Installation Guide

Copyright © 2021. Tile Redi Sales, LLC. All Rights Reserved 2 Rev. 20210518
11. Spread your mortar base (should be a milk shake consistency), EVENLY ACROSS THE SUBFLOOR AT THE THICKNESS
CALCULATED FROM STEP 6a, 6b, or 6c, and offset 1“ from each outside edge of the pan with exception of the curb
side. Mortar will protrude out from under the curb, run the finished side of trowel along curb face to backfill any
excess mortar.
a. If there is access from the subfloor below and you followed step 5.a. above, then brush PVC adhesive on the
outside of the cut drain pipe and quickly insert into drain connection, and then be sure the drain pipe extends far
enough below the subfloor so it can be conveniently connected to the waste water pipe following the
installation.
b. If there is no access from the subfloor below and you followed step 5.b. above then brush PVC adhesive on the
drain pipe stubbed up from the subfloor, then quickly insert the stubbed-up drain pipe properly into the shower
pan drain.
12. Place the pan in the mud base and firmly but gently shimmy the pan (applying pressure in drain location first) into
the mud so that (i) the drain is fully supported by mud at the bore hole in the substrate, and (ii) the ribs are
completely filled with the mud alternately applying hand pressure to the right and left sides of the pan floor until the
pan ribs come within 1/8” clearance of the subfloor. Level all pan sides and the let the mortar dry overnight.
Important: DO NOT STEP INTO THE SHOWER PAN ONCE THE SHOWER PAN HAS BEEN SET AND LEVELED UNTIL THE
MORTAR HAS CURED COMPLETELY
13. Install the shower backer board and water proofing in accordance with the standards established by the Tile Council
of North America, Inc.
14. Adjust the height of the drain as necessary to accommodate the flooring covering.
15. Seal and waterproof joint between backer board and the shower pan splash walls using Redi Flash® or 100% silicone,
and then cover the joint with a fluid applied waterproofing membrane on the shower walls over the joint. Allow the
mortar bed to dry in accordance with the instructions of the mortar bed manufacturer.
16. Install the backer board on the face of the bench framing resting on the splash wall flashing (per manufacturer
instructions) leaving 1 ½” of space between the top of the backer board and the top of the framing, ensure to fasten
the backer board to the wood or metal framing. After installing the backer board to the framing wipe off excess
silicone. Apply the REDI FLASH to the top of the backerboard with the long side of the flashing pointing down
toward the shower pan and fasten to the framing. Apply a bead of 100% silicone to the top of the flashing.
17. Apply Loctite PL Premium construction adhesive to all surfaces of the bench frame which are in contact with the
REDI BENCH when it is placed in the frame (i.e., the top of the frame and the vertical frame studs above the splash
wall.) Then, install the REDI BENCH by securely placing the REDI BENCH on the framing so it is in contact with all the
seat and leg support areas containing Loctite PL Premium construction adhesive. Press the REDI BENCH firmly onto
the Loctite PL Premium construction adhesive on the bench frame and hold it securely in place for approximately 30
minutes. After placing the bench frame wipe clean any excess silicone.
18. Install the REDI FLASH on the top of the 3 splash walls of the REDI BENCH in the same fashion that the REDI FLASH
was installed above the shower base splash wall.
19. Now you are ready to install the ½” backer board above the REDI BENCH splash walls and the splash walls of the
shower base.
Ensure that you waterproof the backer board per manufacturer’s instructions. Now that the REDI BENCH and the
shower base are secured and sealed in all areas you are ready to tile the shower base using Tile Redi approved modified
thin-sets shown below (Appendix A).
APPENDIX A
Tile Redi approved modified thin-sets
MAPEI Ultraflex LHT White
MAPEI Large Format Floor and Wall White
CBP Prolite White
MAPEI Ultraflex 1 White
MAPEI Porcelain Tile White
CBP Flexbond White
MAPEI Large Tile and Stone White
MAPEI Ultraflex LFT White
TEC Ultimate 6 Plus 487 White