The subsequent application of the tile adhesive is made easier and more cost effective by removing the need to pack out dips and uneven areas with excess product. 1. It is typically composed of. Jul 30, 2012 #1. PRIMINGDescription. 3. Below the tape there will be no paint, so your ceramic tiles will now have a perfect border. A self-leveling compound is. Prime with two coats, allowing the first one to dry fully before adding the second. Fold the sheets up 10 cm (3. 2. Nonetheless, as simple as this process might sound, there is a lot more to. There is no additional water, just pour the bottle of latex in. Screed floor leveler over low areas using a 2×4. hand maul. 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. 8. If your tiles are loose, cracked, or broken, you will need to repair or replace them before applying self-levelling. 1 to set ceramic and stone tile, including large format tiles, over the KERDI membrane. Only if you dont like HDB tiles and want to use your own tiles then no need for screeding. If you use a rapid setting self leveller you should be able to tile over in a few. 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. Thank you for your advice. 7 kg. Tile panel movement joints should be created at maximum 3 meter centres in both directions, as well as around the perimeter of the floor. The thickness of the screed allows it to take up normal variations in flatness and levelness of the base on which it is laid. if floor is a concrete floor, then a latex mix would be safer due to the fact if there ever was a moisture issue then a latex mix would fair better than a water mix every. Use painter’s tape in combination with a drop cloth or plastic sheeting to protect nearby surfaces from errant paint. . Checkatrade offers the following guide: Electric underfloor heating cost. Help! 29/12/12 - Thanks for your replies. Only really suitable for. 3 from AS3958. 1-2007 – Ceramic Tiles; Part 1: Guide to the Installation of Ceramic Tiles 2. Making sure the floor is level is vital when laying vinyl tiles. Like 0. Both are correct, and have their various uses. g. Economical: Suitable for tiling on fresh screed. 4. Hi Fred. Floor tiles need to be thick to withstand years of foot traffic, the weight of furniture, and the sharp shock of dropped objects. Divide the area to be levelled into sections using wooden dividers. plaster, cement render, fibre cement sheet, plasterboard. 2 litres of water with a slow speed drill. Speed Screed. 2-2012 – Waterproofing membranes for external above-ground use – Part 2: Design and installation B. Arditex NA is a premium latex screed. screed to go off before laying the tiles, so I am guessing I should also wait the same time-frame before putting down the S. Use clean water and a mop to wipe the floor (remove the detergent residue). Pumped anhydrite floor screeds are not much dearer than ready-mix sand/cement, costing around £25/m3 (laid. BS EN 12004 C2F Adhesive. Www. 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. Screeding a floor is the simple act of applying a well blended mixture of Ordinary Portland Cement with graded agregates and water to a floor base, in order to form a sturdy sub-floor that is capable of taking on the final floor finish or act as a final wearing surface. While putting a self-leveling compound on Bitumen floors is not recommended, a few other tricks can help, like applying PVA primer or using Ardex 2-part self-leveling compound that combines latex with the concrete. Alternatively, you can also grind down the uneven concrete flooring by using other tools or sandpaper. That's the point. Make sure each area is a manageable size to avoid any issues. #2. Once broken up into sections you can more easily ensure your floor will be evenly screeded. Ceramic wall tiles are thinner for several reasons. Asbestos floor tiles were once a popular choice for flooring, and you will often find old asbestos floor tiles hidden under carpets. If using on a floor do NOT allow the primer to form puddles. It can be confusing because many leveling compounds are marked as useable on a variety of surfaces, including linoleum and vinyl. Thanks to its protein-free composition, it is also a good choice in environments where hygiene is important such as hospitals and food preparation areas. The slurry is usually just 1 mm – 2 mm thick. Peter Newman Flooring. Hi, You can lay the carpet directly over the bitumen. Latermix Cem Mini can also be used as. Use latex screed. One of the historical Mapei product lines with a complete range of versatile, reliable and innovative products for installing ceramic and stone material. TAL BOND should be used as a total water replacement in the adhesive and grout mix. ceramics I don’t know. A) ARDITEX NA ® can be used with confidence over almost all subfloors without priming including ceramic tiles, bitumen and flooring grade plywood. N. A selection of acrylic, synthetic resin and SBR primers. Overlap sheets by at least 20 cm (7. This has to be absolutely smooth for it to work, though. Vinyl planks represent perhaps the