Does Bath Floor Need A Sub Floor Board

Osb is a composite of glue and strips of scrap wood in.

Does bath floor need a sub floor board.

According to backer board manufacturers and tile setters installing backer board directly over an old solid. It is generically called cement board or backer board or it can also be referred to by one of the common brand names such as densshield hardiebacker and wonderboard. For more information download our pdf about types of subfloors. It supports your decorative floor finish whether it s carpet hardwood vinyl laminate or tile.

Wooden subfloors in older houses need to be strengthened and stabilized before backer board and tile are installed. What is a subfloor. 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. The best method is to refasten the subfloor then add a layer of plywood.

Depending on when a home was built a subfloor could be made from softwood boards like pine or fir plywood or osb oriented strand board. I need to match the height of the existing tile in the bathroom. Cement based backer board. By choosing the right material from the start your bathroom will stand a better chance of withstanding long term damage.

The finished floor is then installed on top of the subfloor. Preparation for installing floor tile depends on the type of subfloor in the room you are tiling. What size plywood do i use for a subfloor. Typically a subfloor is made of plywood or oriented strand board osb panels.

A subfloor is the solid material beneath your floor covering. 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. 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. Allow 1 4 inch gap along the walls and between the joints for expansion.

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. I plan on thinsetting and screwing cement board to the subfloor then redgard then thin set and tile. The subfloor is the decking installed on top of flooring joists. A subfloor is the bottom most structural level of your floor.

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.