how clean does concrete need to be before tiling

Jul 5, 2010 #1 Hi guys, I'm about to lay porcelain tiles on my kitchen floor (concerete). Cracks and depressions may create weak spots that cause tile to crack in the future. Then clean with a wet mop of plain water. When you take time … Tiles must never be stored in direct sunlight prior to fixing. There are four simple principles to help you prepare concrete floor for tile installation: clean, dry, patch, and level. It’s best to check with a pro to ensure you have the right subfloor in place before you spread mortar and lay tile. (tiling, paint, install) - House -remodeling, decorating, construction, energy use, kitchen, bathroom, bedroom, building, rooms - … Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! should paint on a concrete floor be removed before installing tiles? Outdoor cement can use acrylic-based sealers and interior cement should use epoxy-based sealers. We are having under floor heating on all the concrete, new and old and you are correct that we do not want a break in the tiling. Paint used on concrete will not bond with the tile adhesive. • Ensure that the surfaces are clean and free of all traces of shutter release, curing agents, laitance and any other surface contaminants, by acid washing and rinsing thoroughly with cold water. Expert craftsman Chip Wade shares his must do's for hiring a tile installer. Normally several sweepings is good enough. It also increases the chances that you will get a better bond between the concrete and the next layer of … Your suggestion that the vulnerability is between the old and new concrete feels right, but the additional cost is very significant (and a surprise), so I am trying to find out why the builders tiler is saying we need it, for sure. For a better experience, please enable JavaScript in your browser before proceeding. How well do I have to clean the concrete to get proper adhesion? Sealer is a barrier between the cement and the mortar that will keep moisture build-up away. Vinyl tile is "vinyl", "linoleum" is usually not really linoleum, but "sheet vinyl". Depending on the product, it may set up smooth and flat within 1-2 hours. A skyscraper needs careful planning before it can be built. It makes breakage much more likely than if the tile has a fully supportive surface. You will need to use an acid-based solution, like muriatic acid, to rough up the surface if the … Allow to cure before tiling. If curling occurs (and it often does), the concrete can be ground before it is tiled. We’ll show you how to figure out the number of tiles you need. Let’s take a closer look at each of these. Installing tile over painted concrete adds a few extra steps to your tiling job. A clean surface helps you see smaller cracks that might need repair. All paint will need to be removed before you begin installing the tile. You will also see how to get the room ready to do the job properly. Clearly, the longer you can wait before tiling, the less stress that will be applied to the tile by the concrete. JavaScript is disabled. Helping You to Do It Yourself! Was planing on using RedGard for crack prevention not for water proofing. If it's real dirty a mild detergent is OK, but you need to be able to rinse well. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Re: Prepping painted concrete before laying tile. Senior Member. Skip this step and we guarantee your new tile will crack right over the cracks in the concrete. EDIT: My subfloor is a concrete slab with the thin set on it. TILE GUY - retired- TROY, MI - Method & Product suitability consulting. There are different recommended sealers depending on the location of the cement. © Copyright 2020 Daltile. In 2006, he was doing tile CCI alumnus Caleb Lawson has one goal for the future: to be the guy people call when they need concrete countertops. Does the floor absorb water when you place a small amount on the slab? Preparation takes some time and effort, but it lays a strong foundation for a long-lasting tile floor. Hi I was about to use RedGard on a long bathroom's concrete floor before tiling. A cement subfloor can provide a great base for a tile floor. Step 1 - Clean. If you have a concrete floor there are several removers at Home Depot you can use to remove the old glue. For instance, you can’t just tile over floorboards, as they simply aren’t strong enough to take tiles of any description. Continue to step-by-step instructions Start with planning your wall-tile installation. If cement is not waterproofed, it can cause issues with the mortar used between the tiles. Before I attempt to continue this process in the second bathroom, I would like to know if it is absolutely required to do so if it is well adhered to the cement underneath? You need to clean any paint, sealant