Yesterday, John purchased 1/2″ HardieBacker cement board for the guest bathroom walls and 1/4″ HardieBacker for the floor.
HardieBacker cement board is mold and moisture resistant and is an ideal underlayment for bathroom tile. It’s made out of 90% Portland Cement which is manufactured from limestone and clay.
John measured the length and width of the bathroom floor and then he precut the HardieBacker in three pieces.
He dry fitted the three pieces so that when he puts the tile adhesive down, the cement board will be ready to be placed on the adhesive and screwed down. Once the cement board is in place, it will have a crack resistant foundation to lay any type of ceramic or porcelain tile. In a previous post, I mentioned that we’ll be laying Daltile B&W Hexagonal Tile on the floor and Daltile Rittenhouse Subway Tile for the walls. (I have partnered with Daltile on this bathroom tile project).
John also marked the floor joists so that he would know precisely where to drill the screws after installing the HardieBacker. If you don’t mark the floor joists in advance, you’ll be drilling into 3/4″ plywood or T&G which would not be nearly as strong as drilling into the floor joists.
John cut the HardieBacker with a circular saw using a DIABLO HardieBlade purchased at Home Depot. The DIABLO blade creates less dust, faster cuts and has a longer cutting life.
Next: Applying OmniGrip Tile Adhesive & installing precut HardieBacker cement boards on the guest bathroom floor.