Installation Instructions for Fiberock in a Shower

Installing water-resistant backerboard before building a tile or fiberglass shower surround is essential for preventing damage to the surround caused by moisture. Although cement backerboard is commonly used as a shower substrate, Fiberock is an alternative that resists mold as well as moisture. Unlike cement board, this type of substrate is primarily made from recycled materials. Installing Fiberock backerboard in a shower is a straightforward process that requires basic carpentry tools.

Things You'll Need

• Measuring tape
• Chalk line
• Reciprocating saw
• 3-inch hot-dipped galvanized roofing nails
• Hammer

Instructions

1. Measure the dimensions of each section of the shower surround with a measuring tape.

2. Transfer the measurements of each shower surround section to Fiberock sheets. Snap a chalk line between the measurement marks. Mark the positions of the shower frame studs on the Fiberock sheets and snap a chalk line between the marks.

3. Cut the Fiberock sheets to fit the shower surround sections with a reciprocating saw.

4. Place one of the sheets against the shower surround studs. Drive 3-inch hot-dipped galvanized roofing nails through the sheet into the studs with a hammer at 4-inch intervals. Install additional Fiberock sheets in the same manner, ensuring that the sheets fit tightly together to provide optimal support for the tile or fiberglass surround.

Tips & Warnings

• Wear work goggles, a particle mask and thick gloves while cutting and installing Fiberock backerboard to minimize your risk of injuries.