Tile Over Subfloor

If you find hollows and valleys you must fill them with a self leveling underlayment.

Tile over subfloor.

If ceramic or porcelain tiles are installed on an uneven surface you run the risk of allowing the tiles to crack or loosen. While tile can be laid on plywood do not install tile directly onto. Thinset is the wet base that you first trowel on the plywood to make the tile. They require a subfloor that s designed to account for this without any fluctuation or movement.

The best method is to refasten the subfloor then add a layer of plywood. Ceramic tiling can be installed onto 23 32 osb subflooring panels where the panels are supported by 16 o c. Check for dips in the floor by sliding a 4 foot to 6 foot straight edge in different directions all around the room. However there is a new product by schluter called the ditra system.

A successful tile installation project requires a level surface. First changes in humidity make solid wood shrink swell and cup more than plywood. No matter how firm the subfloor. Wooden subfloors in older houses need to be strengthened and stabilized before backer board and tile are installed.

Use the right. Manufacturers generally recommend that the deflection of the subfloor system be limited to no more than span 360 under total load. If the underlying flooring structure which usually consists of floor joists a subfloor and an underlayment is not in good shape the ceramic tile floor will flex underfoot leading to cracked grout joints and a ruined installation. Fill seams in the subfloor with caulk.

Use thinset with a higher latex content. Ceramic and porcelain tile are among the most rigid materials for flooring. The plywood will expand and contract at a different rate as the tile causing cracks to develop in the grout lines or tiles over time. 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.

First of all tile definitely should not be put down over a wood sub floor. If you are installing ceramic tile over another surface it is important to follow specific recommendations and steps to make sure there will be proper bonding. While you can lay tile directly over a concrete slab using thin set adhesive don t make the mistake of applying tile directly to a plywood subfloor. When installing a ceramic tile floor on a concrete subfloor you don t have to worry about flexing as long as the concrete slab is at least 1 1 8 inch thick which most slabs are.

However you re not out of the woods. It is an orange colored membrane designed as a backer for tile. Tips for laying tile on plywood subfloor for flooring use intervening sheets of plywood.