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tile underlayment

  1. Backerboard Holes

    Yes, my first new tile job, in the kitchen of my 1955 house, where the sub-floor is 3/4" plywood and installing 1/4 cement type backerboard before the new ceramic tile goes down. AHOY! I made a mistake! I dry ran some pieces of backerboard wrong side up, (until I read the label) drilled pilot...