Fixing Cracks In Concrete Floor Before Tiling

To repair larger holes in cement undercut the area before cleaning and filling it.

Fixing cracks in concrete floor before tiling.

How to lay tile over cracked concrete cleaning the concrete. Using a scraper and a wire. Sweep the concrete floor with a broom to remove any visible debris. Chisel the bottom of the hole until it is flat and enlarge it slightly so the bottom of the hole is wider than.

Ensuring that the cracks are completely clean before repair is key to ensuring that the repair work will hold. For small narrow cracks that do not show signs of moisture use concrete filler which can be. Cut strips of fiberglass tape designed to cover joints in cement backer board to fit over the crack. The membrane which is bonded to the slab with the same latex modified thinset that i use for installing the tile absorbs any additional movement in the concrete.

Mix the thin set mortar according to package directions replacing the water with latex additive to give the mortar. Allow the thinset to completely dry before you seal the. How to tile over cracked floors 1. And at only 0 8 mm thick the membrane can be used under almost any tile floor.

Force the thin set into the crack.