tongue-and-groove material, screw the underlayment down right through the vinyl with 1-1/4-in. drywall screws spaced every 6 in. Use 1/4-in. thick cement board instead of the usual 1/2-in.

Self-leveling underlayment is a great choice under any tiled floor, but it’s the absolute best choice when installing tile over an in-floor heating system. Installing cement board won’t work ...

Most concrete contractors have probably worked ... this time with the Drytek 7200 self-leveling underlayment. McDougall placed a 1/2 inch of the Drytek 7200 over top the Drytek 3000 to finish ...