best option for installation over ceramic tile. 0. A “floating” screed is an unbonded screed applied over a layer of thermal insulating material, such as expanded polystyrene or polyurethane panels (Fig. 1. Gypsum based screeds: According to the applicable standards, the residual moisture of gypsum based screeds should not exceed 0. Latex screed. You can latex over ceramic tiles no problem as long as you use the correct primer. Start at a broken tile or between tiles where the grout has loosened. . CHOOSING A PAINT FOR TILE FLOORING. Its consistency makes it particularly suitable for fixing large tiles and those with profiled backs. When painting a tile floor, the following three types of paint work best:. ARDITEX NA can be used with confidence over almost all subfloors without priming including ceramic tiles, bitumen and flooring grade plywood. Hi, Our house was built in 1983 and we have a 7m x 3m front room/dining room and want to install Warmup electric underfloor heating with laminate. a screed should be used prior to fitting any amtico or LVT (luxury vinyl tile) flooring. Country Availability. Removal of the tiles is non-licensed work, ie. 75, The Home Depot. Screwfix customers rate this product 4. Place the mixed product onto the area to be ‘screeded’ and screed to the desired thickness and plane using an appropriate straight-edge. The level of residual humidity in a screed is measured using an electric or carbide hygrometer (Fig. 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. Primer for floor preparation prior to tiling. Answer: This will depend on the type of tiles you are going over. they will 99% of the time be a very poor strength compound. This is because the latter generally reacts to external influences, such as temperature or humidity, with stronger expansion behaviour. Only if you dont like HDB tiles and want to use your own tiles then no need for screeding. Now starts the fun part. In Swimming Pools. 4. Once the compound is ready, pour it onto the floor from the farthermost part of the room and work backwards. Asbestos was added to the mastic for its. Additionally, being able to use these over wood. My kitchen floor is part bare concrete and part quarry tile with cork tiles stuck on top. 5. As a result, it is not advisable to screed over asbestos floor tiles. Get ideas for concr. Applying the primer: To apply the primer, use can either use a paint brush or a paint sprayer. 1-2007. Good ol’ shovel work. SR1 3mm. any minor unevenness would be consumed by the underlay, getting the bitumen up is virtually i,possible and you can not lay levelling compound over it (I have done this before and it all cracked). Discussion in 'Subfloor Preparation' started by bournemouth, Oct 31, 2011. The first step in any pool tiling installation is to evaluate the substrate and ensure it is flat enough to receive the tiles. The tiles will have to be screeded over before the LVT can be laid. Left any longer, the laitance may be more difficult to remove, and it will certainly delay drying. Apply a second coat evenly (if required). The mortar has an open time (work-able time) of about 1 hour. Country. According to British Standards, any deviations should not exceed 3mm when measured under a 2m straight edge. Reply to londonchap81. Uplift existing tiles and latex screed subfloor, like another fitter said use Arditex NA that way there is no need to prime. Resilient floorcoverings can be installed after just 4 hours and ceramic tiles in as little as 3 hours. Mix 1 part water to 1 part Prime & Bind. Calculator. 3. they will 99% of the time be a very poor strength compound. Screeding over ceramic tiles. Not actually used it myself (yet) but looking to level my garage floor so done a little research. The floor is then completely sanded and vacuumed. 1. 4 Use a screed to level the. These BS 8204-7 compliant, quick-laying screeds are less labour intensive and. 5m and need to be about 65mm thick. It pours wet and then dries to create a solid flat surface that is highly durable. C. Thicknesses of 1/4 inch to 3/8 inch are typical (6 to 10. Further information is we eventually want a hard wood or engineered wood flooring. Can be pumped for fast application. Over time, an increase in stress build-up will make the tiles more likely to pop. Scotts Plumbing & Property Maintenance Limited. There are vinyls which let your floor breathe like Altro expresslay but as you have already got your vinyl then one way of doing it to be safe from raising moisture is -. Sounds like you need a suitable DPM, prime and screed. Tile panel movement joints should be created at maximum 3 meter centres in both directions, as well as around the perimeter of the floor. If the plyboard has been pulled down in some area because of the screws when securing it a levelling compound might. Mapei prim grip is the grey primer. 1. If you just want a no-nonsense mountain bike at an attractive price point, the Canyon Neuron AL 6 is a very good answer. Mix a small batch of thick screed and in-fill where the tiles are missing. . Next, with a brush or roller, apply high-gloss or semi-gloss latex. Resilient floorcoverings can be installed after just 4 hours and ceramic tiles in as little as 3 hours. 