How to install ceramic tile flooring Part 6 - Mixing and Applying Mortar Adhesive
Your plans to install ceramic tile flooring have produced a floor plan which
you will use as a
guide. The space has been fully prepared � baseboards and other accessories
have been
removed. Doors have been trimmed where necessary to accommodate ceramic tile.
The
substrate has been cleaned and has generally been checked for stability and
evenness. You�ve
gathered the proper equipment, and have allowed your choice of ceramic tiles to
acclimate in
the area where they are to be installed. The space itself has been measured,
and divided into
quadrants after the centre of the space has been verified. The ceramic tiles
have been laid down
in a dry-run, or "rehearsal" in order to make sure that your tiles will fit
together in accordance
with your floor plan. At this point, you are ready to prepare for a permanent
installation. But,
first you must mix and spread the mortar adhesive. Here are the basic steps.
-
Pick up all the ceramic tiles in your batch and set them aside in bunches
reserved and
marked for the different quadrants of the space.
-
You will need mortar adhesive to set ceramic tiles. Mix the mortar in a large
bucket
by adding the dry mortar in water and stir it to a consistency of thick paste.
You can
also rent a power mixer for this process.
-
Once the mortar is mixed and ready, begin spreading it with the notched trowel
on
your prepared surface. Start from the center point, working only in one
quadrant, and
apply small sections at a time, following the same pattern you laid out in the
dry run.
-
Spread the adhesive evenly. Work in small areas at a time, using the surface
area that
you can cover when using the trowel while in arms length as a guide. Use the
notched
trowel in such a way that the rows left in the mortar are in a straight line.
Some varieties of adhesives require added water, while others don�t. Please
read all directions
carefully. Often latex or acrylic is added to mortar adhesive for extra
durability. The latex gives
the mortar flexibility and additional bonding strength. This flexibility is
required for substrates
that may experience expansion and contraction due to environmental conditions.
The additional
adhesion strength is needed while setting tile over hard-to-bond surfaces.
However, not all latex
and acrylic additives are designed to do the same job. For example, some are
not recommended
over plywood. If in doubt, always consult your seller to make sure that your
chosen mortar is
suitable for your specific installation.