Installing Wonderboard On Wood Floor

Wonderboard lite must not be used as a structural load bearing member.

Installing wonderboard on wood floor.

Fasten the panels onto the studs using the same 1 8th inch spacing as a floor installation. The recommended procedure for installing fiber cement board such as wonderboard on the floor calls for first spreading a layer or mortar. Have the necessary tools for this diy project lined up before you start you ll save time and frustration. Everything looks great however all of the seams are slightly raised due to taping.

Ridge the mortar with the notched side of the trowel. Spread the mortar with a notched trowel and lay the backer board while the mortar is still wet. Or you can apply redgard waterproofing and crack prevention liquid to the face of the wonderboard. Thin set dries slowly allowing you to fix and readjust backerboard sheets as needed.

Floor or countertop installation. When installing wonderboard lite in wet areas such as showers nail or staple 15 pound roofing felt or 4 mil polyethylene sheeting the to the studs first. With the plywood in place install the backer board as you normally would. 1 4 or 7 16 wonderboard lite floors countertops score then snap wonderboard lite 5 8 subfloor with 16 on center framing adhere to subfloor stagger surface and panel joints installation over existing vinyl floor fasten to studs tape gaps not for use over concrete gypsum substrates.

If it is plywood you can install 1 4 backerboard over it with thinset beneath then ditra or just install 1 2 backerboard. I put down 7 16 wonderboard lite per manufacturer s direction which included thin set in the joints with mesh tape embedded. Required tools for this project. Backer board installation when tiling bathroom floor.

With the smooth side of a 1 4 inch notched trowel spread enough mortar for one sheet. I am redoing a bathroom and installing cement board for the first time. To avoid building up the floor too high you can use 1 4 in thick backer board instead of 1 2 in.