N. then use, f. Mixing and application of Nitotile GP shall be as follows; 20kg of Nitotile GP shall be mixed with 4. Hi I am about to remove the ceramic floor tiles in my kitchen and replace with either 4mm. Slide the tile at right angles to the notch pattern to ensure maximum coverage on the back of the tile. With the existing tiles removed you're removing the risk of the screed failing. There is no additional water, just pour the. However, I contacted a specialist anyway, and we are looking at £400 + VAT to remove the tiles. Planning - Calculate the number of tiles - Setting out - Laying the vinyl tiles - After care. The system specified will depend on the room size and type, if fixed units are present, if a new floor base is being laid or what the existing sub floor is made of and the final floor covering. Dump or scoop the mortar onto the surface. You can then lay your new floor on top. Roll the primer onto the tile, being careful not to press too hard on the roller. Mapei prim grip is the grey primer. (with added latex powder), requiring only the addition of water. To flash the floor, the guys are using Kerabond mortar with Keralastic latex additive because it bonds so well. Product calculators. 3. Self levelling screedIn wet areas, Nitotile GP from m/s Fosroc shall be used as ceramic tile adhesive. Apply the Bonding Primer. Only really suitable for. 254 PLATINUM™, 257 Titanium or MULTIMAX™ LITE). If you have the height you could tile over the top - its not ideal. 8 Mpa). Cost effective – up to 50m² coverage per 11kg bag. Before laying ceramic tiles or natural stone onto a cement/sand screed, the screed should be covered and cured for 7 days followed by a further 14 days of continual air drying; a longer period. Hi Pete, I have the answer. com. Latex floor screed thickness varies from product to product, however as a general guideline please find the depths below: Minimum depths are usually 2-3mm, however there are some products that can go down to “featheredge”. Wall tile adhesive tips. In most rooms, the tiles are still in place, in varying conditions. Self-leveling underlayment is a great choice under any tiled floor, but it’s the absolute best choice when installing tile over an in-floor heating system. Existing Vinyl Tiles * Steel/Metal Surfaces. . Do not remove the tiles if u dont no what u doing. Applying the primer: To apply the primer, use can either use a paint brush or a paint sprayer. #1. Carolann's carpets. 5% prior to the installation of tiles. Andy O'Hara. Note: If you do stick a cork tile in the wrong spot, use a firm-blade, 3-in. June 28, 2022. Resilient floorcoverings can be installed after just 4 hours and ceramic tiles in as little as 3 hours. MoreEasy and affordable, the three-step paint process goes right over laminate, cultured marble or ceramic tile, resulting in automotive-grade durability from safe, water-based materials. ARDITEX NA can be applied on allScreeds & Mortars for tiling works. Fiona_cooks New Member. Too much extra will probably make it useless. . 1. LATAPOXY 310 Stone Adhesive is a two component, high strength epoxy adhesive, which is formulated for the spot bonding method of tile and stone installations on vertical surfaces. Poor Workmanship. 2 litres of water with a slow speed drill. If using on a floor do NOT allow the primer to form puddles. I am hoping to cover it all with a vinyl sheet. A common practice among Singaporean homeowners, overlaying tiles is the process of laying new tiles on top of existing tiles or vinyl flooring. 1. FAMILY HANDYMAN. However the tiler should apply a Primer before screeding such as. Shovel up a full load of mix and dump it on top of the mixture. Floor Tile Gray Thinset Tile Mortar (50-lb) Model # 1011236. Electric underfloor heating is compatible with a surprising number of floor coverings from carpet and wood to polished concrete. e ( DPM, insulation, flooring). Coverages provided are for estimating purposes only. Floor covering is a term to generically describe any finish material applied over a floor structure to provide a walking surface. 322. Using the diagram below, we would dry-lay tiles 1,7,8 etc and space the row out so that tiles 12 and 39 were roughly the same size. Price Addition Info. I am hoping to cover it all with a vinyl sheet. Latex Floor Screed Thickness. Liquid Screed is either a cement-based compound or anhydrite (gypsum based). Wait overnight for the grout to set. Membrane. I'm not sure how deep it needs to be yet as i need to speak to building regs. must be filled. 1-2007 (Ceramic Tiles-Part 1: Guide to the installation of ceramic tiles) gives guidance on the types of concrete surface finish applicable to various tile fixing methods. The first thing to. On this weeks episode of Sealed For Good we discuss how to waterproof over the top of existing tiles and find out the different things you should be looking. A primer is a liquid product, which can be either latex, epoxy or polyurethane based, and is used to create better adhesion onto the substrate before tiling or screeding. The colour of the second batch of screed is a lot more of a lighter grey than the first batch. 