4. Install a Mortar Cement Bed (recommended)
NOTICE: For best results, we recommend that you install a bed of mortar cement on the subfloor. This
will not only provide solid support, but will also eliminate the potential for movement and noise when in
use.
NOTICE: Use sand mix mortar cement only. Do not use plaster, gypsum cement, drywall compound, or
mortar cement with pebbles/stones for this application. These are not suited for this application and/or
do not provide adequate structural support.
NOTE: The bath supports must rest directly on the subfloor. Constructing a level subfloor is critical for
proper installation.
Install the drain and overflow assembly to the bath according to the drain manufacturer's
instructions.
Spread a 2" (51 mm) layer of mortar cement on the subfloor, spreading it so that each area of the
bath that will contact the subfloor has mortar cement. Do not spread the mortar cement around the
drain area or where the blower will be located. Allow room for the mortar cement to expand from
the weight of the bath.
Immediately move the bath into position.
Verify that the bath is level and resting on all supports.
Clean the bath to reduce the risk of damaging the surface.
Sterling
Spread a 2" (51 mm) layer of
mortar cement.
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