has been mixed with water and reaches the consistency.
All that s required is spreading the compound over the prepared tiles.
Whenever you need to repair level or raise a floor self leveling concrete can be a fast cost effective solution.
Self leveling concrete can be used as an underlayment for tile carpet or other floor coverings.
Can i use self leveling concrete over the vinyl tiles we don t want to take the time to take the tiles off but will if necessary.
Leveling mixes are designed to make smooth surfaces and are most often used on concrete or wood.
You most certainly can pour a new floor over your ceramic tile.
When the old floor material is a still strong ceramic tile surface though you can place the new covering over the tiles as long as you create a smooth surface beforehand.
If you were to use conventional concrete i would say you should pour a minimun of 3 inches both for strength and to ease leveling.
The amount of time that you need to wait when working with a self leveling compound once it is poured before you can lay a ceramic tile floor depends on the product that you are working with.
Look for products that can be applied over cutback adhesive or vct vinyl composition tile.
Takeaways for a successful self leveling pour.
I don t know anything about vinyl but it won t have the flatness requirements that tile has.
For a successful self leveling concrete installation follow the seven tips in this.