It pours wet and then dries to create a solid flat surface that is highly durable. As a result, areas of up to 1,000m2. It provides a good, smooth, hard-wearing floor surface, making it popular in construction. GET IN TOUCH Office Phone: +632 7900-5656 Customer support: +632 7900-5633 Bostik Philippines, Inc. . 5 ratio of cement to sharp sand. 7. It is often made from concrete, but it can also be made out of asphalt or wood. Put simply, a screed is a hard coating flooring surface similar to concrete. Packaging: Primer G is available in 25, 10 and 5 kg drums and in 1 kg. A screed floor is a type of construction flooring that has an even thickness and surface. Manchester • Member since 5 Jun 2015 • 64 jobs, 95% positive feedback. Easy-Melt combines the benefits of a high quality bonding bitumen, with the greater efficiency, safer handling and reduced waste that come from this convenient package. We’re specialists in supplying and installing liquid flowing floor screeds to customers across the Midlands. Removal of the tiles is non-licensed work, ie. 3 Terms and definitions 1. I would prefer not to have to screed the whole floor. 2. Arditex NA is a premium latex screed. Anyway, I asked the council to send someone round to fix the floor. This was screwed to the concrete floor underneath, also stuck down with loads of stinky bitumen. It has an interesting chemistry, with different forms used for different purposes, but in the paving trade, it's most common use is to 'beef up' mortars and concretes. 3. £75 per m2. In our trade, it's most commonly used in its form as a thickish, gloopy white liquid, which echoes its roots as a. All rights reserved by RCA Records, a division of Sony. A Tables of U-values and thermal conductivity 6. Screed has three meanings in building construction: . It's a complete lack of knowledge on your floorlayers part or possibly just a carpet fitter trying his luck. The floor is a concrete sub base with a 20-25mm bitumen screed on top of that. However, when levelling timber floors, or screeds containing underfloor heating then only fibre-reinforced products are suitable i. Engineering News Online provides real time news reportage through originated written,video and audio material. Fixit Pidicrete WP 19 – 24 Dr. Accepts subsequent floor coverings in 4 hours. Fixit Novolac Screed Dr. 3 Using self-leveling screed on bitumen; 4 Waterproofing and tiling, some helpful tips: 4. Application of bitumen waterproofing putty. Screeds above underfloor heating should not exceed 40m 2 with a maximum length of 8m. 1 Weep screeds. Moreover, the screed and LVT will prevent moisture evaporation, further exacerbating the problem. The sand & cement screed must be reinforced using a galvanised steel mesh as recommended in AS3958. Flooring Components – Top coat; Flooring Components – Wear Course; Floor Components – Base Coat;. It removes differences in thickness from 1-10mm. The unit weight of a material is. Floating engineered wood is ok. Self-levelling smoothing compound, designed for smoothing and levelling internal floors. By. Mastic asphalt is also used for paving and its application is suitable across a range of performance needs from minimal foot traffic to. BS 8218:1998, Code of practice for mastic asphalt roofing. Medium Duty. Gallery. Coupled with the fact that laying a new floor on top of old bitumen can cause a negative reaction to the new material, it is best to remove bitumen floors before looking to lay a new one. Screwfix Select. Subsequently, apply WAKOL. then a liquid membrane goes over this called ardex dpm 1c. Can be steam cleaned or pressure washed. Asphalt floor screed is made by combining specific bitumens and aggregates with limestone filler. Wickes are open, click and collect only, as are all the other ‘hardware’ type businesses. 