![]() ![]() Most people think it’s for bonding (which it does), but really the screws are what holds it down the most.īefore laying down the thin-set you want to cut and install all the cement boards for the space. Thin-set is what will give your cement board an even, and void-free surface to lay on. 3.) Lay down thin-set mortar and cement board Also, if there are any “proud” nails or screwheads, you will want to sink them in flush. If there appears to be “teetering-tottering” over any joints, use a belt sander to sand down the ridge to make it level with the floor. ![]() Screw the floor down using 1-5/8″ screws spaced at 6 inches apart.Įxamine all the plywood seams using a straightedge by holding it perpendicularly to the seams. No additional layers of plywood are needed. 3/4″ Tongue-and-groove plywood, or OSB (oriented Strand Board).CDX plywood, by screwing it into the subfloor with 1-5/8″ screws. Take the particleboard off and attach the plywood to floor joists using 1-5/8″ screws every 6″. 1/2″ Plywood with 5/8″ particleboard underlayment. ![]() If the subfloor underneath the tile is 3/4″, you can use 1-1/4″ cement board screws to fasten it down. The typical 1/2″ cement board may raise your floors too much. If you have this for a subfloor, you will want to keep floor height in mind. Vinyl flooring glued over 1/4″ wood underlayment.Simply remove a heating register and look at the edges of the wood. If you have not figured out what kind of subfloor you have. But, once the tile goes on, it becomes challenging, if not impossible, to fix. If it does, simply screwing down the plywood to the floor joists will solve this. Before installing 1/4″ or 1/2″ cement board, make sure the floor doesn’t make any sounds. If you want the most durable and long-lasting tile floor possible, make sure your subfloor is solid. Straight edge and knife for cutting the cement boardĥ Steps to Installing the Cement Board to the Floor 1.) Fix any issues with subfloor.1/4″ notched trowel for spreading the thin-set.Cement board screws – Size will depend on the thickness of the cement board and underlayment.Thin-set – Make sure to get latex-modified mortar.Alkali-resistant fiberglass mesh tape made specifically for concrete board.It’s also GreenGuard certified for better air quality. The main feature of Permabase is the EdgeTech that allows fasteners to be installed closer to the edges. This brand doesn’t soak up thin-set as much as Hardiebacker does, giving you more time to adjust tiles if needed. ![]() Hardiebacker 1/4″ Cement Board: Lightweight and easy to cut with no mesh needed. HardieBacker 500 Cement Board: Features a smooth finish and moisture resistance Often said the preferred brand by tile contractors. Known to be more fibrous than other cement backerboards. ![]()
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