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wedi Fundo

Ligno Base and wedi Fundo

Shower Kit - Ligno Installation Manual

1. Recess the existing 3/4 in. plywood subfloor between floor joists in the shower base area. This can be done by installing 2 x

6 blocking along floor joists to support the plywood floor between and flush with floor joists. Optionally, this recess can be

created safely and fast with the help of the wedi Fundo Ligno Recess Installation Kit. This kit works well with conventional and

engineered floor joists and especially where an installation is in tight spaces. Make a 6 1/2 inch cut out in the recessed wood

subfloor centered around the floor waste pipe. There should be no obstruction or part of a floor joist in the area of the cut

out. Ensure recessed floor is even and level, flat, and sufficiently loadbearing, and made from solid pieces. Using an inside pipe

cutter next, evenly cut off the floor waste pipe 5/8 in. below the surface of the recessed subfloor.

2. Cut the Fundo Ligno base to fit between framed walls and recessed floor transition and so its Fundo Click and Seal™ drain unit

can connect with the waste pipe. Consider also space possibly needed by a presloped Ligno extension panel. Consider that

cutting and extending the base may change the slope design. Cutting should be limited to 4 inches off a single side of

the base so it will not become too thin to re-create a perimeter channel for a safe connection to wedi wall panels.

Adding wedi pre-sloped extensions can increase the shower base‘s perimeter thickness at one or more sides. Cutting the

shower base to size can reduce it‘s perimeter thickness at one or more sides. Increase or reduction in shower base perimeter

thickness should be planned for so a smooth transition to the bathroom floor products or surface is ensured.

3. Once the base is cut to size, you want to dry fit the base and remake the perimeter channels on all sides which will connect

to wedi wall panels. The perimeter channel must be 1/2 inch wide and between 1/2 inch and at minimum 3/8 inch deep. The

minimum thickness of the horizontal part of the perimeter channel bottom must not be less than 1/4 inch.

4. Next, install the Fundo Click and Seal™ drain unit. Drain components are delivered inserted inside the Drain Body. Please take

the parts out and use step by step following our manual here.

5. Apply the wedi provided safe Lubricant to the black rubber ring inside the wedi Drain Body.

6. Insert the Drain Body snugly into the receiving mechanism of the Drain Unit on the underside of the Fundo base.

7. Once inserted, turn the Drain Body clockwise until its plastic flap clicks in position in its final resting position. This will require no

more than a quarter turn. Ensure a tight connection by pushing and pulling on the Drain Body and verifying a flat seat relative

to the shower base surface. If you ever want to remove the Drain Body from a locked position, use a flat head screwdriver to

push the snap mechanism’s plastic flap inwards while unscrewing the Drain Body counter-clockwise (LEFT) at the same time.

In case it is difficult to hear the click mechanism, you can also verify a safe connection as described under point 8.

8. On the top side of the drain you can verify the drain unit has successfully connected when the single hash marks are centered

between the double hash marks.

9. Clean the subfloor with a moist sponge to remove dust and dirt, and apply a skimcoat of a suitable, modified tile adhesive/

thinset (ANSI 118.4 or better), and comb through with a 1/4 in. × 1/4 in. notched trowel. Notches should be applied uniformly

and point towards the shortest side of the base area. You can also use a 1/2 in. square notch trowel, instead.

10. Trowel the thinset on the rear side of the Fundo again using a 1/4 in. × 1/4 in. notched trowel. Flat trowel the thinset over the