Underlayment for Ceramic Tile Floors

Measure the dimensions of the rectangular gap in the floor with a tape measure and cut the plywood or OSB necessary to fill it, using a circular saw. Subflooring in a basement or for other concrete slab is an entirely different matter since you have no joists and there may be moisture issues.

The sheet vinyl must be single layer only and well attached. Tile can crack easily when flexed, but a stiff subflooring helps prevent this.

Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since Plywood made from different types of wood will vary in price. The edge of your underlayment is the place where the vinyl and the carpet meet.

Cut notches for the flange pipe, if necessary, so that you can fit the plywood underneath the flange ring.

Should I replace bathroom OSB subfloor with plywood? - Home Improvement Stack Exchange

Over-cut the corners. However, OSB is known for swelling around the edges when exposed to water. Oriented strand board OSB is similar to plywood but the structural differences are what set them apart.

Perimeter-bond vinyl: I had not even thought about the subfloor and how that might be influenced by our remodel. Where cut sheets are necessary, make sure the ends are centered on joists.

Subfloors and Underlayment for Ceramic Tile Floors

Very shiny vinyl must be scuffed up, or scarified, in order to provide a surface that tile adhesives can bond to. Unlike the subfloor, this is not a structural element, and it provides no strength to the floor. Knowing what type of subfloor to get can be a tricky thing. A concrete slab is also a good ceramic tile underlayment.

For this reason, ceramic and porcelain tile floors can be considered somewhat delicate, despite the inherent strength of the material.

I have concerns about the hardibacker sucking the moisture out of the unmodified thinset. Plywood tends to be stiffer than other subfloor materials, making it a great choice for tiling which requires a stiff solid surface.

Fastener spacing should be approximately 3 inches on the outside perimeter of each piece. August 20, 2 found this helpful.

Best sub-floor for bathroom?

Where rows of subfloor sheets are laid side-by-side, try to stagger the end joints so they do not line up from one to the next. Georgia-Pacific offers Plytanium DryPly which is designed to resist the problems created by high moisture and humidity. They can also create voids between the underlayment and the subfloor, which can develop movement, floor squeaks and nail pops later.

Remember Me?

How to Repair a Rotted Bathroom Subfloor Home Guides SF Gate

Guide to Wine Country Green State: This void can allow noticeable movement, floor squeaks or cause fasteners to poke through. Where there are structural issues with the joists, these should be remedied before laying the subfloor. The system comes in 2-byfoot panels that quickly and easily intstall using a tongue-and-groove system. What are some ways to have near instant hot water?

Light Fixture Sparks.

How to Install Bathroom Floor Tile: Part 2

In some modern construction, very long joists may be engineered joists , which use an I-beam construction of plywood or OSB panels framed at the top and bottom by dimension lumber. In older homes, it was not uncommon for the subfloor to consist of simple 1 x 6, 1 x 8, or 1 x 10 planks nailed diagonally across the joists.

The thinness and softness of sheet vinyl requires that it be installed on a surface that is very flat and smooth. About the Author Cheryl Khan loves to spend her weekends remodeling and fixing things around the house. When subfloor repairs are necessary, it's a good time for a bathroom remodel, including the installation of a new floor covering, because at least part of the old covering has to go.