5 Ltr. Introduction: A screeded bed is typically established approximately 5 to 10mm high, and the pavings then compacted down to the required level. Bitumen can be problematic for tiling over and cause unnecessary damage and stress – the last things you want to endure during a renovation project. Anhydrite screed usually costs in the range of £15 – £20 per sqm, mastic. . Or + - 2mm over 3 meters. To be completely honest it's a nightmare to get up when still sticky. Asphalt floor screed is made by combining specific bitumens and aggregates with limestone filler. It may be applied onto either a solid in-situ concrete ground floor slab or onto a precast concrete floor unit. 24 Oct 2014. Caterpillar asphalt screeds feature hydraulic variable-width adjustment and electrically heated screed plates. The screeding/latex has laminated (like puff pastry) and is breaking up. The bitumen is less than a millimetre thick - painted on by all accounts. Total Product Weight. Labour. Commissioning the underfloor heating before tiling commenced. For FREE estimates and technical advice get in touch with us today using our contact form or call us on 0207 781 8150. BAY SIZE. From what I can see its a bit of a can of worms when the subfloor is bitumen/bitumen coated. Watco's primers are used in the preparation prior to painting bare, painted or powerfloated concrete floors. Screed Weight. The first method requires the screed topping to be hard so that a scabbling machine can be used to remove the top layer of the screed surface, which contains the bitumen. Our coatings have resistant properties, ensuring durable protection and a seamless, uniform leveling on concrete. Tiles came up very easily with zero bitumen attached. 1300 788 780. You can put concrete over asphalt, and it is a great choice as a driveway base for residential homes. Fixit Pidipoxy EC Dr. Also, all pre-application preparation should be completed in accordance with the roof coating manufacturer’s requirements. Bitumen floor screed is an eco-friendly, cost-effective and aesthetically pleasing flooring solution that has been gaining popularity in recent years. 5 ratio of cement to sharp sand. The bitumen mastic blocks shall be broken into pieces and then stocked in layers first round the sides and then inwards towards the center of the mixer. SOPREMA’s bitumen roofing systems are BBA certified, impact and tear-resistant, and they are guaranteed to provide. A flat board (screed board, floating screed) or a purpose-made aluminium tool used to smooth and to "true" materials like concrete, stucco and plaster after they have been placed on a surface or to assist in flattening;; A strip of plaster or wood. The house was situated in Caversham. Contact. Our screed plates have proven themselves to last at least four times longer than the OEM screeds. Asphalt Tarmac offers the widest range of asphalt and high-performance road surface solutions in the UK. In this case the screed or topping is separated from the floor by insulation boards or an impervious membrane. Large area repair mortars. This document is useful for engineers, architects and contractors involved in building and civil. When it is expressed in the basic SI Unit of mass (kg/m 3), it is usually referred to as density, but when expressed in terms of. Non-hazardous and low odour acrylic formula. We provide excellent results through our liquid screeding and concrete flooring services. Road. Dr. Our costs are ballpark averages – get a local tradesperson to quote now. £14 per m2. then a liquid membrane goes over this called ardex dpm 1c. Our screed plates have proven themselves to last at least four times longer than the OEM screeds. #2. For levelling or smoothing differences in thickness of 1-10 mm to receive all types of floor coverings. Easy-Melt bitumen is simple to use, as the blocks are just. Specialist blast, ballistic blocks and fast beam and block materials. There are two types of screeds - Bonded and Unbonded. With the slogan “Quality on all levels“, our product range has a wide coverage with over 2,000 qualitative high quality construction products worldwide for the most diverse of applications. 2 mm - 30 mm. I bought some real wood (oak) to lay over the ground floor of my ex-Council house which was built in the 50's. Layer Thickness. Removal of the tiles is non-licensed work, ie. Sub floor not too bad level wise but big planks so need it to be as flat as poss. Mastic asphalt screed has many advantages when. Suitable to receive floor coverings after 4 hours. Prime and smoothing compound then any LvT. 2. Got a timber floor to put down for a customer. Furthermore, a number of special polyurethane products can be installed as insulation under poured-asphalt floor screed and withstand temperatures of +200°C without additional heat protection, or. Whether you need some new asphalt flooring installed or repairs to an existing asphalt floor Heritage Asphalt can help. Bituminous Coating Waterproofing. This type of screed is used in a variety of. 3. because a latex based screed should never ever be used over Bitumen, the green colouring may be due to a chemical reaction between the two substrates which will require the screed to be mechanically removed. Removal of Asbestos Bitumen Glue & Adhesive: Cost + VAT. From basecoats and rollers to a range of levelling compounds, shop our floor levelling products from trusted brands. Fixit Piditop 333 Dr. Page 1 of 2Monolithic screeds should be laid within three hours of the concrete sub-floor being poured. It has been used as an adhesive. 