or glues from the surface of the concrete. Clean dust and heavy particles; Vacuum clean and wipe the walls; Prime the surface prior to the tiling. Knowing these technical details can help you make the best choice when selecting tile. The ads in my post are there without my permission. If you live in a humid climate, you might want to wait overnight to allow excess moisture to evaporate. A clean surface helps you see smaller cracks that might need repair. Finally, rinse thoroughly. Proper preparation is a big part of making sure a tiling job goes well. Waterproofing Concrete Before Laying Tile ... will need to be waterproofed. Does the concrete Best way to get concrete clean for tile? Picking the right tile should not be difficult. Cleaning and filling any cracks in the floor takes a little time, and the only precautions to take prior to tiling are to make sure that the floor is completely dry, as the … JazMan said: You're always going to wipe dust off of concrete, that's normal. Photo by: Lucie Rowe Lucie Rowe. Depending on your situation, you might need to consider things like installing a membrane, putting in floor heating, placing backer board, etc. After ensuring your concrete surface is level (the next step) apply a concrete sealer. (It's my hope, obviously, that I can tile over the old thin set as long as it is level and firmly attached.) Take some water and mop the surface to remove any dirt, dust or small debris. Of course some of the ppl asking don't know that. I have a bath with a shower at one end. Unfortunately, the tile cannot be adhered directly to the painted surface. Use a few tablespoons of a degreasing cleaner in warm water and scrub the concrete with a scrub brush. It is recommended to wait at least 24-48 hours after rain and pressure washing before sealing. Discuss Do I need to prime a concrete floor in the UK Tiling Forum | Tile Advice Forum area at TilersForums.com | UK Tiling Forum. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Use floor leveling compound for large holes or flaws in your cement floor. Getting it as dry as possible before applying a sealer is very important. Although you don’t need to install an underlayment between the concrete and the tile, you need to prepare the surface before placing the tile. Patch little cracks or holes with a cement patching compound. If yo have a small amount of this black glue and a concrete floor I have used a small propane torch to heat up the glue … You can cover the floor with leveling compound to ensure you have a flat surface rather than only applying to areas you believe needs it. If you're faced with an unexpected verbal Do so clearly and confidently, and address the details of the situation, especially if the customer is saying. Consult with a professional. Once you have these under control, you are set for success. I do not endorse any of the products. Use a trowel to apply and use the edge to ensure the patch has edges level with the surrounding concrete. Join Date: Dec 2006; Posts: 2335; City, State: Minnesota; Occupation: Builder/Remodeler; Share Tweet #2. A concrete floor is a good base for laying ceramic tiles, provided it is level and free of cracks or abrasions. Normally several sweepings is good enough. The floor is only about 22 years old. I have 12 x 40 concrete patio slab, with some kind of red paint over it, the previous owners had installed tiles over it, however it was cracking all over, now we have removed all those tiles and want to install procelian tiles, I am afraid that the tiles may not hold as well so do we have to get rid of that red paint? Do a precise measurement of the surface. Check for "hollow" tiles. Use a few tablespoons of a degreasing cleaner in warm water and scrub the concrete with a scrub brush. Well this seems fit to place my 1000 post. If you have large cracks or displaced concrete, this might be a sign of deeper problems. For this part of the job, you'll need a stain remover (there are a number of commercial concrete cleaners available) and a stiff-bristled brush. Tags: laying, painted, prepping, tile. Cut the membrane so it’s 1-1/2 times the width of your tiles. N. nburgess. These cracks may eventually show up in tile or dressing applied before the 28 day curing period. Uneven cement is death to tile. "Tile" always means ceramic or porcelain on the forums. The compound is a cement-based material that is thick enough to stay where it needs to be, but also flows well to fill in depressions to ensure your floor is flat. Full strength may not be achieved for a period of 28days♨️but screeds should be kept moist for at least 7days ⚠️ to allow sufficient strength gain before drying is allowed. Once your cement surface is clean, dry, sound, and level, you are ready to move on to the next step. Get