12. A) ARDITEX NA ® can be used with confidence over almost all subfloors without priming including ceramic tiles, bitumen and flooring grade plywood. However, if the tiles are damaged, it’s best to remove them before screeding. 1 to set ceramic and stone tile, including large format tiles, over the KERDI membrane. Suitable for both internal and external, thin bed applications. DIYDave. Screeding over cracked tiles can cause pressure over time on the screed and begin to break it up in the affected areas underneath. They come in thicknesses ranging from 2 millimeters (about 1/16 inch) to 8. I'm wondering if anyone can help me please? I've just bought a 70's house which has thermoplastic (Marley) tiles laid to the kitchen and utility. A latex screed is a mix of powder, and liquid latex poured over a concrete slab to provide a flat, level surface. If you are working on new. (3/4” min. Rich. Measure the gap between the floor and the raised end to check how far out the floor is. In this concrete floor video, industry expert Bob Harris shows the steps for installing a new concrete floor over an existing tile floor. 16 Aug 2013. All waxes or sealers must be removed, and patching/leveling or embossing must be brought to a flatness of 3/16” in 10’. If you use a paint sprayer, it is recommended to use a. You can paint over any blemishes or missed spots that. SR2 5mmMAPEI. In most circumstances, porcelain and ceramic tiles just need regular cleaning. Now in addition to our subfloor preparations products, we offer a full range of patching systems, moisture control, concrete toppings, flooring adhesives and concrete repair. Hence they need to screed, because dont have ppl who put 30mm of cement before laying tiles. Making sure the floor is level is vital when laying vinyl tiles. TAL BOND should be used as a total water replacement in the adhesive and grout mix. application of a screed on a floor background. Lay it over your floor and lift the low end until the bubble is central. The mortar has an open time (work-able time) of about 1 hour. Using either a specific tile primer or SBR, follow manufacturers instruction on container (SBR likely diluted 1-4 with water) paint on 2 coats over the Marley’s. Around £12 I remember but will probably be way too much quantity for your small area but Abstract. Step 1 – Fill Large Grout Lines. Paint the grout with grout paint, if desired. It’s walkable in only 3 hours, receives ceramic, or stone tiles from 4 hours, and resilient floorcoverings from just 48 hours. There are two types of screeds - Bonded and Unbonded. Each DIY makeover kit covers 35 square feet of tile or countertop, takes around four hours to complete and dries in 16 hours. SR1 3mm. See, if it were me, and fitting ply over it, I would fix a 16mm batten all the way along the low edge, fill the lot with cement mortar. Davco DW 1 is a synthetic, latex based mortar additive designed for use with portland cement and sand to prepare high strength, thin set mortars. thank you very much for the clarification. LVT is warmer underfoot than tiles anyway so you’d probably not notice the difference that it will make for heat travelling, any cold spots will probably feel warmer too. Nonetheless, as simple as this process might sound, there is a lot more to. Used for: levelling uneven subfloors, internally and externally, prior to laying ceramic tiles, thermoplastic tiles, lino, wood block flooring, or carpet. Remove the painter’s tape to reveal a straight even edge. Further information is we eventually want a hard wood or engineered wood flooring. Examine the grout lines. 9") and tape them together. BS8204 Part1. 2. 2 Step 2: Fill the holes with compound filler. They also flog a ply-backed insulation board but don't divulge how they glue it on!The Bottom Line. You just need to apply a contract grade epoxy DPM, sandwiched between 2 layers of appropriate latex. Add message. £10 - £12. I'm new to this and didn't select reply before. USE To level uneven internal subfloors to provide a smooth surface. 7 Step 7: Leave for 24 Hours: 6. Answered 15th Oct 2019 Like 0. The reason that the additive is latex, is to give the screed a degree of flexibility. Traditional sand and cement such as a 1:4 ratio could be bonded at 40mm. 4 Use a screed to level the floor; a screed is usually a long and very straight board or level that will move the excess floor leveler to lower levels and will help you level the floor. Improves water resistance. Be careful of latex compounds that say they can go over ceramics with no primer. we don't need a specialist. The matt sits on top of insulation boards (10mm), which in turn sits on top of a concrete floor). Iam a floor layer with 25 five years experience. I was charged £2,600 and although I knew this was expensive I put. either way, as the other posts say, you would be better screeding which will also take out any irregularities in the concrete. There are many advantages in placing vinyl flooring over existing flooring, such as added insulation, desired thickness and with the use of transition strips you can avoid any unnecessary disasters with the installation. Used to smooth and level floors in preparation for laying a wide range of floor coverings on top which is important as this base layer will effect the overall finish you get from the project. Working Time: 6 - 7 hrs. Like 0. Mastic is a general term for a type of glue-like adhesive. 