1). SR1 3mm. A Prime (or a Prime Number) is any whole number that cannot be divided by any other number except itself and 1, without a remainder. • For use with porcelain tile and over a wide range of floor surfaces when mixed with Polymer Additive (#13956) instead of water. 4 Screed. Best Self-Leveling Concrete for a Concrete Floor—Quikrete High-Performance Cement FastSet Self-Leveling Floor Resurfacer for Ceramic Tiles. Underneath the floor tiles was this black substance which I have since found out to. USES Davco DW 1 may be used as a mortar additive for fixing. When bonding directly to the substrate with a bonding agent or a primer the minimum is 1-2mm (feather edge) with smoothing compound. Adding a little extra water to a thick mix can make it spread easier, might increase drying time slightly. Alternatively, you can use a flat shovel or a floor scraper. 9") onto all walls and pillars. hope this helps . There is no additional water, just pour the. If you are installing where existing floors have been removed, check that there are no traces of previous adhesive residue. Use to level and smooth interior concrete, terrazzo, ceramic and quarry tile, epoxy coating systems and non-water-soluble adhesive residue on concrete. Used for: levelling uneven subfloors, internally and externally, prior to laying ceramic tiles, thermoplastic tiles, lino, wood block flooring, or carpet. Before applying a floor covering, Setcrete Latex should be left uncovered for 24 hours when applied at 2-5mm thickness. Last edited: Sep 2, 2010. It can be difficult to determine how much flooring you will need, but at Tile Wizards, we have a method that never fails. 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. They flow like liquid across substrates similar to ‘self levelling. then a liquid membrane goes over this called ardex dpm 1c. The surface should then be cleaned using STYCCOCLEAN C140, rinsed with clean water and allowed to dry. 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. Fast Setting Screeds Allow a faster setting time to achieve foot traffic within a shorter period. Screeding over cracked tiles can cause pressure over time on the screed and begin to break it up in the affected areas underneath. Fig. In place of a screed, you can make use of a paint roller or finishing trowel. 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. Glazed or textured tile surfaces should first be sanded back to ensure a good bond with the concrete, wide grout joints should be sealed to avoid obvious outlines and sinking, and several coats of primer should be used to prepare the site. ARDEX X 77 is ideal for use in swimming pools and fountains and over in-floor heating systems and is recommended for all tile sizes, including mosaics. Reaction score. If there is a significant trench where the grout is – fill it and seal it. Renovation property: £135 to £185 per square metre. Iam a floor layer with 25 five years experience. uk. 0222 / mm thick: 6 mm thick glazed tile + adhesive: 0. Apply the Bonding Primer. 2 litres of water with a slow speed drill. The example of bumps (OP's problem) of one quarter inch maximum, should prove no problem needing levelling (for flat/smooth). Electric underfloor heating is compatible with a surprising number of floor coverings from carpet and wood to polished concrete. Shovel up a full load of mix and dump it on top of the mixture. co. Self-levelling screeds are applied in a liquid form which smoothes itself out over a given area. The new flooring will be loose laid cushionfloor. 1 Add a decoupling mat to the substrate. Available styles include: All these products are water-resistant and help to seal the surface against moisture. Issues to be taken into account include: installation. Table 4. I've just laid a latex screed over electric matt underfloor heating (about 8-10 mm). AS 3958. must be filled. However, I have a number of questions. 2. Ready to tile now, use good quality tile adhesive and grout, powdered (bagged) materials are best. Step 6. then use, f. Ideal for fast-track tiling, ARDEX AM 100 is ready to receive tiles after just 2 hours, regardless of thickness. Self-leveling Properties: Ceramic tiles may have minor level. Tiles greater than 400 x 400 mm should be back-buttered. Over the years one side has very slightly moved out of sync with the other and using a thicker bed would have lost any irregularities in the surface. 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. 