Author's Notes:. I need to measure the beams and the spans, but the floor seems very stable. However, if you can't remove the old surface or otherwise decide to install over it, lay a backer board with thin-set over the old surface to serve as your new subfloor material. The house is from 1958 and has diagonal planks over floor joists. Then DITRA over the top, and lay your tile. I need to raise the floor nearly 7" to match the height of the existing kitchen floor. We want to tile the 2nd floor bathroom floor. Tile over double wood is an acceptable method for light duty floors in a dry environment. No tile underlayment that I'm familiar with is going to allow you to go straight over 2x6's. OR, install 2x6 blocking between the floor joists for added stability. DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. Building Paper Between Layers of Flooring. I'm preparing a kitchen remodel and want to make sure that I have a strong enough subfloor for ceramic tile. Right now, I have 3/4 TG hardwood, which is not in the best shape, over a 2.5" wide x 3/4" inch think plank subfloor, which runs perpendicular to the joists (2x10, 16 oc). Span is about 60", perpendicular to the subfloor planks. Poorly applied primer Although it might be tempting to skip this step or to rush through it, primer is essential for proper adhesion between the concrete and the wood. Double check, but from what I've read there, on top of plain lumber subfloor, before tile, they want a minimum of 3/8" plywood (exterior grade with no "D" sides, ac, ab, or bc). 1/2" b/c plywood. A good Rule of thumb is to always make sure that you have at least 1" of subfloor before you tile over it, this along with an acceptable floor construction will insure a solid tile substrate. Collapse. The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. Start laying tile at a point that is across from a doorway that will be where you end up. I want to put 12" tile in the bathroom. This is the bathroom floor in an area with a tub, toilet, sink, etc. There is no subfloor as the T&G is installed directly over our hemlock floor joists. DekTek Tile's beautiful concrete deck tiles are the perfect solution! A typical wood-framed residential flooring system is more complicated than you think. Be safe when leveling floors … Is it a Type I span or Type II or II or IV? Our house is new construction, with 2x6 spruce T&G used as both the first floor ceiling and 2nd floor flooring. Plywood subfloor shall be continuous over lapped joists or over butt joints between in-line joists. As a DIY'er not sure the difference between types but my construction 4x6 beams set 48 on center with 1 1/2 x 5 T&G placed at 90 degrees. Installing Over Existing Vinyl . This means you can have a 3/4 inch wood subfloor covered by 1/2 inch plywood, cement board, or approved gypsum fiber underlayment. With all those grooves is it OK to lay down thinset and 1/2" durock? Whats people lookup in this blog: Tile Over Wood Plank Subfloor; Installing Tile Over Wood Plank Subfloor I'm remodeling a 1965 Northern California home and currently working on the bathroom. Our subfloor is 2 3/8" wide x 3/4" thick tongue and grooved hardwood nailed into the floor joists. New posts are no longer possible, but the collected work of building professionals sharing information remains available here as a resource to the JLC community. [Archive] particle board over 2x6 tongue + grv Tile Forum/Advice Board Ceramic Tile Advice Forums - John Bridge ... the optimum situation for you would be to be able to put the thinnest suitable covering over the existing 2x6 subfloor and set your tile on that, giving you a … The difficulty comes from the precise measurement and cutting required and the labor of getting the sheets of underlayment in place. Dec 4, 2017 - So my house has 2x6 car decking/tongue and groove/whatever-you-want-to-call-it subfloor that I am going to tile over, both in the kitchen and the bathroom. The kitchen has now a 3/4" plywood and two layers of vinyl flooring. Sufficient blocking shall be provided between joists to transfer lateral forces at the base of the end walls into the floor system. It’s also common to see tile installed over a concrete subfloor, and the big concern is movement from cracks, or expansion / contraction. This would be my suggestion: Use 3/8" ply, then add Schluter Ditra, then your tile. Tile installed over wood floor systems MUST have a minimum of 1-1/4 inches of solid material beneath it. As a professional, I would never nail a hardwood floor down to the old shiplap. Screw the subfloor planks into the new joists from above before the adhesive sets up. I'm tiling our bathroom floor with hexagonal mosaic ceramic tile. They've got a structural engineer over there that can help. Just motar over the plywood and lay my ceramic tile? The rest of the house has 3/4" hardwood floors. 