A subfloor is the layer at the very bottom of your shower pan.
Get Bathroom Subfloor Images. The floor must also handle the weight of the tub, shower, tiles and other fixtures. Issues with a subfloor become far more apparent when walking through a living room feels more like a stroll through rolling hills.
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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. If you have a concrete slab floor, the slab may be considered the subfloor. Cdx plywood (¾) in particular is used often because it has a high level of resistance to moisture and humidity.
Most homes will consist of a standard subfloor constructed of running boards laid over floor joists, a plywood layer over the running boards, or if on a first floor, the subfloor can be a concrete slab.
Subfloor damage in the bathroom usually comes from a leaking toilet, but it can also be the result of a persistent sink drain leak or even a drip behind the walls. That usually means the underlayment and the subfloor also get wet. It's important to consider the environment a bathroom floor must hold up to. This video covers measuring , cutting , and the correct tricks for installing, to ensure a good bond and long lasting results that never squeak!