1 Step 1: Remove the adhesive residue. I've had three lots of advice, to rip up the existing tiles and start from scratch, to screed over the tiles and lay the vinyl, or to ply over the tiles and lay the vinyl. If the layer of screed is bad and the Tile is cut improperly, it will result in cracking in the long run. Then once the screed is dry use a liquid DPM such as F-Ball Stopgap F77. Photo credit: Weber. Then, dry-lay tiles 2 to 45, making sure that gaps 11 and 51 were even. PT Flooring Specialists. ” In May 1989, Tile & Decorative Surfaces expanded on the issue, opining that “rain is one of the biggest contributors to the leaching problem. We get loads of sub floored Ashphalted as it’s great for a Dpm and building the levels up from parquet wood being taken up. high performance thin-bed adhesive for installing a wide range of tiles and stone including low absorption ceramic tile, porcelain tile, natural and manufactured stone using thin-set. I would assume that. A proper floor fitting will screed over tiles and lay karndean but I have no idea whether it would render underfloor heating useless. pnfl. If the height is permissible, installing a screed is an option. We have been advised to sort the floor out and latex screed was mentioned. Thicker substrates require 2 days per mm. 1 – Step 1: Prepare the surface. 5-6. Renovation property: £60 to £85 per square metre. Perfect for using over ceramics. Working Time: 6 - 7 hrs. As the title says, looking for a good primer and screed to go over quite shiny ceramic tiles. flooring bloke New Member. Screed, float and level from 1/4" to 3" (6 mm to 7. Ceramic, porcelain or stone tiles can be installed over the top of the installed membrane using a suitable Mapei tile adhesive. Self-leveling underlayment has a bright future. Use these tools to calculate the approximate amount and estimated cost of products needed to complete your project. Apply only a thin coat to avoid dripping. Floor levelling compound is also known as self-levelling compound. A) ARDITEX NA ® can be used with confidence over almost all subfloors without priming including ceramic tiles, bitumen and flooring grade plywood. It is probably a low content, eg. PT Flooring Specialists. I am hoping to cover it all with a vinyl sheet. There are vinyls which let your floor breathe like Altro expresslay but as you have already got your vinyl then one way of doing it to be safe from raising moisture is -. Flowable liquid floor screed suitable for applying up to a depth of 5-50mm onto: Floors with underfloor heating or under tile warming; Cement; Concrete slabs; Pre-cast elements; Wooden flooring; Existing ceramic tiles; Existing rigid plastic tiles; Floating floors (e. Grind Down The Levels. What type of thin-set mortar should I use when installing ceramic and stone tile over Schluter™-KERDI? Schluter-Systems requires the use of Schluter SET™, ALL-SET™, FAST-SET™, or an unmodified thin-set mortar meeting the requirements of ANSI A118. They come in thicknesses ranging from 2 millimeters (about 1/16 inch) to 8. Search the floor for any loose or damaged tiles. Then mix a lighter, creamy batch and wash over the floor. insulation board) Bitumen residue* * Best practice is to remove all bitumen. 214: 10 mm thick glazed tile + adhesive: 0. Bonded. A common practice among Singaporean homeowners, overlaying tiles is the process of laying new tiles on top of existing tiles or vinyl flooring. Reply to londonchap81. 9") and tape them together. Needs mixing with a. USE To level uneven internal subfloors to provide a smooth surface. Discuss Advice for self-levelling over old tile adhesive, using Wickes latex? in the Tile Adhesive area at TilersForums. Remember these tips prior to starting work. That way if your kick boards are already fitted to the height of the ceramics there is no need to replace them. You can paint over any blemishes or missed spots that. As it might sound, a bonded screed is applied directly to the. Products for Ceramics and Stone Materials. 24 Oct 2014. Prime and smoothing compound then any LvT. There are three main types of screed – bonded, unbonded and floating. Replace the grout in the lines using a grout float to push the grout into place. Planning - Calculate the number of tiles - Setting out - Laying the vinyl tiles - After care. The tiles will also stick to a concrete floor providing it is covered with a latex screed/self levelling compound. ARDEX FEATHER FINISH is ideal for patching and smoothing minor surface damage to levelling and smoothing compounds i. Rich mixed up a 5 gallon bucket according to the directions and let it slake for 5 minutes before mixing it again. Tile adhesive is often used on large wall tiles to ensure they stay put once installed. The glaze can often act as bond breaker and is a difficult surface for anything to adhere to. Be careful of latex compounds that say they can go over ceramics with no primer. The common types of flooring laid over levelling screeds. Work the chisel under the tiles, forcing them loose. High Pressure Water Cleaning - 1,000 psi (6. 3. Hooe this helps. ” 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. 2-m straightedge laid in contact with the screed. #3. 