Tile Over Wood Subfloor

First changes in humidity make solid wood shrink swell and cup more than plywood.

Tile over wood subfloor.

Place hardiebacker in staggered pattern so no four corners meet. Fasten hardiebacker 1 4 board with corrosion resistant screws or galvanized roofing nails 8 inches apart. If water seeps through the tile installation to the underlayment it will not cause the wood to swell as happens with interior grade plywood. Check for dips in the floor by sliding a 4 foot to 6 foot straight edge in different directions all around the room.

According to backer board manufacturers and tile setters installing backer board directly over an old solid wood subfloor is risky for a couple of reasons. When used as an underlayment the plywood sheets are laid over the osb or plywood subfloor for a two layer base. The most current ansi standards for tile installation a108 1999 specifically exclude osb. Lay down a vapour barrier overtop the concrete pad then fasten 3 4 inch plywood using a ramset to the concrete pad.

A couple options considered are. Thinset is the wet base that you first trowel on the plywood to make the tile. While tile can be laid on plywood do not install tile directly onto. Use thinset with a higher latex content.

Use the right. If the tile is being installed in a bathroom consider applying an isolation membrane over your wood subfloor to further protect against expansion and contraction. Tips for laying tile on plywood subfloor for flooring use intervening sheets of plywood. Trowel out bed of unmodified thinset over wooden subfloor.

Score the surface of the board. Install 1 4 inch cork by thin setting it to the concrete pad then installing the heating system by fastening it to. Lay down 1 2 inch thick cement backerboard over the wood subfloor or hardwood. Second the strength of wood boards isn t always consistent.

This is not to say that tile cannot be installed reliably over an osb subfloor. However there is significant debate in the tile industry regarding the conditions necessary for a long lasting successful installation. Tape over holes and. Prepare a wood subfloor for tile a successful tile installation project requires a level surface.

Installing over existing tile before installing ceramic tile over the existing tile you will need to roughen the existing ceramic tile surface to produce a better grip for the new ceramic tile. If you find hollows and valleys you must fill them with a self leveling underlayment. Tape joints with alkali resistant cement.