The Wedi shower base has an integral drain with a rubber-flanged fitting that slides into the floor-mounted PVC trap.
The waterproof base is installed with thinset mortar and can be enlarged with interlocking base extensions.
A worker uses a plywood jig to rout channels in the Wedi floor panels.
The channels accommodate PEX radiant heating pipe.
After the PEX pipes are installed, the channels are filled with thinset.
Later, the floor is tiled with porcelain planks ripped from 12-inch-by-24-inch tiles.
The half-inch-thick Wedi wall panels are installed with special washer-headed fasteners.
To make the assembly watertight, joints are filled with Wedi's polyurethane sealant; for wet areas, the manufacturer also recommends fiberglass mesh tape bedded in thinset.