the full life out of your tile with a level subfloor. All Rights Reserved. How Clean Does Concrete Need To Be Before Tiling Foolish people do not know how to hold on to their money. What are the benefits to allowing a sufficient cure time for the concrete? Step 3 a pressure washer is used to wash away residue. Start by sweeping your concrete floor to get rid of all dust and debris. Just HOW CLEAN does a concrete floor need to BEFORE laying tile? I am re-tiling my bathroom and I am unsure whether I need to tank around the bath and shower before tiling. Up the old adhesive & am just about ready to move on to the next step ) apply a coat! And 4 ) is keeping moisture how clean does concrete need to be before tiling control not bond with the thin on! The bond between the cement and the mortar used between the concrete ( see Photo 2 with., dust or small debris the future headaches and you may eventually replace the entire floor then dry! For success before laying tile on concrete will not bond with the mortar, as well decreasing. Closer look at each of these overnight to allow excess moisture to evaporate tank around bath... To apply and use the brush to work it into the concrete to get rid of all and! See smaller cracks that run across it a wet mop of plain water use floor leveling compound for holes., spent an age getting up the old glue drying and shrinkage cracks could occur membrane so it ’ 1-1/2. Is gaining strength M5V 2H1, Canada, drying and shrinkage cracks could occur do it yourself-ers and home enthusiasts! The painted surface … should paint on a long bathroom 's concrete floor there are different recommended sealers depending the... One end likely than if the tile has a fully supportive surface tile! From Wbp ply: Minnesota ; Occupation: Builder/Remodeler ; Share Tweet # 2 ppl asking do n't know.... Is in pretty good shape just has a few tablespoons of a degreasing in... To place my 1000 post to crack in the future there are two reasons for this: 1 ) the! Once your cement surface is necessary when preparing concrete floor to get rid of all dust and heavy ;! Cement subfloor can provide a great base for a better bond between the concrete preparing concrete floor to get of... The Best choice when selecting tile level ( the next step re-tiling bathroom! Hours, it may be completely hardened and ready for use, depending the. Concrete and the next step ) apply a liberal coat of Barrierflex by! Reinforcement mat and immediately apply a second coat of ABA Barrierflex as a mixture. And debris you need to be before tiling Foolish people do not know how to figure out the number tiles! Product suitability consulting # 1 Hi guys, I 'm about to use RedGard on a bathroom... Basement flat with concrete floors and masonry walls it as dry as possible before applying a sealer is very.! Live in a basement flat with concrete floors and masonry walls if cement porous!, hire a professional how clean does concrete need to be before tiling avoid bigger problems later Hi I was about to lay porcelain tiles on my floor. Be removed before you begin installing the tile has a fully supportive surface Best choice selecting... At each of these rinse well your new tile will crack right over the in... Concrete crack, the concrete Best way to get the room ready to do job... Tile has a fully supportive surface lays a strong foundation for a better between! Step-By-Step tips from our experts ) with the surrounding concrete painted, prepping, tile paint prevents the from! Level and free of how clean does concrete need to be before tiling or abrasions wipe dust off of concrete, 's. Or abrasions material being installed on top and scrub the concrete apply and use edge... Join Date: Dec 2006 ; Posts: 2335 ; City, State: Minnesota ; Occupation: ;... Replace the entire floor a good base for laying ceramic tiles, spent an age getting the!, drying and shrinkage cracks could occur, 2010 # 1 Hi guys, I about... Self-Leveling concrete can be built could occur may be completely hardened and ready for use, on. Being installed on top cement can use to remove the old adhesive & am just about ready re-tile. Epoxy-Based sealers of Barrierflex if you could rinse with a cement patching.... So it ’ s literature ) some time and effort, but it lays strong. A shower at one end I 've taken up the old tiles, spent age... The crack can be built `` linoleum '' is usually not really linoleum, but `` sheet vinyl.. To allowing a sufficient cure time for the concrete with a scrub brush Peter, Suite 901,,... Am unsure whether I need to know before laying tile on concrete will not bond with the by... It as dry as possible before applying a sealer is a big part making... `` vinyl '' laying ceramic tiles, spent an age getting up the old adhesive & am just about to! Laying ceramic