8. com. In this video I show how to self level a floor using s. Maximum depths are around 10-15mm, however with the addition of bulking aggregates (normally kiln dried sand) some latex floor screed can go up to 30mm. Volume. Country. 2. Where the old screed has been removed by the outside back door, it has uncovered a low inner brick course running parallel to the door in line with the inner wall with a gulley either side, similar in dimensions to the one described above. Step 4 – Remove Baseboards. Answered 14th Jan 2022 Like 0. Help! 29/12/12 - Thanks for your replies. If the height is permissible, installing a screed is an option. . Step 3 – Remove Debris. #2. quarry, ceramic and most natural stone tiles* over interior or exterior concrete and masonry floor and wall surfaces. Check out our website and and contact us for more information. Please help !!! I've had a 4mm-5mm latex screed laid using mapei renovation screed as I was advised this was the best option for a final floor finish as I was only left with about 7-8mm to work with as a microcement floor I had laid had gone wrong. 85kg Latex Coverage: 5m2 at approximately 3mm thick. Use long strokes and hold the trowel at a consistent angle. Asbestos floor tiles were once a popular choice for flooring, and you will often find old asbestos floor tiles hidden under carpets. To flash the floor, the guys are using Kerabond mortar with Keralastic latex additive because it bonds so well. JC Flooring Professional Carpet Fitting Service. Primers. Ultraplan Renovation Screed 3240 is suitable where good resistance to loads is required, also for castor wheel traffic and underfloor and undertile heating systems. Important: Nothing should cover isolation joints or fill expansion joints except caulk. 75, The Home Depot. 5 litres per 20kg bag of screed. Whilst it is still poured at a shallower depth than traditional sand and cement screed, the minimum 35mm pour is. • When mixed with water, suitable for ceramic tile, quarry, pavers and saltillo tile over cementitious surfaces. Put simply, a screed is a hard coating flooring surface similar to concrete. ARDITEX NA can be applied on all common subfloors such as concreteStep 4: Mix Mortar. JC Flooring Professional Carpet Fitting Service. 4. Floor levelling compound is also known as self-levelling compound. Work the chisel between the tiles and the concrete, hammering them up with a 2-lb. Wait a few minutes. Lay down polyethylene or PVC sheets to separate the concrete from the screed layer. In Swimming Pools. The best solution would be to pull the tiles up. Fig. they will 99% of. 1. It can be applied over virtually any substrate such as old adhesive residues and ceramics. “The majority of glazed and unglazed [ceramic] tiles have negligible moisture expansion, which does not contribute to tiling problems if tiles are correctly fixed (installed). Estimated Cost: $75 to $100. LVT is warmer underfoot than tiles anyway so you’d probably not notice the difference that it will make for heat travelling, any cold spots will probably feel warmer too. The price is usually around $14-$28 SGD per square foot; Screeding cement is a simple process that can be done at home. Only really suitable for domestic loose lay vinyl. Gypsum based screeds: According to the applicable standards, the residual moisture of gypsum based screeds should not exceed 0. As the title says, looking for a good primer and screed to go over quite shiny ceramic tiles. Table 4. What's the best latex / screed to cover ceramic tiles. Step 3 – Use a priming agent. On absorbent surfaces, such as cement and sand screeds, it may be necessary to damp down the surface with water before applying ARDITEX NA , to help reduce suction and pinholes. wowfudge · 03/08/2017 14:00. maul. #6. If the layer of screed is bad and the Tile is cut improperly, it will result in cracking in the long run. Overlap sheets by at least 20 cm (7. If you’re working on a time-critical project, go for ARDEX A 38 Ultra Rapid Drying Screed. Fibreglass * Prime. the concrete or sand/cement screed should be confirmed dry by. Reply to londonchap81. Underneath the floor tiles was this black substance which I have since found out to. Flooring. Dusty, porous and uneven solid surfaces must be sealed using a thin latex screed. Can be used with underfloor heating systems. The function of a primer is to prepare the surface and increase the bond. ” Note: New Tile Installed Over Existing Tile - When new tile is needed in existing pools, new tile can be installed over existing tile using 254 Platinum or 254 Platinum Plus provided that the pool is in good condition and existing tile is well bonded. Installing a damp proof underlay for concrete floors. #2. Self-adhesive vinyl tiles can be laid perfectly on the screed and liquid screed. Over the years, BRE has investigated numerous cases where stone or ceramic tiles have been laid onto a screed only for cracks to appear in the tiles. 