Bathroom Subfloor

The bathroom floor gets wet. In this article we will discuss the best options for your bathroom subfloor and underlayment. On wood frame floors the subflooring provides a continuous structural surface over the floor joists.

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Before installing a tile floor a subfloor and underlayment is necessary.

Bathroom subfloor. Tile floors are especially heavy with layers of cement board mortar tile or stone and grout. The subfloor may warp for any number of reasons including an overflowing bathtub shower or plumbing leak in the bathroom. Traditionally exterior grade plywood has been the subfloor material of choice for many bathroom flooring projects. Once water gets into the subfloor the wood warps and fractures tile or.

Using the original sub floor nails as a guide mark the floor joist locations on the wall to know where to insert the screws. It s important to consider the environment a bathroom floor must hold up to. Plywood as a subfloor material. Plywood is made by gluing alternating layers of wood veneer.

In basements and in homes with slab on grade foundations the subfloor may simply be a concrete slab. The floor must also handle the weight of the tub shower tiles and other fixtures. Often the subfloor consists of plywood that is nailed or screwed to the construction floor. Under normal conditions a subfloor can last as long as the house itself.

The experts show how to install the subfloor in a bathroom. The subfloor is the foundation beneath finish flooring materials. Some form of subfloor is found beneath every type of floor whether it is hardwood carpet cermic tile natural stone vinyl or laminate and choosing the right subfloor material and installing it correctly is the key to a great floor that performs well and lasts for decades. Whether you are remodeling a bathroom or building out a new bathroom when it comes to choosing the best subfloor for bathrooms you definitely don t want to skimp.

This video covers measuring cutting and the correct tricks for installing to ensure a good bond and long lasting results that never squeak. Before finish flooring is installed on top of a plywood subfloor you must waterproof the subfloor especially in a bathroom. That usually means the underlayment and the subfloor also get wet. Cdx plywood in particular is used often because it has a high level of resistance to moisture and humidity.

Cost skill level start to finish 1 day. If you do not waterproof the subfloor moisture can make its way under the subfloor and cause mold growth or other damage. But keep an eye out for damage in case you need to replace a subfloor sooner.