Ceramic Tile Over Osb Subfloor

Plywood and osb expand and contract with humidity and temperature much more than ceramic tile.

Ceramic tile over osb subfloor.

Subfloor floor covering or finish floor is the term for the topmost eventual floor the floor that you walk on and see. As the plywood or osb expands the ceramic won t. This guide will show you how to prepare your subfloor for a tile installation project to ensure that it s fit to support ceramic or porcelain tile. Regular seasonal humidity shifts are significant enough to make the average 10 x 10 wood subfloor floor expand or contract as much as 1 2.

Underside of an osb subfloor must be properly protected from moisture to prevent the sheets from warping. The house is 25 years old and this is the original tile. Concrete expands and contracts and that type of movement can also crack the tiles and the grout. However you re not out of the woods.

Osb panels provide an excellent base for many types of finished flooring including ceramic tiles if careful attention to the construction and preparation of the subfloor is paid in order to avoid costly callbacks. However there is significant debate in the tile industry regarding the conditions necessary for a long. Because of issues of moisture movement and adhesion ceramic tile will work well with certain types of subfloor underlayment systems and can go dramatically wrong with other subfloor materials. I m not sure how chances are an osb subfloor means the joist structure is built to minimum standards.

Always follow the manufacturer s installation. The tiles broke way too easily so i was suspicious and when removing the pieces of tile i found wood rot which caused a hollow effect under these tiles tile over wood 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. The most current ansi standards for tile installation a108 1999 specifically exclude osb.

I honestly don t know where you come up with this stuff john. We all know solid blocking can make a floor feel more solid but from an engineering standpoint it does nothing to improve the deflection ratio. This is not to say that tile cannot be installed reliably over an osb subfloor. Laminate luxury vinyl and ceramic tile are examples of floor coverings.

Is oriented strand board acceptable as a part of a tile system. For this reason ceramic and porcelain tile floors can be considered somewhat delicate despite the inherent strength of the material.