Dual Rain-Head Shower in Lafayette Square

A large walk-in shower in a Lafayette Square home, tiled with a marble-look large-format porcelain on all three walls and a coordinating small-format mosaic on the floor. The shower has dual rain heads on opposite walls, which meant the waterproofing had to address two separate shower valve penetrations through the tile assembly.

Each valve penetration was treated with a pre-formed rubber gasket and liquid membrane, lapped into the sheet membrane on the surrounding wall. This is a detail that matters — unsealed penetrations around shower valves are one of the most common sources of behind-tile moisture intrusion in older bathrooms. The glass partition was installed by a separate glazing contractor after the tile was complete; we coordinated the tile termination height and the curb profile to match the glass frame dimensions.