Complete the water insulation of the wet room floor normally following the manufacturer's (ARDEX, Casco or Sika) instructions. Leave a gap of approximately 2–3 mm between the Tulppa boards and the floor. Fill the gap carefully with ARDEX CA 20 P, Casco AquaSeal or Sikaflex AT-Connection sealing compound. Smooth any surplus paste evenly onto the surface of the board using a putty knife.
Apply ARDEX 8+9 or ARDEX S 1-K waterproofing compound to all wall-floor joints, vertical corners and visible Tulppa O bracket heads. Affix ARDEX SK 12 reinforcing tape to fresh waterproofing compound so that no pockets of air remain between the tape and the adhesive. Cover the tape completely with the waterproofing compound. If there is any edge/profile damage, the profile can be fixed using the waterproofing compound and the ARDEX SK 12 reinforcing tape.
Apply the AquaStop waterproofing compound to wall-floor joints, vertical corners and any visible Tulppa O brackets so that the area treated with AquaStop is equivalent to the width of the WetStop KL sealing tape. Affix sealing tape to fresh sealing compound leaving no pockets of air beneath the tape. Finish by applying a layer of Casco AquaStop waterproofing compound on top of the WetStop so that the area treated with AquaStop extends 50 mm over the edge of the WetStop onto the Tulppa board. In wall-floor joints, the WetStop sealing tape should extend 60 mm above the floor and cover any Tulppa O brackets near the floor.
Apply the Tulppa sealing tape to the wall-floor joint. At the wall-floor joint, the tape should extend 50 mm above the floor onto the wall. It will therefore also cover any Tulppa O brackets near the floor. When using more than one strip of tape, the minimum overlap of tape sections is 30 mm. The area where the Sikalastic-201 W waterproofing compound is applied should extend onto the wall up to a height of approximately 50 mm above the edge of the sealing tape onto the Tulppa board (total width of 100 mm to meet the C2 guidelines).
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