Tiling Bathroom Floors

January 15, 2006
tiling bathroom floor

You may wonder how to install bathroom ceramic flooring; tiling bathroom floors is the same whether you are using ceramic or porcelain tiles. The details of how to lay slate flooring in the bathroom isn’t much different from ceramic tiles. Installing bathroom flooring, whether you are tiling bathroom walls or floors, takes planning and careful execution. After you grout ceramic bathroom floors and let it dry thoroughly, be sure to put a sealant on the floor to waterproof the grout and minimize staining potential.

Tiling bathrooms floors takes planning and can be time-consuming but the results are dramatic and well worth your while. Ceramic tiles can be laid in unique patterns, shapes, colors and textures, which allows you to personalize your bathroom and fit your own style.

The surface of bathroom floor tiles is normally glazed but unglazed is also available. The strongest tiles are those that are thicker, larger, and darker on their underside. These tiles are the most durable and are less likely to break when being installed.

Preparing Your Bathroom For Installation

Once you have chosen your tile, you must determine how many you’ll need for your project. To do this, measure the length and width of the tile, and the length and width of the room. Divide the length of the room by the length of one tile, and divide the width of the room by the width of one tile. Always remember to round up to the next whole number when dividing these numbers. Now multiply the two whole numbers together to get the total number of tiles needed for your bathroom. We recommend buying a few extra tiles in case of breakage during installation or future damage that may be hard to match later.

Before you start laying the tile, plan your design and lay it out on paper, taking into account the fixtures. The pattern should work around the fixtures and not interrupt the design, which is especially important if you are using different shapes or have an intricate design. Since the level of the floor will be raised once the tiling it laid, it’s important to remove any floor-level cupboard doors and any inward swinging main doors. The height of these doors will have to be adjusted before re-hanging to accommodate the height of the new floor.

You’ll need straight lines on the floor before you begin to ensure the tiles will be laid straight. You can do this be either laying the tiles out onto the floor and drawing in layout lines, using a string nailed to the floor or making a chalk line with a chalked string. Starting with a clean sub-floor, spread the waterproof adhesive from the center of the room using a notched or plain trowel (as directed by the manufacturer). Spread enough mortar for about 10 tiles within one section, holding the trowel at a consistent angle. If you have layout lines on your floor, be careful not to cover the lines with the adhesive. The adhesive should be at a uniform height so that the tiles can lay perfectly flat. If your bathroom has a drain, make sure to gently slope the mortar towards the drain.

Installing Your Ceramic Tile Floor

The proper placement of the first tile is vital because its position will influence the placement of the rest of the tiles. As you set the remaining tiles, align them with your layout lines or string, and keep a consistent space between the tiles using plastic spacers or the spacing lugs that come with the tile. The plastic spacers or spacing lugs will ensure that you have straight and even grout lines between the tiles.

As you lay the ceramic tile, constantly use a level to check the horizontal level. You can use a rubber mallet or a 2×4 and a hammer to gently level the tiles. After setting your first section, clean up any adhesive that has leaked up between the tiles with a pencil or putty knife and clean the top of the tiles with a sponge. Plus, remove the spacers used between the tiles. Repeat this process until the full, uncut tiles are all set and allow to dry for 24 hours.

Once the full tiles are set, the border and detail tiles can be measured, cut and set using the same process. Since the walls may not be square, each tile should be measured and cut individually. You may find that the perimeter space or small detail areas are too small to lay the adhesive onto the sub-floor. In this case, you’ll need to spread the adhesive directly onto the tile itself.

Once all the tiles are laid, the floor can be grouted. Using a plastic scraper, push the grout between the gaps in the tiles, making sure to apply a uniform coating. The grout should be smoothed between tiles so that it is smooth and even. Wipe the grout off the tile surface before it sets up because removing it after is much more difficult. A few days after the grout has totally dried, wipe the floor surface with a dry cloth and apply a silicone sealer to preserve the grout.

Installing bathroom flooring with ceramic tiles takes planning and some skill. If you take your time and have fun with it, your new floor will change the look of your bathroom and will last for years.


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