USG Tile & Flooring Solutions USG DUROCK™ BRAND SHOWER SYSTEM Shower Installation Guide
SHOWER INSTALLATION USG Durock™ Brand UltraLight Foam Tile Backerboard USG Durock™ Brand Mixing Valve Seal and Pipe Seal USG Durock™ Brand Waterproofing Membrane Band USG Durock™ Brand Sealant USG Durock™ Brand Shower System Niche USG Durock™ Brand Shower System Drain Assembly USG Durock™ Brand Preformed Inside and Outside Corners USG Durock™ Brand Waterproofing Membrane USG Durock™ Brand Shower System Tray USG Durock™ Brand Shower System Bench USG Durock™ Brand Shower System Curb 2
DRAIN ASSEMBLY AND GRATE ASSEMBLY USG Durock™ Brand Shower System: Grate Puller Grate Construction Plug Grate Tray Grate Tray Riser Horizontal Adjustment Ring Drain Body with Integrated Bonding Flange Shower Tray Disk O-Ring PVC or ABS Bushing with 2 in. (51 mm) Coupling Socket WHAT YOU’LL NEED • Tile-setting mortar meeting ANSI A118.1, A118.4, A118.11 or A118.15 • 3/16 in. x 3/16 in. (5 mm x 5 mm) v-notched trowel or 1/8 in. x 1/8 in. (3 mm x 3 mm) square or u-notched trowel • 1/4 in. x 3/8 in.
SHOWER WALLS (TRADITIONAL BACKERBOARD) STEP 1 Use only code-approved wall substrate suitable for wet areas, such as USG Durock® Brand Cement Board or USG Fiberock® Tile Backerboard with a waterproofing membrane. Refer to usg.com for backerboard installation instructions. STEP 2 Apply tile-setting mortar to wall substrate using a 3/16 in. x 3/16 in. (5 mm x 5 mm) v-notched trowel or 1/8 in. x 1/8 in. (3 mm x 3 mm) square or u-notched trowel.
SHOWER WALLS (ALREADY WATERPROOF BACKERBOARD) STEP 1 If using an already waterproof backerboard, such as USG Durock™ Brand UltraLight Foam Tile Backerboard, or a coated glass-mat tile backerboard approved for wet areas, refer to usg.com for backerboard installation instructions. Note: If using a coated glass-mat tile backerboard approved for wet areas, treat joints and fastener penetrations with ANSI A118.10 waterproofing membrane.
MIXING VALVE SEAL & PIPE SEAL STEP 1 Apply tile-setting mortar to the substrate using a 3/16 in. x 3/16 in. (5 mm x 5 mm) v-notched trowel or 1/8 in. x 1/8 in. (3 mm x 3 mm) square or u-notched trowel. STEP 2 Place seal into mixing valve opening and embed into the mortar using a finishing trowel, drywall taping knife, or similar tool to remove air pockets and to ensure proper adhesion.
SHOWER TRAY, DRAIN ASSEMBLY & CURB STEP 1 Place shower tray disk on subfloor at desired drain location. Using the removable subfloor cutout template on the shower tray disk, trace the hole location on the subfloor before cutting. Note: Alignment of drain grate to tile layout must be established before cutting the hole in the level subfloor.
SHOWER TRAY, DRAIN ASSEMBLY & CURB STEP 4 Remove integrated cutout template (used for drain hole cutout in subfloor) from shower tray disk prior to installation. STEP 5 Install shower tray disk by fully embedding in the tile-setting mortar and position to match drain hole orientation using the clock marks on the shower tray. STEP 6 Apply tile-setting mortar to pre-sloped shower tray and wall junction using a 3/16 in. x 3/16 in. (5 mm x 5 mm) v-notched trowel or 1/8 in. x 1/8 in.
SHOWER TRAY, DRAIN ASSEMBLY & CURB STEP 9 Next, install the USG Durock™ Brand Drain Assembly into the shower tray disk, pressing firmly to ensure proper alignment and full support of the bonding flange. Once in place apply tile-setting mortar to the top of the bonding flange. Do not fill the recessed areas of the bonding flange with mortar until the grate assembly is ready to be installed.
SHOWER TRAY, DRAIN ASSEMBLY & CURB Step 14 Install USG Durock™ Shower System Preformed Inside and Outside Corners to seal curb/wall/tray junctions using tile-setting mortar and a 3/16 in. x 3/16 in. (5 mm x 5 mm) v-notched trowel or 1/8 in. x 1/8 in. (3 mm x 3 mm) square or u-notched trowel. Embed preformed corners in the mortar using a drywall taping knife or margin trowel to ensure proper adhesion to shower curb(s), shower tray and walls.
GRATE ASSEMBLY STEP 1 The USG Durock™ Shower System Grate Assembly is installed at the same time as the floor tile. Tip: Remove the construction plug from the grate tray by pushing up from the inside, then apply a light coating of petroleum jelly to the plug’s edges to keep grout from bonding to the plug’s perimeter (this is especially important when using urethane or epoxy grout which bonds more aggressively).
PRODUCT INFORMATION See usg.com for the most up-to-date product information. Product safety information: 800 507.8899 or usg.com. KEEP OUT OF REACH OF CHILDREN. SAFETY FIRST! Follow good safety/industrial hygiene practices during installation. Wear appropriate personal protective equipment. Read SDS and literature before specification and installation. WARRANTY See USG literature CB653 CUSTOMER SERVICE 800 621.9523 TECHNICAL SERVICE 800 USG.4YOU 800 874.4968 WEBSITE durockshowersystem.com usg.com facebook.
