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wedi Fundo Ligno
®
Installation
Before Installation:
 Have extra 2 × 4 blocking installed over bottom plate between studs
to support wedi Building Panel to shower base transition area.
 After recessing or when system is installed over regular suboor, sub-
oor is stable, even and load bearing, and meets deection criteria of
maximum L/360 and requirements as per IRC. Wooden or concrete
structural substrates are dry and sufciently load bearing considering
live and dead load. Wood and Steel framing is sufciently load bear-
ing, 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
plumbing 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.
 Ensure that no fasteners are used and penetrate through any horizontal
building panel or shower base surfaces in shower or immediate wet
rooms. This includes tub decks, pony shower wall tops, curb tops made
from building panels, seat tops. wedi panels in such areas are installed
in a full surface applied thinset mortar setting bed.
 Seams in the assembly, which are not flat transitions or right angle
inside corner connections, are treated with these extra steps:
 Assembly parts are installed tight and offer a minimum of ½ in. wide
continuous contact/ adhesion surface between two parts, inside
which wedi joint sealant is continuously applied.
 wedi joint sealant is applied over these seams topically, and 1 in.
wide on both sides of the seam.
 wedi mesh tape is installed over these seams and covered with joint
sealant 1 in. wide on both sides of the seam.
Use wedi Fundo Ligno Recess Kit to safely install and support
recessed plywood sheets between floor boards.
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