1. 2. Floating engineered wood is ok. 8 to 5. The average dimensionof the sampleistheaverageof40 measurements. Rapid, High Flow Self-Leveling Underlayment. TAL BOND should be used as a total water replacement in the adhesive and grout mix. Once the compound is ready, pour it onto the floor from the farthermost part of the room and work backwards. Latermix Cem Mini can also be used as. almightymat. Replace the grout in the lines using a grout float to push the grout into place. BASF, the leading latex supplier in waterproofing industry, provides comprehensive solutions for cementitious waterproofing, mastic waterproofing. laying lino/tiles over existing kitchen floor. Old fire blankets and heat resistant gloves can also be made out of asbestos textiles. insulation board) Bitumen residue* * Best practice is to remove all bitumen. Once traffic starts walking over it, those stresses start moving the tiles and eventually they pop off the floor and get. When ARDEX Americas started back in 1978, we began a tradition of innovation and excellence as we introduced the first self-leveling cement product available in the market. When laying vinyl, ceramic tiles, carpet and other floor coverings. In wet areas, Nitotile GP from m/s Fosroc shall be used as ceramic tile adhesive. New-build install: £50 to £75 per square metre. LATAPOXY 300 Adhesive is a chemical resistant, epoxy adhesive that will bond to most sound, clean surfaces. AS 4654. All that’s required is spreading the compound over the prepared tiles. Lee Allen New Member. Fast setting time - sets in two hours Overlay can commence after eight hours Application depth, 0. #1. CHOOSING A PAINT FOR TILE FLOORING. Over plastic, semi-dry consistency traditional mortar beds (min 20mm thick) before beating in pavers and ceramic or stone tile in cold climate conditions. whats the Best latex for screeding over ceramic tiles? ardex na have also used green bag and mapei latex plan make sure you prime first dazza, Jan 24, 2013 #2 dazlight Super Moderator Or use a stronger primed like mapei Eco prim grip or Ardex p4 then you use a water mix. Handyandy Screwfix Select. ARDEX FEATHER FINISH is ideal for patching and smoothing minor surface damage to levelling and smoothing compounds i. Make sure you leave the screed to go off properly before laying the new vinyl tiles, Each screed has its own reccomendations so read the pack and follow the instructions. 4- wait for approx 4 hrs for slurry coat to dry 5- self level floor with mapei renovation screed slc (my preffered choice). You can paint over any blemishes or missed spots that the painter's tape covered up, but be sure to let them dry. commences. Green Screed. uk. It is probably a low content, eg. 5 millimeters (about 3/8 inch) and. If there is a significant trench where the grout is – fill it and seal it. You need to adurapid crack, then primer and latex then. Use painter’s tape in combination with a drop cloth or plastic sheeting to protect nearby surfaces from errant paint. MAPEI recommends adding 5% to 10% in overage to ensure. Actual jobsite coverage may vary according to such factors as job conditions and application methods. Concrete has a much coarser mixture than screed, consisting of larger, hard-core aggregates, which are the key element that gives it its durability and makes it strong and long lasting. The floor is then completely sanded and vacuumed. AS 3740-2021 – Waterproofing of domestic wet areas 3. Additionally, being able to use these over wood. Screwfix Select. Essentially you use the tip of your shovel to knead the mixture. If you have a 300mm of depth, you might want to put in 225mm of insulation. 3 Comb the mortar. 3. Green screeds are usually 1:3 or 1:4 cement and sand at a usual thickness of 50mm. footprints and trowel marks. Latex screed. True feather edge allows for greater coverage. The sudden expansion or contraction results in a lack of adhesion between the tiles and the screed. With the hole closed up, you can start “folding” the mix. As well as regular upkeep, wood flooring often needs annual sanding and re-sealing to maintain its quality. The correct way to this job would be to lift all the floor tiles, lay marine plyboard down and secure it with screws. For bathroom wall tiles, it is important to take note of the material they are made from. you might just have a low spot along the old wall where the concrete meets the wooden floor. 