Tile Over Wood Subfloor

If water seeps through the tile installation to the underlayment it will not cause the wood to swell as happens with interior grade plywood.

Tile over wood subfloor.

Tips for laying tile on plywood subfloor for flooring use intervening sheets of plywood. 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. When used as an underlayment the plywood sheets are laid over the osb or plywood subfloor for a two layer base. Place hardiebacker in staggered pattern so no four corners meet.

A couple options considered are. However there is significant debate in the tile industry regarding the conditions necessary for a long lasting successful installation. Use the right. Install 1 4 inch cork by thin setting it to the concrete pad then installing the heating system by fastening it to.

Lay down a vapour barrier overtop the concrete pad then fasten 3 4 inch plywood using a ramset to the concrete pad. Cut the backerboard to fit the edges of the room with a carbide tipped scoring tool. Lay down 1 2 inch thick cement backerboard over the wood subfloor or hardwood. First changes in humidity make solid wood shrink swell and cup more than plywood.

Fasten hardiebacker 1 4 board with corrosion resistant screws or galvanized roofing nails 8 inches apart. The most current ansi standards for tile installation a108 1999 specifically exclude osb. If you find hollows and valleys you must fill them with a self leveling underlayment. The compound must be allowed to dry completely before proceeding with tile installation which can be anywhere from 24 hours to a few days depending on the brand.

Second the strength of wood boards isn t always consistent. Splits and knots create weak spots that flex and lead to cracking tile. Prepare a wood subfloor for tile a successful tile installation project requires a level surface. Use thinset with a higher latex content.

This is not to say that tile cannot be installed reliably over an osb subfloor. Trowel out bed of unmodified thinset over wooden subfloor. Thinset is the wet base that you first trowel on the plywood to make the tile. 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.

Score the surface of the board. Tape joints with alkali resistant cement. While tile can be laid on plywood do not install tile directly onto.