How thick does my subfloor need to be for tile?
1 1/8″
The subfloor under the tile should be at least 1 1/8″ thick, with a minimum of 5/8″ thick exterior grade plywood topped by 1/2″ cement backer board.
Is 3/4 subfloor enough for tile?
Tile installed over wood floor systems MUST have a minimum of 1-1/4 inches of solid material beneath it. This means you can have a 3/4 inch wood subfloor covered by 1/2 inch plywood, cement board, or approved gypsum fiber underlayment.
How thick are subfloors?
Thicknesses for products used for subfloors are generally 23/32 inch (just under 3/4 inch), but thicker sheets are available where building codes call for them.
How thick should plywood be for a tile floor?
When using plywood, you’ll need to ensure it’s at least 12mm or more in thickness to create a rigid surface for your tiles. This, along with your tiles, will raise the level of your flooring, so be sure to bear this in mind before you get started.
Do I need a membrane under tile?
If tile is laid directly on top of concrete, this expansion and contraction will cause stresses that fracture or delaminate the tile. Other less common and more challenging substrates like asphalt and metal require an uncoupling membrane to ensure the tile will adhere to these surfaces.
How level should floor be for tile?
As noted in the first answer above, the surface to be tiled, in your case the floor, must be flat within 1/8” in 10′ when measured from the high points of the floor. To achieve this, be sure to use the appropriate patch or self-leveling compound (with the same manufacturer’s primer), but never thin set mortar.
How thick should plywood subfloor be for tile?
1 1/8″ thick
Plywood must be installed over an adequate subfloor and must be at least 1 1/8″ thick when combined with the subfloor. Interior-grade plywood and particleboard are not considered strong enough for a tile installation.
What subfloor is needed for tile?
Exterior-Grade Plywood Exterior plywood is an acceptable underlayment for tile and is preferred to interior-grade plywoods because the bonding adhesives used are waterproof. If water seeps through the tile installation to the underlayment, it will not cause the wood to swell, as happens with interior-grade plywood.
https://www.youtube.com/watch?v=ACw1G-cllqQ