Tiles came up very easily with zero bitumen attached. And yes you can level the floor after. Small hole dug through 2" soft sandy concrete to reveal hardcore and soil. The type of coating is chosen, depending on the usage of the floor. Once dry apply two coats of Drybase® Liquid DPM as normal. Property is mid 1960s, solid ground floor. Internal or external applied waterstops based on PVC, TPO or galvanised steel for construction and movement joints. I'm purchasing a new build and want to put Amtico Spacia down throughout the downstairs. Prevent moisture penetration with a damp proof membrane that can be painted under your solid wood, real wood and laminate floors. Property is mid 1960s, solid ground floor. Damp-proof membrane is used to protect buildings from moisture by creating a damp resistant barrier. It might seem a bit unusual. 00. Damp proof membrane paint is a liquid DPM that blocks the action of penetrating damp on floors, ceilings, and internal walls. Bostik's damp proof membranes provide essential moisture mitigation and suppression for subfloors, helping to protect your installation for years to come. A reading greater than 2. Step 5: Apply a Damp-Proof Membrane. Small hole dug through 2" soft sandy concrete to reveal hardcore and soil. • 5L tin offers coverage of approximately 6. ARDEX DPM has excellent. 18 Dec 2013. Speak with a technical adviser if unsure. Ikopro Synthaprufe Trade Damp Proofing Liquid - 25L. The existing concrete floor can be used as a base, however a new damp proof membrane (DPM) will need to be introduced. Thin Micro-ToppingProduces durable surface to color or stain. link with wall DPCs to form an impervious barrier to prevent moisture reaching the interior of the dwelling. Thanks for the response. Our liquid waterproof membrane is a liquid DPM that makes your floors durable and water-resistant. It is supplied ready to use. • The floor void beneath the beams should be appropriately vented to ensure that a cross flow of air between two externalDamp Floor: If your floor has RH readings above 75% and below 95%, with a functioning structural damp proof membrane present, we recommend the use of ARDEX MVS 95. Liquid DPM and waterproofing paint to waterproof and damp proof your property. These can over time allow a build up. Fixing such an issue requires either applying a damp-proof coating to the surface of the concrete or a damp-proof membrane could be laid at the top of the concrete during construction: Damp-Proof Floor Coatings: A lot of the damp-proof floor coatings these days can be applied directly to the concrete floor surface using either a brush or a roller. 70 Ex VAT. To ascertain if this is the case, there are two main techniques for testing a substrate’s moisture level, which. A liquid DPM such as Bostik Cempolatex Moisture Suppressant must be applied in two coats. It is ideal for use on damp floors and walls. If the floor will be suspended then a liquid dpm is pointless as no physical contact will be made. A surface damp proof membrane (DPM) is a liquid system that when applied to a damp substrate: bonds strongly to the surface;2 Feb 2011. £. But these started to fail due to the 131 primer breaking down after a while. The product definitely gets the job done with great value for money. Bostik Screedmaster Rapid DPM is a ready for use; one part, water-based damp proof membrane. Tried and tested and it works. The floor is also damp, which I am going to treat with a liquid DPM. Alternatively, dilute the first coat of Drybase® Liquid DPM with 30% water for use as a primer. If you are using full contact adhesive to stick down your new wooden floor, a broadcasting of Kiln dried sand as you apply the 3rd coat of the Liquid DPM, will act as a superb adhesion promoter, if for example you use Lecol 5500 adhesive or Sika. £41. 00 € 60. 1 Feb 2010. Where the product is laid onto a concrete surface wh. If you lay a liquid dpm, you need to cover the walls as well, for the same reason. PRODUCT CODE: SDH0931. 50 Ex VAT. As Glueman mentioned, the original bitumen glue would likely have been thought of as partly a DPM, when i am doing parquet block repairs to concrete floors which have a bitumen residue left on it, i apply 2 coats of a liquid dpm, either Lecol PU280 or Sika Rapid, both are superb products and 2 coats is normally enough to form a. #1. 25 Ex VAT. Assuming that the damp proof membrane (dpm) under the concrete has failed in areas then yes you possibly would get the odd patch of dampness showing in the floor. The bitumen is less than a millimetre thick - painted on by all accounts. Wall and floor moisture barrier. Hardwearing – high abrasion resistance. Last edited: Sep 2, 2010. You can buy self-levelling floor screed compound from any DIY store. I would. The article below explains several important tips and methods of damp proofing your concrete basement floor. Waterproof Blue is a one-product-solution for the waterproofing prior to tiling in bathrooms, wet-rooms and concrete floors. If you have a engineered wood floor and your new slab is dry below 75%rh then technically you don’t need one. ★★★★★ ★★★★★ ( 3 ) Product code: 47327. Product is solvent-free, so odourless and taint free, making it ideal for all internal applications. 