Tile Over Painted Concrete Block Wall

Nail 3 4 expanded metal lath to the blocks with 1 1 2 to 2 inch concrete nails.

Tile over painted concrete block wall.

Answer answer it is possible to bond porcelain tile to a painted surface but it isn t recommended because the overall tile attachment is limited to the strength of the bond of the paint to the concrete. If your wall is freestanding with a top tile the center of the top area with the same tile that you chose for the sides of the wall but use bullnose tiles all around the top edges. While you can install tile directly on concrete problems erupt when the concrete cracks or shifts. This surface is called a scratch coat.

Hammer the nails through. Apply just enough of the adhesive to attach a few tiles at a time so that the adhesive stays moist and ready to receive the tiles. For application over an uneven concrete surface a lightweight waterproof construction board. Mortar cannot be installed directly over painted concrete itself.

Inspect the concrete surface. Place strips of blue painter s tape over the tile face sticking each end to the wall to prevent the tiles from sliding. Continue placing the first course of tiles in the same manner using spacers. Mark the wall in the middle with a chalk line to create a guide for the tiles.

Painted concrete can be made porous with sandblasting or other hard abrasive actions. You should either strip or bead blast the concrete and thoroughly clean it. A scratch coat will give the mortar something to hold on to instead of the layer of paint over concrete. With a notched trowel apply the adhesive at the bottom of the cinder block wall.

Before beginning a tile installation over a concrete wall perform an inspection to look. Can i put tiles over painted concrete walls. If the paint comes loose so does the tile. Tile cannot be attached directly to painted concrete as the thin set will not adhere well to the paint.