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32
wedi Fundo Riolito
®
neo Installation
Before Installation:
 Have extra 2 × 4 blocking installed over bottom plate between studs
along to support wedi Building Panel to shower base transition area.
 Suboor is stable, even and loadbearing, and meets deection criteria of
maximum L/360 and requirements as per IRC. Wooden or concrete structural
substrates are dry and sufciently loadbearing considering live and dead load.
Wood and Steel framing is sufciently loadbearing, plum and square.
 Floor drain assembly below oor is stabilized, xed and supported in
position, and will not sink under water load.
 Only wedi products (Building Panels, Curb, Joint Sealant and Fasten-
ers) are used for wedi Fundo Shower System assembly.
 Installer has received instructions from wedi Technical Sales Staff or is
informed about proper installation methods as described.
 wedi Shower Bases can be cut to size using a skilsaw. The Z notch channel
must be remade and cleaned from sawdust or other possible contamination.
 Follow applicable state or local plumbing codes requiring specic and
dimensioned waterproofed areas for a shower system or other wet
room installation. Requirements in this manual supersede local plumb-
ing codes; they extend and are not in conict. wedi Shower Systems
or other wet room installations in which non-wedi product is also used
require specic project recommendations by wedi and may reduce the
extent and installation area of protection offered by wedi’s warranty.
01 02 04
Cut the 2” (50.8 mm) pipe 1
1/4” (31.8 mm) below the top
of the Suboor. Use the oval
shape cutting template where
you want to position the drain
to cut out suboor using a jig
-
saw to allow wedi drain trap
to be inserted and connected
to oor pipe using appropriate
ABS compatible or multipurpose
cement glue. Please also check
cement glue compatibility to
oor pipe material. The drain
and trap have to be secured to
the suboor. Drain recess cut
out must not add deection to
suboor.
Assemble the drain unit
following the instruction
drawing. wedi‘s Fundo Riolito
neo bases can be cut to size on
all sides making drain positions
as close to the wall possible. Do
not cut into the linear drains
plastic ange integrated into
the coated foam part of the
base. Once cut the 1/2” × 1/2”
(12.7 × 12.7 mm) channels at
the new base perimeter must
be reestablished. When cutting
close to the drain channel al-
ways leave enough wedi foam
for re-making the needed
1/2“ × 1/2“ (12.7 × 12.7 mm)
channel.
03
Glue and seal the wedi drain trap
to the 2” (50.8 mm) pipe using
appropriate solvent cement glue
for the plastics involved. Do
not screw drain body/trap to
oor. Secure with some dabs of
wedi Joint Sealant under ange
instead. Mount the oval seal
-
ing collar / gasket to the base‘s
receiving ABS plastic channel
on it‘s underside with no gaps
showing in between both parts.
Use only the wedi screws pro
-
vided and manually tighten with
a Phillips screwdriver. Instead
of gluing the drain trap to the
oor pipe rst, you may also
connect it to the wedi Base‘s
sealing gasket rst to ensure a
visibly tight connection. The trap
will then glued to the oor pipe
later when the base is installed
to the oor.
Apply a skim coat and nally a
combed through bed of a thin
-
set using modied thinset ANSI
118.4 and 1/4” × 1/4” (6.4 ×
6.4 mm) notch trowel. There
are different ways to ensure
good bond of the wedi Base
to the suboor. Required is a
setting bed thickness of min.
3/16“
(4.8 mm) and max. of
5/16“
(7.9 mm) (compressed).
Applying thinset on both,
wedi Base and suboor, is a
best practice recommended to
achieve full surface coverage
adhesion. Another best prac
-
tice is to use fast setting mor-
tar to achieve faster bond and
adhesion.