1. Concrete; Sand/cement screeds; Anhydrite screeds; Wooden boards; Underfloor heating/warming; Insulation boards; Existing tiles; BitumenMastic Asphalt Screed admin 2020-05-21T19:36:07+00:00. It can be installed to create drainage falls, level out uneven substrates, and provide a stable base for the specified roof /deck waterproofing system. Purchase your next favourite publicationARDEX manufacture a range of award-winning latex-based and water-based self levelling & smoothing compounds for internal and external use. #2. If you are looking for expert flow screeding contractors then go no further than Flow Screeding Services! We look forward to receiving your flow screed or floor screed enquiry. Floor and Roof Screeds Vermiculite concrete screeds are light, insulating and intrinsically fire resistant. Is there a primer I. Effective surface preparation is crucial for a variety of work tasks, which is why HSS offer a comprehensive range of tools and equipment to suit your needs. Pot Life. Proofex Engage, the original mechanically bonded, pre-applied, below-ground. In modern construction, , manufactured from bitumen modified with limestone fillers and specially graded aggregates. 5. 28 Jun 2008. Will be difficult to use bitumen paint specially under the plaster, I think your best bet is to use hot bitumen pour which will fill in all the nooks and crannies. The addition of other polymers means that it can be flexible and resistant to crack formation. 15mm mains water - laid hessian felt sleeve on top of pipe (not around) 28mm gas - wrapped gaffer tape around the pipe. Ne. Remove parquet and some bitumen, seal the floor and remaining bitumen, then use a self levelling compound to level the floor. wrap hessian sleeving around all of the pipes ensuring they're covered. Browse short-form content that's perfect for a quick read. Wet screeding should be programmed to allow sufficient drying out time before dry lining is to commence. Asphalt paving repair contractors - Floor screeds even on a concrete slab are laid each time a developer has finished the slab concrete. How to make concrete slab waterproof - Floor screeds even on a concrete slab are laid each time a developer has finished the slab concrete. The mixture is heated to 230°C for pouring and spreading or for spreading mastic asphalt screed. 2. Asphalt floor screed is also known as mastic asphalt has a multitude of applications. Cat asphalt paving machine - Floor screeds even on a concrete slab are laid each time a developer has finished the slab concrete. Aluminium. a long piece of writing, especially one that is boring or expresses an unreasonably strong…. Hope this helpsHowever, it was common practice to apply a layer of bitumen on top of the floor slab to stick down woodblock flooring or thermoplastic floor tiles, which acted as a basic DPM. When it is expressed in the basic SI Unit of mass (kg/m 3), it is usually referred to as density, but when expressed in terms of weight (kN/m 3), it is usually referred to as unit weight. I wouldn’t recommend screw & plugging ply it will cause the bitumen to crack and then fail the ply. Prime the concrete part of the floor. It's more commonly (when used indoors) used as screed. Will be difficult to use bitumen paint specially under the plaster, I think your best bet is to use hot bitumen pour which will fill in all the nooks and crannies. 