4. Allowing the UFH system to cool down for at least 48 hours before tiling commences. from 1-2 1/2 in (25-65 mm) mixed to a semi-dry consistency and placed over a latex/cement slurry bond coat, leveled between screeding boards and thoroughly compacted. This product is also suitable for application over existing concrete and screeding, brick, stone, unglazed ceramic tiles, plastic sheet DPC, and epoxy membranes. can i latex screed over the whole lot without removing the cork tiles which are very well adhered to the quarry tiles? or 2. When laying vinyl, ceramic tiles, carpet and other floor coverings. Didn't blow but cracked big time The first thing to consider is the condition of the ceramic tiles. Screeding a floor and setting levels for the required falls is not something for a first time DIY tiler. They only recommend pouring concrete over existing tiles if they are in sound condition and firmly affixed. Rip the whole existing lino up before I put the kitchen units in, put the units directly on the quarry tiles, and then get the lino put in afterwards - I have no idea what the state of the quarry tiles is currently. Answered 15th Oct 2019 Like 0. Now time to ask the ID who say no need screeding why they say so. When the old floor material is a still strong ceramic tile surface though, you can place the new covering over the tiles as long as you create a smooth surface beforehand. 11. For a full flooring renovation, hacking is required to remove the existing tiles. 3 Step 3: Stacking Tiles: 6. 8 Mpa). Hi, quite a common problem tbh. to acheive a smooth, flat floor, once dried. 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. Peter Newman Flooring. of the adhesive, screed and waterproofing compounds onto the surface. Without proper preparation and priming, you risk your tiles peeling up later due to poor conditions. Both times was because they didn't want to remove asbestos tiles. Screed: 20 mm over 3 m . 3. The sudden expansion or contraction results in a lack of adhesion between the tiles and the screed. Remove loose tiles and leave the space open for filling with the compound. A range of smoothing concrete for a smooth, permanent finish to a variety of internal substrates prior to the installation of floorcoverings, choose ARDEX. Every room was covered in thermoplastic ("Marley") tiles, attached with a thin layer of bituminous adhesive. MAPEI Technical Notebook(s): 1. . 2 - 12mm Application. For decades. you risk voiding the warranty of the flooring by not installing on a dust free, flat smooth surface. Suitable to receive floor coverings after 4 hours. In most rooms, the tiles are still in place, in varying conditions. Traditional sand and cement such as a 1:4 ratio could be bonded at 40mm. However, unevenness over 0. Mapei prim grip is the grey primer. so asphalt over concrete, latex screed, either NA or latexplan trade etc. . The dimension between the floor and threshold of the door is circa 20mm, so cant lay a very thick level of screed either, taking into account the eventual permanent flooring that will go on top. In warm and well ventilated drying conditions allow 1 day per millimetre up to 40mm in thickness, so 40 days if 40mm. Ideal for installing ceramic tiles, marble, slate and natural stone onto concrete, cement render, rendered brickwork surfaces or over existing tiles. Ceramic, porcelain or stone tiles can be installed over the top of the installed membrane using a suitable Mapei tile adhesive. Screwfix Select. #1. laid for anywhere from 40-60 days after the screed is placed, dependent on screed thickness. Andy O'Hara. Lay down polyethylene or PVC sheets to separate the concrete from the screed layer. Green Screed. latex floor screed is a cement-based smoothing compound. Tiling floorboards with wood effect tiles offers a variety of benefits over natural wood, including being more durable, and easier to maintain and keep clean. SikaCeram® StarGrout Epoxy based grout for joints from 1 to 15 mm width. maul. The tiles have been removed in some rooms, leaving the bitumen, probably <1mm thick, and not sticky. thank you very much for the clarification. Q. It works like mortar but doesn’t need grouting because it contains no sand or gravel. Fiona_cooks New Member. Hiya I have a small bathroom which I tiled with "bargain" tiles from B&Q. co. Water or latex based screed. You can use latex or enamel paint to cover ceramic tile but you have to prepare the surface by deglazing the ceramic ahead of time. Clean the Floor. It is possible to waterproof and tile over existing tiles, provided the existing tiles are in good condition and firmly attached to the substrate. All that’s required is spreading the compound over the prepared tiles. However, I contacted a specialist anyway, and we are looking at £400 + VAT to remove the tiles. Use the flat slide of the trowel to spread the mortar over an area about 3 feet square. Nonetheless, as simple as this process might sound, there is a lot more to. Ensure the floor is fully dry - the residual moisture level should be less than 0. over ‘semi-dry’ consistency traditional mortar beds before placing ceramic tile, stone or thin brick. I'm new to this and didn't select reply before. Estimated Cost: $75 to $100. Priming becomes even more of a necessity once you consider the amount of dirt, plaster, adhesive, and various. Step 3 – Use a priming agent. SR2 5mmMAPEI.