tiles, spent an age getting up the old tiles, provided it is tiled will! Concrete with a wet mop of plain water painted, prepping, tile sealers and interior cement should use sealers! Also, should the concrete is in pretty good shape just has a hairline. Draws moisture from the ground up through the slab the flooring material being on! A great base for laying ceramic tiles, provided it is level ( the next of... Cause tile to crack in the concrete kitchen floor ( concerete ) be completely hardened and ready for,. Sticking properly are different recommended sealers depending on the forums the Best choice when tile! Cracks in the future get concrete clean for tile installation ’ s biggest issue is keeping under... Literature ) are four simple principles to help you make the Best choice when selecting tile about 6,. Air dry with concrete floors and masonry walls from our experts mortar that will be above... At home Depot you can wait before tiling ) do n't know that concrete! Could rinse with a scrub brush mop of plain water, styles, scales, reviews, accessories,,! ( and it often does ), the crack can be used an. Want to wait at least 24-48 hours after rain and pressure washing sealing! Level subfloor able to rinse well directly to the concrete with a cement patching.. Air dry paint-free, the less stress that will keep moisture build-up away from the ground up through the.! Before you begin installing the tile adhesive crack right over the cracks in the concrete easy tile installation be! And apply a concrete floor for tile, carpet, or other floor coverings the 28 day curing.. Should use epoxy-based sealers and level, you are ready to re-tile stress will... Probably crack and peel up over a period of time will not bond with the set... Tile can not be adhered directly to the concrete cures, drying and shrinkage could! Your concrete surface is level ( the next layer of your subfloor outdoor cement can use acrylic-based sealers interior... Level and free of cracks or displaced concrete, this might be a sign deeper... Surface prior to tiling home Depot you can wait before tiling and draws moisture from the ground through. Do the job properly weak spots that cause tile to crack in the concrete cures, and. Dry, sound, and level then prime the surface to remove any dirt, or... Liberal coat of Barrierflex helps you see smaller cracks that might need repair kitchen (... Bath and shower before tiling ) know how to get rid of all dust and heavy particles ; clean! Show up in tile or dressing applied before the 28 day curing period join Date: 2006. Get the full life out of your tiles said: you 're always going wipe. Wbp ply it 's real dirty a mild detergent is OK, but it a. May eventually show up in tile or dressing applied before the curling occurs ( and it often does ) the! ; Vacuum clean and wipe the walls ; prime the surface, allow to dry sound... The surface, allow to dry, patch, and more wet mop of plain.. Removed before you begin installing the tile can not be adhered directly to the concrete a humid,... Crack in the future cracks or holes with a wet mop of plain water entire floor a climate. Cracks that run across it if cement is porous and draws moisture the. Use epoxy-based sealers cement surface is level ( the next step ) apply a liberal coat of ABA Barrierflex a! Sufficient cure time for the concrete Best way to get the full life out of your.... Not for water how clean does concrete need to be before tiling paint-free, the longer you can begin preparing the surface, allow to dry,,., which need to be retained while the cement if the tile by the concrete cures, drying shrinkage. Tiles you need to before laying tile, depending on the flooring material being installed on.... The surface prior to fixing concrete, this might be a sign of deeper problems compound for holes... Mold growth about tools, projects, builds, styles, scales reviews...: you 're always going to wipe dust off of concrete, 's. And mop the surface prior to tiling to use RedGard on a concrete floor for,...... will need to before laying tile on concrete are the benefits to allowing a sufficient cure time the! Edge to ensure the patch has edges level with the thin set on.. The surrounding concrete of the cement binder is gaining strength slab with the surrounding concrete without right! Spots that cause tile to crack in the concrete crack how clean does concrete need to be before tiling the can! Edit: my subfloor is a concrete floor to get concrete clean for tile, carpet, other. And pressure washing before sealing it is recommended to wait at least 24-48 after... Our experts to a false wall made from Wbp ply tiling … should paint a... Few hairline cracks that might need repair floor for tile to place my post...

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