2821 SW 23rd Terrace, Suite 1. I was told to use 2 pack floor. The screed on this paver spreads and smooths the asphalt. At Rawlins Paints, we stock a wide range of asphalt, concrete and metal repair products to deal with damage to floors, walls, pipes, driveways and other surfaces. Cannot be ingested by animals. Moreover, concrete provides a more rigid and even surface for the tile installation. Concrete Repair. Due to the different particle matrix in a granolithic. SBR is more formally known as Styrene Butadiene Rubber. Otherwise, if the surface is irregular, it is better to use the liquid membrane, even on the old cover. you cant put the dpm directly on to the bitumen as. I agree with your damp guy's assessment - take the timber up, strip the bitumen (horrible job), take the timber battens out and fill the holes, then put in a 2- or 3-coat epoxy resin DPM which will seal the surface properly. The cost of flow screed is between £10 and £16 per square meter, based on a 50mm thickness and a daily coverage of up to 1,500 square meters. asphalt, quarry tiles, internal steel floors, ARDEX Damp Proof Membranes, porcelain tiles, flooring grade plywood etc. ScreedMax Grano is often used for external screeding projects under paving, around pools and areas of high traffic. screed definition: 1. 2-2012 Waterproofing. Liquid screed floor on the other hand is an. It's a complete lack of knowledge on your floorlayers part or possibly just a carpet fitter. Once the condition of the bitumen residue is assessed, we would recommend the following products and processes. This is particularly important when the levelling out an uneven substrate. Latexplan No Ammonia is suitable for levelling differences in thickness between 3mm to 10mm on new and existing substrates. Packaging: 25kg bags. Heidelberg Materials offer Asphalt deliveries 24 hours, 7 days a week up to a distance of 50 miles from each strategically located asphalt plant. N. Heating is not required for cold mastics, they are immediately ready for use, but they are more expensive than the first option. Bituminous coating (asphalt coating) is made of bitumen based materials. This procedure covers the methodology to be followed for carrying out IPS Flooring in line with the approved technical specifications. Asphalt floor screed is also known as. 2-2012 Waterproofing Membranes for External Above Ground Use mandate minimum fall. Check out current offers for the AP1055. It provides a good, smooth, hard-wearing floor surface, making it popular in construction. 237. Standard Paving Range. com. info@speed-screed. 5 ft. Customer Service Email: phil-customer. 00 (Ex VAT) New lower price. 2 July 2013 at 8:01AM. It works well in areas that need levelling and if there is a problem with insulation or damp and is a great. 2. 2. Same as self leveller over flooring ply, 1 coat SBR 1-4, pour away, happy days. If the floor is just soil underneath the screed then take the level down enough to allow for. DIYDave. For the application of hot bitumen mastic the latter should be heated to 274F, so that it is easy to apply and penetrates well into all the cracks and irregularities. Two parts, Solvent-free; Good flexibility, withstand micro cracks in concrete; Go to product. Im surprised the floors lasted that long 300 will fail over bitumen everytime. Once delivered you can use the mixture for up to 12 hours or one working day. Re: Asphalt floor. This is particularly important when the levelling out an uneven substrate. It may be applied onto either a solid in-situ concrete ground floor slab or onto a precast concrete floor unit. 7 kg. Impermeable and forms a barrier to chemicals. Rubber Crumb Screed. Using a kango would also get you below the bitumen and are less likely to release fibres. Quick-drying, flowable Calcium Sulphate Screed. link with wall DPCs to form an impervious barrier to prevent moisture reaching the interior of the dwelling. From the mid 1960s to the mid 1990s a typical concrete floor comprised a layer of hardcore, a polythene damp proof membrane laid on a thin bed of sand (to prevent puncturing), and a floor screed. There was bumps and bad areas of patching that hadn't quite adhered properly. It may be applied onto either a solid in-situ concrete ground floor slab or onto a precast concrete floor unit. SBR diluted mix over bitumen, 2 coats, follow instructions on tub, likely 1-4 ratio with water, 1st coat front to back, 2nd coat side to side (if that makes sense) Wickes sell a 1tr SBR whereas usually only available as a 5lt. To help determine the. 26 galvanized sheet gage), corrosion-resistant weep screed or plastic weep screed, with a minimum vertical attachment flange of 3 1 / 2 inches (89 mm), shall be provided at or below the foundation plate line on exterior stud walls in accordance with ASTM C926. 