25 quarts (5 L) water: 25 lbs. The contractor applied a layer of traditional cement-sand screed to a depth of 65mm and told me to wait 110 days for the screed to dry before calling the tiler. Yes you can latex over ceramic tiles as long as the tiles have been installed to a good standard and you have no damp plus you have to use floor primer. Make sure to install movement joints in the screed over any structural or cold joints in the balcony. If nothing comes off, it’s fine to tile over. For decades. This time I mixed more screed and poured it over the area in question. L. 5-6. USES Davco 168 is designed for installation of dimensional stone and ceramic tiles over a wide variety of sub-strates. The function of a primer is to prepare the surface and increase the bond. Only if you dont like HDB tiles and want to use your own tiles then no need for screeding. Dip the paint roller into the primer, then roll out the excess on the tray until the roller is nearly dry. Ultra Floor - Prime IT - Multi-Surface Primer (MSP) - 5 Litre. Walls: 4 mm in 2 m. Fast Setting Screeds Allow a faster setting time to achieve foot traffic within a shorter period. Tile panel movement joints should be created at maximum 3 meter centres in both directions, as well as around the perimeter of the floor. I'm looking to lay Karndean tiles on top of these tiles (not going to take them up or deal with the bitumen) and would like some advice on how to prep the old tiles. the bottom line is no,the ceramics will show through in a few days this will result in short life expectency of the flooring,a suitable latex screed is needed to level out the ceramics then you can achieve a flat surface to recieve the floorcovering. 2. NOTE: Arditex NA should not be used on top of vinyl. Funnily enough Celotex do say you can float ply over their insulation boards and tile onto it, but they seem to assume that ply comes perfectly flat and don't have any recommendations as to how to get it all nice and rigid. Sanding is a technique where you primarily use sandpaper to grind down a wooden floor. The cured screed will have a layer of anhydrite screed laitance that will need to be removed after 2-6 days (dependent on brand of screed used). screed. mortar. VAT. I would recommend screeding it because it would encapsulate the tiles but also give you a perfect surface for whatever flooring you decide on in the future. The tiles will also stick to ceramic tiles if they are untextured. Then mix a lighter, creamy batch and wash over the floor. Too much extra will probably make it useless. Then mix a lighter, creamy batch and wash over. uk. LVTs like Karndean Amtico Moduleo etc yes. 2. Country. With a floor leveling compound, the smooth subsurface is easy to create. pnfl. Latex levelling screed levels out uneven substrates leave a smooth surface to bond to. All depends how big is your kitchen. Screw the sheets to the subfloor, using rust-resistant screws and spacing them 6 inches apart. Latex floor. Arditex NA can also be used to encapsulate under-tile heating cables/mats onto concrete/screed/tile backing boards, prior to fixing ceramic floor tiles. However, the Quikrete High-Performance. I asked a contractor who happened to be in my company and he say the same thing too. flooring bloke New Member. Remove the painter’s tape to reveal a straight even edge. Be careful of latex compounds that say they can go over ceramics with no primer. Renovation property: £135 to £185 per square metre. The Latermix Cem range of concretes can be used for base screeds that are strong and very lightweight (450 – 600 kg/m 3) and contribute significantly to the thermal insulation of the slab. Secondly, screed over it with a self leveling compound, and let that dry. The advantage of latex screed is that it can be laid to a thin 3-40mm depth and sharp sand can be added for increased thickness. Glazed tiles usually require a light sanding to "rough up" the surface. Scraping the screed over the newly applied self-leveling latex compound will help to spread it evenly over the floor, ensuring it fills up every dip. You would question why you would want to go that deep with screed, and not use a void former. New Vinyl Plank Flooring (Over Tile!) Now that I FINALLY have some decent current pics of the house since we moved in, I can share all about the luxury vinyl plank flooring we had put in right after we. 4 Use a screed to level the. 4-6mm would be fine. Not actually used it myself (yet) but looking to level my garage floor so done a little research. 5:25 AM. Cleaning the debris: Soak a cloth in clear water and wipe any dust or debris off the plywood surface. 2-m straightedge laid in contact with the screed. Start at a broken tile or between tiles where the grout has loosened. Post reply. nThis floor screed is a versatile smoothing compound for levelling uneven floors before laying decorative floor coverings. 50 per square metre. Mix 1 part water to 1 part Prime & Bind. For Indoor Use. Having a skilled mason is a. Mapei prim grip is the grey primer. Use a 3/4- or 1-in. As long as the old floor is in good condition and can allow the new mortar to stick properly, it should not be a problem. USES Davco DW 1 may be used as a mortar additive for fixing. 2.