Concrete Boards Over Floors

Alternatively screw rows of treated 1x4s to the concrete 16 in.

Concrete boards over floors. Second the strength of wood boards isn t always consistent. According to backer board manufacturers and tile setters installing backer board directly over an old solid wood subfloor is risky for a couple of reasons. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides. Concrete is usually a good subfloor on which to install ceramic tile.

Cover the sleepers with 6 millimeter plastic and then lay down 5 8 inch plywood. For the floor adhesive to properly stick the floor must be clean. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.

Cover the plywood with 15 pound roofing felt and then. The ideal way to put down a wood floor over concrete that is subject to dampness is to first put down pressure 2 by 4 inch sleepers or lengths of wood on the floor that are spaced 16 inches apart on center. 500 750 square feet of coverage. Installing cement board over a concrete subfloor.

Treated plywood to the concrete with concrete screws spaced every 16 in. Placing cement boards over the concrete subfloor is an excellent way to create a solid and smooth subfloor. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. This is a distinct advantage over plywood and drywall.

I installed a new base layer and oak floor around that area where the tile is so my tile is now 1 5 inches below the new wood floor. Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage. I was thinking about putting down cement board and new tile over the old tile to get the floor levels to be close enough that a transition threshold would work. Do it yourselfers can use either 1 2 or 1 4 inch cement board in certain applications while other scenarios mandate 1 2 inch board.

It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. Using a glue down floor is an option in above grade installation only since installation below grade requires a plastic barrier on top of the concrete. I know it seems like a smooth surface and it seems like it may fix some of the issues with the concrete floor but don t do it. However a homeowner may need to raise the floor slightly before installing tile and lack the experience or time to install a mortar bed.

Use a quality cleaner like zep professional concrete and masonry floor cleaner 27 per gallon. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring.