Installing a Shower Pan Membrane Liner for a Custom Ceramic Tile Shower

Installing a custom ceramic tile shower in your home is something a do it yourself homeowner can do with a little upfront knowledge. The most important aspect of a successful custom ceramic tile shower installation is properly installing a shower pan membrane liner. The shower pan membrane liner is used to ensure a leak-proof shower.

Shower pan membrane liners are used to funnel any water that seeps through the floor or wall grout to the shower drain below. The shower pan membrane liner is made up of a flexible type of plastic material that sits below a bed of mortar, and the tile, in the shower floor area.

Prior to installing the shower pan membrane liner, the floor of the shower needs to be pre-sloped to ensure that the water will flow towards the shower drain assembly. The pre-slope is accomplished by applying a layer of mortar to the floor of the shower unit area. The layer of mortar is troweled in such as way as to create a gentle slope from the shower wall edges to the center of the shower where the drain resides.

Once the pre-slope mortar has cured, the flexible shower pan membrane liner can then be installed. There are a couple of types of shower pan membrane liners on the market, with each having their own benefits. With either type of membrane, the homeowner needs to form and fold the material into the base of the shower area and secure it to the sides of the shower wall frame with staples and/or nails. In addition, an opening in the membrane should be cut out to allow the adjustable shower drain assembly to slip through.

With the shower pan membrane installed, the cementitious ceramic tile backerboard can then be secured to the framed shower walls. The backerboard is a rigid material that is ideal for attaching tile in wet areas such as a shower stall.

After installing the ceramic tile backerboard, a final coat of mortar needs to be applied on top of the membrane to protect it and to provide a solid base for laying the ceramic floor tile.

With the final coat of mortar cured, the ceramic tile can then be installed in the shower.

Once the tile and grout have been installed, the shower drain assembly should be adjusted so that the drain height sits flush with the finished ceramic tile floor.

For more information on installing a shower pan membrane liner, see the Shower Pan Membrane Liner Installation EBook from HomeAdditionPlus.com. The Shower Pan Membrane Liner EBook will quickly teach you the step-by-step process for installing the shower pan membrane liner correctly. It includes instructions on framing the shower stall, pouring the pre-slope and shower base mortar, and installing the shower pan membrane liner.

Use of Leveling Compounds when Installing Ceramic Floor Tile

Leveling compounds are ideal for smoothing out a subfloor surface prior to installing ceramic floor tiles. To ensure your ceramic floor tiles will not crack over time, it is critical that they be installed on a rigid and level subfloor.

Leveling compounds are cement based and are easy to apply. They will adhere well to both concrete and wood surfaces.

When preparing a floor for the installation of ceramic floor tile, additional material is typically installed over the home’s existing base subfloor. The existing subfloor is normally constructed out of concrete, 3/4th inch OSB, or plywood. Concrete, backerboard, or exterior plywood is normally added to the subfloor to increase the rigidity of the floor surface. The more level and rigid the floor, the less likelihood of the ceramic tiles cracking.

To ensure that the floor surface is level and rigid, a leveling compound may be needed, The leveling compound can be added to the floor to adjust for any dips or humps in the subfloor. Dips and humps can occur due to imperfections in the concrete slab or floor joists, or from warping in the base subfloor.

The subfloor should be clean and dust free, prior to applying a leveling compound to your subfloor. If it is not, you may get a poor bond between the leveling compound and the subfloor.

To apply leveling compounds, you can use a trowel, broad knife, and/or a length of 2″x4″.

Use the length of 2″x”4, to see how much leveling compound you will need, by running it over the surface of the subfloor to see how much of a dip or hump you have to deal with.

Note that leveling compounds set up quickly. Consequently, it is best to make up small batches at a time.