3. weberfloor DPM can be applied on substrates such as concrete and cement-based levelling compounds. 3 CM%. Ensure floor is levelThe weathertightness is important to reduce the possibility of surface cracking. It might seem a bit unusual. If I put a damp proof membrane down first, like a paintable one like Wickes paintable bitumen or Drybase Dpm in white, would products like this work under self levelling compound?Wickes Bitumen Damp Proof Membrane Liquid - 25L (71) £80. USES Commonly used in the following areas: Providing sandwich damp-proof membranes for floors. It is available in black or white with a consistency similar to that of thick emulsion paint. A range of high quality DPM membranes from Capital Valley Plastics, designed for use with solid concrete slabs. Model No: DPC225. I have attached a photo after removal. #3. For example, if there is a significant problem with damp rising through your quarry tile. 83 – £ 178. Mapelastic AquaDefense provides a thin, continuous barrier to protect adjacent rooms and floors below from water damage. All tiles and sand cement screed removed and last remaining suspect area. How to install a liquid damp proof membrane you when to use a damp proof membrane wood and beyond blog how to lay a liquid based damp proof membrane you what is a dpm and why do i need one polycote. 21 May 2010. 50 Inc VAT. It is available in black or white with a consistency similar to that of thick emulsion paint. It had lino down, which I lifted up last night and it was very damp and a bit mouldy underneath. Damp proofing can also be integral when added to the concrete mix, the concrete itself water resistant. A damp proof membrane (DPM) is used to create a barrier between a concrete (or screed) subfloor and the floor covering that is laid on top such as wood,. Assuming that the damp proof membrane (dpm) under the concrete has failed in areas then yes you possibly would get the odd patch of dampness showing in the floor. The DPM will be laid first, usually as a liquid product 'painted or trowelled' onto the concrete surface, then the screed laid over that. A liquid DPM such as Bostik Cempolatex Moisture Suppressant must be applied in two coats. How do Liquid DPMs work? RFC Liquid Damp Proof Membrane (DPM) is a professional 2-component applied surface primer. As a result, it’s important, particularly if you’re planning a DIY installation, to ascertain the best way to fit your floor. Non-toxic, non-hazardous and solvent free liquid damp proof membrane suitable for walls both above and belowground. Once applied, it cures to form a flexible and elastic membrane that. The bitumen is less than a millimetre thick - painted on by all accounts. it’s was very easy to work with, it had excellent adhesion to the concrete floor it was being applied to. It is available in black or white with a consistency similar to that of thick emulsion paint. I need it for another job so would this work the same as DPM on a small concrete floor under vinyl? glob@l, May 17, 2019 #3. Floor under carpet marked with chalk for wet areas. Step-by-step guide for how to apply liquid DPM for concrete floors. Most damp-proof floor coatings are applied directly to the concrete floor surface using a brush or roller. The black layer is possibly the adhesive from the previous floor such as thermo plastic tiles or parquet. It helps to prevent damp and moisture from entering the building’s structure and interior. Can be used where a structural DPM is not present or is ineffective. , 1/8 in. Liquid Damp-Proofing Systems. I'm not 100% convinced they are asbestos tiles - but I best err on the side of caution. The DPM above concrete should be protected by either screed or a floor finish unless it is a material that can serve as floor finish. Many damp-proof floor coatings are used directly on the concrete floor surface with a roller or brush. 