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.

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.

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