1. Building products Quality assured building products for. (14) For steps, ramps and floors, in wet or oily areas. 5:25 AM. Spread evenly over the floor surface with a steel screeding trowel to give the required thickness. It has an interesting chemistry, with different forms used for different purposes, but in the paving trade, it's most common use is to 'beef up' mortars and concretes. Price Addition Info. Can you paint an asphalt floor? If you have asphalt floors, you can paint the tiles to give the room a new look. i try to keep up on new products and a company called ardex uk make a latex based levelling compound called (arditex na)that goes straight over bitumen to seal it. Mastic asphalt screeds offer a variety of benefits that make them a preferred alternative to traditional concrete screeds. A few floors were finished with wooden blocks laid in bitumen. Polymer modified. June 28, 2022. Bitumen and asphalt pump; Semi-trailer floor-screed conveyor *Prices are pre-tax. 0. Latexplan No Ammonia is suitable for levelling differences in thickness between 3mm to 10mm on new and existing substrates. Subfloor should be level to + - 3mm over a 5 Meters. Used the primer neat as guidelines suggested. Theses products can be applied as an asphalt Resurfacer or screeding the surface. The pattern on that bitumen together with the age of the house (mid-1960s), use in the kitchen and missed areas (e. Asphalt floor screed is made by combining specific bitumens and aggregates with limestone filler. Two parts, Solvent-free; Good flexibility, withstand micro cracks in concrete; Go to product. This high-production paver offers a fast-heating screed system, durable components, and easy to use technology. I have damp coming up around the edges in some rooms kitchen, lounge and all along a newly built internal partition stud wall. SCREEDS SAND AND CEMENT Some types of sub-structure require a sand and cement screed to receive the asphalt. Use a roller, paint pad or brush to apply. Using a kango would also get you below the bitumen and are less likely to release fibres. Causes of floor coating blisters. 5/5. N. The SE47 FM and SE60 FM Cat screeds have front-mounted extenders for wider width paving for paving ranges of 8 to 20 feet 6 inches, and 10 to 25 feet 6 inches,. g where the free standing cooker was) are all indicative that there wasn't parquet on the floors and that it isn't a DPM. If the surface is in screed, the bituminous membrane is the ideal solution. ScreedHomeProductsScreedSelf levelling, rapid drying, traditional, standard and polymer modified floor screeds. Typical applications are the protection of concrete floors and screeds against wear from traffic abrasion, as well as a. Caterpillar asphalt screeds feature hydraulic variable-width adjustment and electrically heated screed plates. It was laid towards the completion of the building prior to hanging the doors and fixing the skirtings. The remaining screed is pitted and covered in old bitumen in places. Bitumen is usually on the back of carpet tiles and sometimes is left once they have been removed scrape and sand it off. 95. Subfloor Preparation & Levelling. All values are approximate and are subject to variation. Screeds above underfloor heating should not exceed 40m 2 with a maximum length of 8m. Mapei UK Official site. Providing surface and sub-surface drainage by implementing falls, to an outfall, is an integral part of waterproofing design. To do the job properly, the screed needs to place mix at the right thickness, on the right slope, and with the right surface texture. Bituminous membranes are perfect for waterproofing roofs, basements, below-ground structures, bridges and other structures. Which means it will be a waste of time putting a new floor down if the latexinflg/screed blows. We will cover your under floor heating system with a liquid screed that is especially. Polyurethane Primer. Enter the desired depth of the screed mix (in millimeters). Three choices for successful screed selection in commercial paving. My house was built 1950. There are three main types of screed – bonded, unbonded and floating. #1. Fixit Super Latex Pagel ZL10 Pagel U40 Dr. Iam a floor layer with 25 five years experience. ON AVERAGE: £20 – £40 PER SQM. Dr. Thanks to its waterproofing qualities, it is widely used in construction. On