33. The most common type of DPM is installed during the building process. Lay dpm, or liquid dpm across dpc on outside, down bricks across haunching and over existing dpm. Discover important FAQs including what is liquid DPM, what is the best liquid DPM and more. Laitance must also be removed from concrete. Visqueen High Performance Damp Proof Membrane. Damp-proof membranes are a versatile product and can be used for a wide range of applications, such as creating a protective. A damp-proof membrane is a layer of material usually laid below concrete floors during construction. Sika Waterproof Coating Grey 5kg. The wrong adhesive being used to lay the vinyl, or. Getting someone to do a damp test to find out the relative humidity RH% of. I probably would have done the same thing if there was rising damp. For further help and advice with damp proofing and Liquid DPM please call our product experts today. You may need to apply a damp-proof epoxy coating to the concrete before laying a new floor. £30. Drybase 2mm Plaster Membrane Mesh (2m x 20m) - Low-Profile Plaster Membrane For Use on Damp Walls. then a liquid dpm will need to be used as well as a 3mm thick latex layer as most adesives wont bond properly to the dpm. A Liquid Epoxy Damp Proof Membrane (DPM) is often used as a remedial solution where an existing DPM has failed or was never installed. Apply sand-blind base (this base should be level to within 5mm along any 3m straight edge). The permanent solution for damp proofing floors • Forms a reliable surface damp proof membrane (DPM) on damp concrete floors • Waterproofs cracks & rising damp on solid floors • 1x 1kg epoxy activator pack • Fraction of the cost of new concrete installation • Domestic, industrial, agricultural & retail applications • No more spending hours smashing concrete. The process. Then once the screed is dry use a liquid DPM such as F-Ball Stopgap F77. Once applied, the product cures to form a membrane that is flexible and elastic. It is applied in the same manner as ordinary emulsion paint with the added benefit of application in damp conditions. Screwfix Select. Thanks for the response. Holds back rising damp where a damp proof membrane is either missing or defective. Can be applied to damp surfaces. A damp proof membrane is primarily used on solid material floor constructions and it is designed to act as a waterproof barrier, preventing moisture from travelling into other. Laying a DPM over the floor slab (not sure on the integrity of the one below the slab so just in case. ARDEX DPM has excellent. Suitable for the damp proofing of interior masonry wall surfaces. £100 - £600. Unlikely to have any DPM. It stops around 10mm away from the internal walls in all rooms. Location. Flexible - easy to detail and install on site. DPM is also suitable as anThis is where a damp-proof membrane (DPM) is put into use; essentially a large sheet of polythene, bituminous felt or copper sheet which should be placed between the concrete slab and the screed. I am the Managing Director of the Multi-Award Winning Speed Screed. You can use Liquid Damp Proof Membrane with a glued down or floating floor. We have had a full structural survey done which highlighted damp at the ground floor level. Floor is as follows: TOP 70mm Screed CH pipes here and there Polythene slip layer 100mm insulation boards DPM 100mm concrete DPM hardcore Clay / ground BOTTOM And yes the DPM layers are. Damp-Proof Floor Coating. 30811761. 99. weberfloor DPM can be applied on substrates such as concrete and cement-based levelling compounds. Damp Proofing Concrete Floors With Liquid Membranes. Sovereign Epoxy DPM is a solvent free two-part resin that chemically cures to provide a surface membrane. Hi. Liquid Epoxy Damp Proof Membrane 5kg (Metal Tin) Rating: 100%. Wykamol Technoseal DPM Damp Proof Paint. Will a self levelling screed compound stick to a Bitument liquid DPM? Hello, I have a steel frame 1920s' bungalow with a concrete raft foundation floor and no DPM. Hitting off the 1" top screed, applying a liquid DPM paint sealer to the 3" concrete underneath, then a 1" layer of latex over the whole floor to level it off. P. Can be over painted after 16 hours with most types of floor coatings. Drybase® Liquid-Applied DPM is suitable for use on solid floors, embedded timbers and floor-to-wall. SikaBond® Rapid DPM Solvent Free Resin Primer and Damp Proof Membrane for Cement Based Substrates PRODUCT DESCRIPTION SikaBond® Rapid DPM is a single part moisture curing polyurethane. Wait until the first coat of liquid DPM is touch-dry - approximately 15 to 30 minutes at 20°C – before applying the second coat at right angles to the. Alternatively, liquid DPM solutions based on reaction resin systems which can be applied on top of the substrate to control moisture up to 98% RH. Drybase Liquid-Applied DPM is a single-pack barrier coating that is supplied ready to use. Manufacturers will be able to advise. Cavity wall with bitumen dpc. Since 1991, Polycote have laid millions of square metres of epoxy floor paints and coatings in almost every environment throughout the UK. This Epoxy DPM is a two-component, solvent-free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete. The moisture readings taken at the time were 120 and 85, although the 120 reading was due to fresh concrete having recently been laid to level. The installation of a liquid damp proof membrane is a vital stage in the construction process, for both new builds and refurbishment work where a structural DPM may be missing or damaged, or where residual construction moisture is present in the floor. 