||01-27-2007 05:45 PM
Is it bad to use mortar to level a floor?
We are about to put down the backerboard in our bathroom so that we can eventually put the new tile on top of that, however our floors are not completely level. The floor height varies +/- 1/8" (1/4 at the extremes). We know we need to level the floor below placing the backer board on it, because the last thing we want is for the backerboard to flex and ultimately cause cracks. Would it be bad to just use normal mortar to level out the floor (the same mortar we were going to use to afix the backer to the floor before screwing it in? We'd like to just use mortar if possible, and have the mortar slightly 'deeper' in some areas. We do have some 'self leveling' compoud, but to be honest.. it makes us nervous. We're afraid that since it's so liquidy, that it will find a crack somewhere and run down under the floor and onto the ceiling downstairs. HELP! * Also, is there a 'max' depth for the mortar?