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23. Place the Fundo Riolito extension module into the thinset bed and press firmly into resting position and ensuring full coverage
of thinset mortar between line module and subfloor leaving no voids. Ensure a tight fit is achieved between extension module
and line module along the notch connection. Ensure extension module is squared up tightly with wall framing and is coming
to rest in a level position (measure inside perimeter channel notch as surface is sloped). Apply some tile boxes/weight to keep
the thinset mortar compressed during initial drying.
24. Trowel flat all excess sealant. Another 1/2 in. bead of wedi joint sealant is applied over and along the connection seam later (to
avoid large areas with fresh sealant covered seams during the installation phase).
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25. Clean the perimeter channels from dust or any other contaminants. Set up a continuous 1/2 in. bead of wedi Joint Sealant
along the Riolito‘s channel on the outer perimeter and only in areas where you can immediately install a building panel into
the fresh sealant.
26. Push the wedi building panel fully into the channel of the shower base, being sure the bead of sealant is fully compressed.
Smooth out any pushed out sealant on inside seam using a putty knife. Fasten the panels directly to the studs starting 1 ft
above the base and in corners while keeping the board pushed down into the channel, and set the wedi fasteners with wedi
washers at a rate of 1 fastener per 1 ft. On every framing stud, one fastener has to be installed through the seam between two
adjoining building panels to create a smooth transition. wedi requires wedi building panels to be installed in all areas exposed
to water and never lower than 6 inches above any shower fixture.
27. Apply continuous 1/2 in. beads of sealant between all connections of panels and install with tightly butted seams. Excess sealant
must be spread flat with a putty knife. All seams and fastener heads in the assembly are covered with a topical 1/2 inch bead
of sealant and spread flat. The seams should be covered 1 in. on either side of a seam. All fastener / washers are covered with
sealant stretching 1 in. over the washer edges.
28. wedi Niches are installed in a cut out in the wedi wall and attached with it‘s flange right into the center of 16 in. o.c. studs.
wedi Joint Sealant is set along the connection of wall to niche.
29. Fasteners every 12 inches on either side of the niche, or a minimum of 1 fastener on each of the 4 corners, are set to create a
flat transition to wall panels. Another 1/2 in. bead of wedi Joint Sealant is spread flat over fasteners and seams.
30. For the installation to properly work it is critical to waterproof all penetrations of the wedi product such as shower valves and
shower heads using the appropriate sealing gaskets for the application. The wedi Mixing Valve Flexi Collar and wedi Flexi
Collar (for 1/2 in. – 3/4 in. shower pipe protrusions) are used for these applications, and are installed using a full bed of wedi
joint sealant for attachment. These sealing measures are required for wedi‘s waterproofing system warranty. Contact us for
alternative waterproofing options if fixtures do not fit wedi standard collars so we can recommend optional best practices
under wedi warranty.
31. A continuous 1/2 in. bead of sealant is set into the channel and along the vertical curb notch part. 1/2 in. beads of wedi joint
sealant are equally applied on wall surfaces where the curb attaches. A 1/4 in. square notch trowel is used to apply a thinset
mortar on the subfloor and on the wedi curb bottom (reference wedi Fundo installation in thinset mortar). The tightly fitting
curb is pressed into the connection area. wedi Lean Curbs can be installed by entirely using wedi joint sealant (replaces thinset
attachment to floor). Please note: wedi curb notches are pre-made for channel connections to wedi bases 1 1/2 in. thick at
perimeter. When using thicker perimeter bases, please cut the curb notch for a tight dry fit connection.
32. Weight is applied for a minimum of 30 minutes on and against the curb (from outside) and another 1/2 in. bead of sealant is
applied over all curb seams and spread flat. The seams must be covered 1 in. either side of a seam.