2 coats SBR. 41. Mapelastic AquaDefense provides a thin, continuous barrier to protect adjacent rooms and floors below from water damage. Any joins in the damp-proof membrane should overlap by 300mm and sealed thoroughly with a waterproof adhesive. richel7. Our costs are ballpark averages – get a local tradesperson to quote now. This told us tha. e. – The whole floor is concrete and has a section about an inch deep where the fireplace used to be. This enables earlier access onto the floor for the application of screeds, coatings and other floor coverings including tiles, vinyl, wood and carpets. Damp Proofing Concrete. Mix. This water-based compound can be applied to damp concrete floor slabs, screeds and walls. Can be used as a damp proof membrane and as part of a designed structural waterproofing system. Liquid DPM for concrete floor as a rising damp treatment. Fix 50mm insulation to outside of frame. . Apply prior to laying laminate or wooden flooring, over wall-to-floor junctions. With that said, there are various options when you are damp proofing a concrete floor. for above ground use. 2kg/m². A damp proof membrane (DPM) is used to create a barrier between a concrete (or screed) subfloor and the floor covering that is laid on top such as wood, ceramic or quartz tiles, laminate or carpet. Sika Code 175129. Cures in half the time of conventional epoxy based surface damp proof membranes. It is true that a 100mm concrete screed will take around three and a half months to dry out (1mm per day) depending on time of year, whether a dpm or insulation was laid underneath etc, so it's a guesstimate !! In our game, dry actually means moisture levels are less than 75% so your concrete floor is only 25% dry and will release moisture for. . During construction a concrete floor was cast and plastering undertaken internally. The carpet fitter said the concrete floor was too damp for the flooring i wanted. Tiles came up very easily with zero bitumen attached. Drybase Liquid-Applied Damp-Proof Membrane High-strength damp-proof coating for a wide variety of applications. Coverage: 1 gallon of Abocrete, without sand or aggregate, covers 80 sq. 1, your new concrete will need drying time, approx 1 month for every inch, then a DPM is required. Resin Floor Coatings UK (RFC UK) offer floor and wall coatings, screeds, resin floor paints, primers, repair and cleaning products to the home and commercial markets. #1. Two coats will provide protection up to a maximum hygrometer reading of 95% RH. Choosing a damp proof membraneLiquid dpm on concrete floor with no dpm. Prepare substrate. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. co. Apply in Two Coats. Not to say I wont but I have laid plenty of floors with no DPM an even in my old house which I screeded with screedmaster 2 and laid van gogh, I rent it. She has ground water under the garage that comes through the concrete. uk. Description. No DPM. Coverage. £6. We decided to remove them all and lay new carpet. 19. To laymen, it would seem like this. Suitable for internal. Wickes Quick Drying Drive Seal - 5L. For this solution, you are essentially painting the floor of the basement. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint; Rising Damp Treatment; Water Repellents; Vapour Control Layers; Internal Waterproofing;. • Protects walls and floors from water ingress and dampness. Pour the resin into a clean, dry bucket. It’s primarily designed for brushing onto concrete floors and fine concrete. Damp Floor Epoxy Kit. A liquid-applied damp-proof membrane (DPM) is a simple and effective solution for damp-proofing a concrete floor. 45sqm to supply and fit. BBA certified - third party accreditation. Delta Water Based Epoxy Resin is suitable for all applications where concrete or masonry requires waterproofing and protection. applying 2 coats of Drybase® Liquid DPM. This effectively creates an airtight seal through which moisture cannot break. Wickes are open, click and collect only, as are all the other ‘hardware’ type businesses. If the concrete is level you could glue the floor to the concrete using an adhesive (as you would a ceramic tile] It is advisable to use an epoxy primer first, it is expencive, about £60 for an average room. After nearly a year the smell had still not gone. Broom Overlay Mix 6000 PSIAdd water and mix - Grey or white. DPMs can also be used to form. It can be applied very simply with an airless paint spray machine, roller or paintbrush. Shop for waterproofing products & vapor barriers designed to protect your foundation. If a DPM has failed or perhaps was never installed in the first place, the features. RAISED ACCESS FLOOR A tough waterproof. Isolates damp substrates for new floor finishes including carpets