Does Bath Floor Need A Sub Floor Board

What size plywood do i use for a subfloor.

Does bath floor need a sub floor board.

By choosing the right material from the start your bathroom will stand a better chance of withstanding long term damage. The best method is to refasten the subfloor then add a layer of plywood. The subfloor is the decking installed on top of flooring joists. Typically a subfloor is made of plywood or oriented strand board osb panels.

For more information download our pdf about types of subfloors. Cement based backer board. According to backer board manufacturers and tile setters installing backer board directly over an old solid. Arrange the plywood on the floor so the joints of this layer do not align with the subfloor joints below.

Would this calculation get me to the right height compressed thin set on top of sub floor 1 8 cement board 1 2 compressed thin set on top of cement board 1 8. The thickness of plywood. I need to match the height of the existing tile in the bathroom. Excess moisture in the subfloor is a common reason for early replacement of bathroom flooring but it can be prevented by choosing the right material from the beginning.

If the subfloor doesn t have enough stability you can usually but not always remedy the situation by installing cement backer board also called cementboard. Now largely regarded as the very best underlayment for ceramic tile in any application floors walls and countertops cement based backer board goes by many names. Allow 1 4 inch gap along the walls and between the joints for expansion. Osb is a composite of glue and strips of scrap wood in.

Wooden subfloors in older houses need to be strengthened and stabilized before backer board and tile are installed. It is attached to your home s floor joists and acts as a base for your finished flooring such as carpet hardwood laminate tile etc. A subfloor is the solid material beneath your floor covering. A subfloor is the bottom most structural level of your floor.

It supports your decorative floor finish whether it s carpet hardwood vinyl laminate or tile. Preparation for installing floor tile depends on the type of subfloor in the room you are tiling. The finished floor is then installed on top of the 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.

What is a subfloor.