Fix Dip In Plywood Floor For Tiling

We show every step to repair a big hole in the subfloor.

Fix dip in plywood floor for tiling.

Plywood is made with layers of wood veneer laid with the grains at approximately right angles and then glued together. Pour the liquid underlayment into the dip in the floor. I was thinking possibly a 16 wide 1 2 plywood where the leading edges are planed gradually to an 1 8 and screwed down the center to the joist and on each edge across the subfloor. On a plywood subfloor you need either a layer of cement backer board or an underlayment membrane like custom building products wonderboard and redgard between the subfloor and tile for the thin set adhesive to achieve a good bond.

Laying tile over a plywood subfloor can be tricky but if you prepare the sub floor properly your tile floor will last for a lifetime. The counter posed grains and strong inter sheet adhesive give this manufactured wood material its strength and resistance to warping. And the same size sheet of plywood subflooring costs 20 to 24. Recommendations for filling the big dip so that the underlayment is as tight and level as possible.

Or possibly just a 4 wide 1 2 screwed to the joist and 4. It s pretty easy when you know how. The short edges of the plywood must be centered over joists. Plan the layout of the plywood sheets so the long dimension of the plywood runs perpendicular to the floor joists.

Also make sure the joints between sheets in the underlayment are offset staggered from the joints in the original subflooring by about 1 2 sheet. Cement backerboard is made for tiling. Plywood can be part of a wall floor ceiling roof or even a boat. Make sure the subfloor will not deteriorate when it gets wet.

Backerboard does not shrink or expand when it comes into contact with water mortar and grout both contain water. Laying tile over a plywood subfloor can be tricky but. To be sure maybe drill up to 6 evenly spread out holes in the plywood at least 4mm deep or straight through in the areas to be tiled so the adhesive sinks into the holes and hardens hence creating a stronger fix. Particleboard is not an acceptable subfloor material for tiling projects.

Clean and heavily score area to where tiles are to be fixed it sounds like the adhesive does not have a rough surface in which to secure itself to. It will seek its own level and once dry will create a flat and even surface. Plywood substrate alternatives. Fix is typically.

All done from the top side.