1 of 2 < > Welcome to the JLC Forums – Read-Only Edition. If your joists are 16" on center and you can use 5/8" plywood, you may end up as little as 1/4" higher than your hardwood. Can I lay tile directly on the 3/4" plywood. Building paper is a catchall term for single-ply sheathing paper manufactured in various thicknesses. 3. Jim and Rich often flash the floor to create a flat surface, and they always recommend installing an uncoupling membrane like DITRA overtop concrete. You can then smooth it out using a hand trowel and sand the entire surface for a seamless finish. Please note that the JLC forums are now displayed read-only. Just wondering what the beam span is under that 2x6 and how the 2x6 is run over it. The … Let it sit for 24 hours. I want to put 12" tile in the bathroom. R504.1.3 Uplift and Buckling. Simply mix up the compound, pour it over the subfloor and wait for it to fill in the lowest spots. In addition to the visible surface flooring material—the carpet, tile, or hardwood—there is usually an underlayment, and beneath that is a subfloor that serves as the foundation and structural reinforcement for the floor. Mainly because your joists spacing is probably 4'. Sleeper Joist Over Existing Subfloor The porch is 2x8 joist (spanned 11') with 3/4" T&G strip (likely syp or fir). If you suspect that you’re working with an off-level foundation, you can get it ready for installation quickly by using a floor leveling compound. The subfloor is 2x4 TnG nailed to 2x6 joists 24" apart that sit on the foundation on the edges and are supported by concrete piers under the house. I have always tiled over at least this much and have not once had a popped tile or cracked grout 5+ years in. Installing the subfloor is the easy part. 1/2 inch Dur-rock over the rest of the floor, and tile flooring over that. Over time, if the screwheads rust, it could impact the bond between the concrete and the subfloor, making the new floor less durable. My house has 2x8's (or 2x6's I don't recall) diagonally on the floor joists. I have a 2x6 tongue groove subfloor over beams on posts in a 1950's ranch style home in northern California. Then, 1/2" plywood under the shower pan area, and the pan over that. April, 2002. Tile over a 2x4 TnG subfloor. With 2x6" subfloor you should use min. Spread the grout using a grout float over the tile forcing it into the grout lines. If you REALLY want to keep your height down, you can go all the way to the joists and lay new 3/4" tongue and groove sturd-i-floor throughout + DITRA. I don't recommend it though cuz of high failure rate. Tile over Concrete Subfloor. Step 7 – Grout Once dry, begin the grout installation by mixing the grout in a 5-gallon bucket, again, looking for the consistency of peanut butter. There's absolutely no problem laying a laminate floor over OSB, provided you take all the moisture-preventative steps you would take for a plywood subfloor. Installing ceramic tile over vinyl or linoleum surfaces can be more complicated than expected and probably should be avoided whenever possible. Ceramic Tile; Announcement. Uncoupling Tile has been successfully installed for thousands of years by incorporating an uncoupling layer, or forgiving shear interface, within the tile assembly. The Bathroom and dining room also have 3/4" plywood over the 2x8's. You can get by with adding a layer of 3/8" ply over your subfloor, but I think that's the thinnest you're going to be able to use. Are you looking for a way to transform your ugly wood deck? Now in this case because of post and beam, it is not recommended that tiles be used at all. From a distance, OSB flooring may look a little rough and uneven, but when you get closer and … All CBU manufacturers tell us not to install their board over any type of planks, you will need to install a plywood underlayment first. Tile should be set over a subfloor and underlayment that together are at least 1 1/8 inches thick. After tearing out the old linoleum and particle board backing I found a TnG 2x4 subfloor with joists 24" apart. Cement board (a sheet of lightweight concrete and fiberglass mesh) should be laid over top of the subfloor for any tile project. 2x6 Over A 14 Span Doityourself Com Community Forums Kitchen Bath Prepping Wood Framed Floors For Tile Jlc Online Timber Steel Framing Manual Single Span Rafter ... Tile Subfloor Deflection Thickness Common Substrates One Floor Joist Count Proper Subfloor Tiling Contractor Talk If there is any deflection in the subfloor when walked on it would be advisable to add an additional layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down over the OSB subfloor to add stability. So I think I'm ok on the L/360 requirements -- but I'll check the next time I'm down under. I want to put tile in the bathroom and dining room, and eventually kitchen. Hang 2x6 joists 16"oc between the double hung 2x6 cross beams from step 1, adding construction adhesive to the top of the 2x6's. 2. 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