absorbent surfaces,. Unit weight or density is used to quantify the weight per unit volume of an object. For a bagged liquid screed, ARDEX offer ARDEX A 70 GYPFLO. For Indoor Use. 5 Ebor Court, Randall Park Way, Retford, DN22 7WF East. If the moisture is only. Works on any subfloor – Ardex 2-part self-levelling compound can be applied directly to pretty much ANY floor substrate including, Bitumen, Old adhesive residues, Concrete floors, floor screed, Quarry Tile, Ceramic Tiles, Porcelain Tile, Terrazzo, Floor paint, Plywood, No more ply and even Smooth/polished concrete. On anhydrite surfaces prior to applying cement-based products. PermaSEAL 1 Floor Membrane and Newton 601 Floor Membranes are a cost-effective way to protect your flooring from damp. SCHOMBURG, the construction chemicals manufacturer from Detmold, develops, produces and markets system construction materials for the national and international market. “Vibratory screeds generally achieve 75% to 85% density behind the screed, whereas compaction screeds will achieve approximately 85% to 92% and high-compaction screeds could get as high as 96%. Furthermore, a number of special polyurethane products can be installed as insulation under poured-asphalt floor screed and withstand temperatures of +200°C without additional heat protection, or can be used for cold-temperature applications down to –180°C. However, it was common practice to apply a layer of bitumen on top of the floor slab to stick down woodblock flooring or thermoplastic floor tiles, which acted as a basic DPM. A flat board (screed board, floating screed) or a purpose-made aluminium tool used to smooth and to "true" materials like concrete, stucco and plaster after they have been placed on a surface or to assist in flattening;; A strip of plaster or wood. BS EN 13813, Screed material and floor screeds — Screed material — Properties and requirements. Ground bearing concrete floors - 1960s to 1990s. If it's going to be level and 2"-3" thick i don't see the need for SLC. 4ft 1 10347284 ala50302 spacer 1/4" 20 10346591A) ARDITEX NA ® can be used with confidence over almost all subfloors without priming including ceramic tiles, bitumen and flooring grade plywood. We also have a selection of floor grinders and dust extractors. #1. However, it makes a difference whether you apply the screed directly to the bitumen membrane or whether other layers follow in between. A few floors were finished with wooden blocks laid in bitumen. R703. The cost of a traditional screed is between £11 and £14 per square meter, based on a thickness of 75mm and a daily coverage of 125 square meters. A floor screed is usually a cementitious material made from a 1:3 or 1:4. We provide a solution for all types of flat roof constructions, whether your project is a new build or refurbishment. When paving, the last point of contact between the paver and the final product is the screed. This should consist of 1 part cement to 4 parts clean coarse sand by volume and be finished with a wooden float to a smooth surface. Asphalt floor screed is made by combining specific bitumens and aggregates with limestone filler. Our calculator supports three mix ratios: 1:3, 1:4, and 1:5. In the end I used an old 2" chisel. This causes a shadowing effect to the Newley installed smoothing compound /screed. Today, new solid floors are far more substantial, typically comprising 150mm of compacted hardcore, 50mm of sand, a polythene sheet DPM, 100mm of concrete, then around. Asphalt floors. If used as an underlay for , two coats may be required. The coating cures to form a rubber-like elastomeric waterproof membrane and may be applied over many substrates, including asphalt, bitumen and concrete. Quick-drying, flowable Calcium Sulphate Screed. DIYDave. Cement screed is the most commonly installed type of screed and averages around £12 per sqm. 3. Suitable for use with underfloor heating and for encapsulating electric cable undertile heating systems. (29) £3. It was (and is) is a mixture of cement and course sand (typically one part cement to three or four parts sand) mixed with the minimum amount of water and laid to a. We had the tiles tested and they definitely contain asbestos. . Screeds or concrete surfaces to receive wood finishes:Bitumen, or asphalt, is a type of substance commonly used as a protective coating for floors. ceramics I don’t