How to
install a Ceramic Tile Shower Pan Membrane
by Frederick
M. Hueston, www.stoneforensics.com
Building a Custom Ceramic Tile Shower starts
with a Shower Pan Membrane Liner
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.