Although no system is mold proof, Hardibacker board delivers the ultimate in mold resistance, passing both industry mold tests with a perfect score.

Although no system is mold proof, Hardibacker board delivers the ultimate in mold resistance, passing both industry mold tests with a perfect score.

Backer-On Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs.

Utilizing a patented, innovative cement technology free of crystalline silica, BK™ provides a durable yet lightweight, stable substrate for all types of tile and stone.