Step 3 : Seal the joints with tape
Cover the joints with fiberglass tape and then use a trowel to apply a thin coating of adhesive to force the material into the gaps between the panels. Smooth the edges of the tape with the flat edge of the trowel.
Step 4 : Use a floor resurfacer if necessary
Apply a self-leveling epoxy floor resurfacer on an uneven cement floor to create a uniform surface before adding a new floor. The material bridges gaps and holes so a new flooring has a sound, level base.
Step 5 : Mark lay out lines on subfloor
Using the center of the room as a starting point establish layout lines or two perpendicular lines that intersect in the center of the room which you use as a guide for laying down the tiles. Use a framing square on the intersection of the two lines to make sure they are square and then snap a chalk line. Use the chalk line as a guide to place the tiles along the edges of it.
Step 6 : Dry fit the tiles
The goal is to use the most full size tiles as possible which will look the best and require the least number of cuts in the tiles. To plan the tile lay out dry fit them moving them around to create the most attractive placement.
Step 7 : Mix thinset mortar
Follow the manufacturer's directions for mixing thinset mortar using a mortar paddle attachment on an electric drill. A 5-gallon bucket is a good size container to hold and mix the mortar.
Step 8 : Spread adhesive on lay out lines
Beginning at the center of the room first spread adhesive with a trowel working at a slight angle. Use the jagged edge to comb the mortar and then set a tile in place and press it down firmly to seat it in the mortar. Check the backside of the tile to make sure the mortar is evenly spread on the tile. Use a twist and turning motion to secure the tile in the mortar.
Step 9 : Continue laying tile on the center line
Work your way along the center line and butt the edges of the full size tiles against each other using spacers so they are even. Then begin laying the outline or cutout tiles that require cutting.
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