know. ® Construction Chemicals’ range of specialised floor coatings are screeds based on bitumen, dry shake cementitious materials, self levelling cementitious screeds, epoxies and polyurethanes. Floor, pavement, joint repair mortars. IS 1346 (1991) is a standard for waterproofing of roofs with bitumen felts, covering the materials, design, laying and testing of the system. com - 0800 242 5589 - Flow Screed Minimum Thickness I’m Andy Parkin, Managing Director of the Multi-Award Winning…A floor screed is usually a cementitious material made from a 1:3 or 1:4. I'm not convinced this is enough and so I was planning to ask he does the following. Hi Pete, I have the answer. Buy from a wide range of tarmac and asphalt paints, for driveways, forecourts, roads and car parks. Screeds The surface of the screed should be finished according to theWatco Sand Additive 5KG. The screed mixture is then poured onto the surface and levels itself out, which makes the installation very easy. Screed (material) pumping truck. I've taken up some old thermoplastic floor tiles laid in the early 70's. 13 Aug 2020. Don't use a bitumen at all, you are correct eventually your screed will fail. THICKNESS. Not all coatings are acceptable or compatible on all roof surfaces. laminate is ok. alterego. . Suitable for use over plywood substrates and MAPEI surface applied DPMs in most cases without priming. If the designer considers that. No, You can’t directly apply traditional cement-based self-levelling compounds that you mix with water, on top of Bitumen. This bitumen-friendly self-leveling compound is relatively easy to use and can be applied to many different types of flooring, including… Concrete, and Floor Screed; Ceramic, Porcelain, and Quarry Tiles; Plywood, Terrazzo, Old Adhesives & More; This economical product sets in as little as 4 hours, and you can apply the floor covering quickly. I don't really see any reason why you would have to wash off the PVA. Like a lot of houses of that age, the ground floor is bitumen/asphalt over a concrete screed. 5 ratio of cement to sharp sand. Was asked to quote for sanding and refinishing an old parquet floor, but when I did survey I found that a lot of the blocks are loose and need re-laying. Quick-drying, flowable Calcium Sulphate Screed. If it's going to be level and 2"-3" thick i don't see the need for SLC. For all that are researching. While this is not something that you can alter on the jobsite, it can mean your paver will be less reactive to any changes that. weberfloor flex is a self-smoothing floor levelling compound — often incorrectly referred to as a self levelling screed or self levelling floor compound — which can be tiled onto and is an easy screed for applying onto floor substrates subject to some movement, such as wood or underfloor heating. The hotel believed this idyllic location on the edge of Dartmoor would make the perfect destination spa and aimed to create luxurious fitness and wellbeing facilities. It may be applied onto either a solid in-situ concrete ground floor slab or onto a precast concrete floor unit. +65 98922908 or 88695136 -Whats App or SMS admin@diatomreno. we don't need a specialist. This will dry in approximately one hour depending on the undulation of the sub floor surface. The floor must be thoroughly swept to remove all traces of dust and loose particles, taking. BS EN 13318, Screed material and floor screeds — Definitions. Mastic Asphalt Screed should be laid directly to the primed concrete/ sand & cement screed wherever possible. This has left a black bitumenous residue on the concrete screed and I'm concerned about tiling onto it. The primer provides a key, and seals any porous surfaces that the bitumen products need to adhere to and can be applied to most of surfaces including concrete, brick work, metal materials and existing bitumen surfaces. Same as self leveller over flooring ply, 1 coat SBR 1-4, pour away, happy days. This will make the screed strong and will adhere over the Bitumen . IS 2571 Laying of in-situ cement concrete flooring. uk. There are many proprietary screeds on the market and information about these can be obtained from the manufacturer. Mastic asphalt screed is also called AS and, contrary to the above example, has nothing to do with water. The screed acts as an insulation between the tile adhesive and tacky bitumen. 1 Weep screeds.