RE: Does the existing floor need to be leveled?
Date: 2/10/2008 3:49 pm EDT
A room that rises or dives to the center IS NOT PLANE. Depending on the severity of the out-of-plane condition this may not interfere with the tile installation if the deformity is gradual. If surface conditions are such that tiles teetor drastically over an imperfection then cracking tiles could result.