I need to measure the beams and the spans, but the floor seems very stable. The Tile Council of North America (TCNA) calls for a subfloor of 19/32-inch tongue-and-groove plywood to be installed over wood joists spaced 16 inches on center, with a 1/8-inch gap between sheets. The home was built in the 1960s and the subfloor consists of 3/4" thick tongue and groove planks running diagonal to the joists. thick cement board instead of the usual 1/2-in. The tongue and groove is 3/4"x 3 3/4" and run perpendicular to the joists. While removing the old subfloor, mark the locations of the nails on the walls to help you install the new sheets. Since I’m adept at laying tile, I would buy through-bodied porcelain pavers (not glazed and not polished) and tile it with either 1/16” non-sanded grout joints (if non-gauged) or no grout at all, if it is gauged tile. The main concern is that the center of the floor is high running with the T&G from one end to … 3/4" tongue and groove over 16" floor joists is very strong. Leaks have no bearing on why they are used. Ceramic tile over OSB subfloor. The tile is adhered using a dry-set or latex-modified portland cement mortar bond coat. cement boards that some in sheets. tongue-and-groove material, screw the underlayment down right through the vinyl with 1-1/4-in. It is possible to tile directly onto tongue and groove wooden floors, but the high amounts of deflection/movement will mean that an ultra-flexible (S2) tile adhesive is required.. Alternatively, another option is to strengthen the substrate with either a layer of floor screed or by overboarding with plywood/tile backer board, and then using an improved flexible (S1) tile adhesive. Use concrete board 1/2" only on the floors. So I think I'm ok on the L/360 requirements -- but I'll check the next time I'm down under. I'm shocked with what I'm finding. Hello, I would like to do ceramic tile on this bathroom wall, someone has made the wall with 3/4" tongue and groove wood. Plywood continuous over two or more spans and face grain perpendicular to supports.Unsupported edges shall be tongue-and-groove or blocked except where nominal 1 / 4-inch-thick wood panel-type underlayment, fiber-cement underlayment or 3 / 4-inch wood finish floor is used.Fiber-cement underlayment shall comply with ASTM C1288 or ISO 8336 Category C. Allowable uniform live load at … Check with the tile companies to see which membranes they carry. I did a lot of vinyl and 1/4" would go over the 3/4 T&G to give us a clean, smooth surface to cover. Avoid having the joints on the concrete board line up with the tongue and groove. Manufactured with a 0.6mm taper on the panel edges to offset edge swell, TruFlor pointSIX consistently delivers the quality and performance builders need at a price point that represents value. DRICORE Subfloor insulates against cold concrete (R-Value of 1.4) Softens finished floors against the hard concrete; Tongue & groove design snaps into place for an easy installation; Tongue and groove design; Supports over 6,600 lbs. Many tongue and groove floors can be floated over premium underlayment with good success. If you still want to just stay with the tongue and groove and do not want to add or replace with a subfloor you might want to use a membrane. As long as the subfloor is 3/4-in. You can see the imprint of where the old bathroom vanity was. Don't quote me on that. This should be followed by a second layer of 15/32-inch-thick plywood installed with a … I've been paying attention to the electrical layout over our time in the house and i've begun the process of a rewire. Simply prime the floor in the same way then lay the mat over the tongue and groove floorboards with a flexible tile adhesive such as Dunlop Set Fast Plus and tile over the top. Installing Over Wood . Screw down well. I will do the same in the rest of the house as I renovate. drywall screws spaced every 6 in. Direct Gluing Vinyl Sheet and Tile to OSB SubfloorsInstalling a glue down vinyl floor (sheet or tile) directly over Oriented Strand Board (OSB) Subflooring has become a hot topic for me of lately. If you stand between two floor joists and you can see that there is give in the floor, lay a second sub-floor that is not tongue and groove. Laying tile over a plywood subfloor can be tricky, but if you prepare the sub floor properly, your tile floor will last for a lifetime. I am planning on gluing and screwing 3/4 plywood to the tongue and groove to eliminate squeaks and to provide an even more stable sub-floor for the tile in the bathroom. DRICORE ® Subfloor is a simple do-it-yourself solution to help you create a warm, dry, comfortable basement that is fast and easy to install. The type of OSB used for subfloors generally is made with tongue-and-groove edges (T & G). To avoid buckling, subfloor panels should be spaced with a 1/8-inch gap at all edges and ends to provide room for naturally occurring expansion. This is done by gluing the tongues and grooves together with a T&G adhesive. Tile over Concrete Subfloor. [Archive] Help with underlayment over 3/4" thick tongue and groove subfloor Tile Forum/Advice Board ... Tile don't give a rat's patooti about level, Kurt, only cares about flat. Tongue-and-groove edges on many premium floor panels, such as Weyerhaeuser’s Edge Gold ® OSB panels, are designed to self-gap. Hardwood over 1/2", I'm not sure, I think over 5/8" was what builders would do. Using green joists. If you install wood flooring directly over an uneven subfloor, your new wood floor will be uneven as well. Unlike click-lock floating floors , T&G floors are not designed to be floated . Use 1/4-in. 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