and laminated flooring. It is supplied ready to use. Very cost effective single coat application reducing time on site. Whoever did the repair once the fireplace was taken out didn't bother putting any DPC down and just filled it with a concrete/sand mix which had just crumbled over time. When using as a liquid DPM make sure the substrate is load-bearing, and that any laitance is removed mechanically (common on new concrete floors/screeds). Drybase Black Liquid Damp Proof Membrane - 1L (0)The DPM may be above or below the concrete and continuous with DPC in walls and piers (See Figure 1). The vinyl that was laid bubbled up, so contractor removed it. Once applied, it cures to form a flexible and elastic damp-proof membrane. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. Applications: Floors. Which type of coating is chosen will depend on the intended use of the floor. 5kg. Can be over painted after 16 hours with most types of floor coatings. 100% solids, high build coating. Provides a flexible and resilient barrier to penetrating damp on walls and floors. It is available in black or white with a consistency similar to that of thick emulsion paint. Speak with a technical adviser if unsure. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint; Rising Damp Treatment; Water Repellents; Vapour Control Layers; Internal Waterproofing;. How does a Liquid Epoxy Damp Proof Membrane work? I don't know anything about using damp-proof membranes. House built in 60's. We have had a damp survey and it is confirmed that there is no issue with rising damp. Liquid screed. I removed the old carpet and realised there was damp patches on the tiled floor below, im believe there is no dpm membrane and quarry tiles were laid over lime morter bed, my contractors PVA'ed self levelled over the floor to try and stop it but the self. At DryCore , we have seen hundreds of cases like this and have helped clients to overcome the problem using various professional damp proofing methods. These attributes combined produce a unique multi-purpose liquid DPM with dozens of potential applications including but not limited to: • Damp proofing storage basements, where other tanking methods too costly • Damp proof paint for walls and ceilings • Concrete Floors: as a tough liquid floor DPM applied above or below screeds. Would slurry under vinyl floor covering work the same as liquid DPM? glob@l, May 17, 2019 #1. 5L. Old coal cellar, half is decent concrete but the other half has a bitumen type coating already. Sika primer MB or Sika-Bond Rapid DPM) or, in the case of a floating floor, a properly installed heavy-duty, non-permeable plasticThere is a distinct difference between dampproofing and waterproofing. Damp Floor Epoxy Kit. Larsen DPM Universal is a superior 2 pack epoxy surface applied liquid damp proof membrane that enables laying of flooring even where moisture levels are at their highest up to 98% RH. #1. A liquid epoxy damp proof membrane (DPM) is a two-component epoxy resin membrane, specifically designed to be applied to damp floors to create a barrier between your floor and the layer below. Damp proof membranes can be used to help resolve damp issues which already. wet coating. The membrane can support a 65 mm screed or an insulated floating floor. This can only normally be guaranteed if its an new build or extension and most houses have been sold, inherited etc. BAL DPM is resistant to water, chemicals, grease and pollutants, and can be used internally or externally either as a DPM, primer, waterproofer or residual m. Drybase® Liquid-Applied DPM is a single-pack barrier coating for above ground use. No need for a separate primer. Ground bearing concrete floors - 1960s to 1990s. A liquid epoxy damp proof membrane (DPM) is a two-component epoxy resin membrane, specifically designed to be applied to damp floors to create a barrier between your floor. Palatine. Protection up to 3m. Professional tips: how you should do it. If you need some advice on what DPM your floor project will require you can speak to one of our flooring experts using the live chat (when available) or call us on 0333 533 3330 during normal office hours. 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. £107. Would a liquid dpm work,in past I had similar problem, I've just poured some liquid dpm in to the hole & help it with a trowel to find it's way under the concrete,seem to work as I never had damp issue when I moved indoor stop cock to new position at previous place & here when I laid new pipe under utilty floor after clay pipe failed, 10 years on, not. A two-component epoxy resin membrane known as a liquid epoxy damp proof membrane (DPM) is especially made to be applied to damp floors in order to create a barrier between your floor and the layer below. 1. £. By choosing the right product for your application and following the manufacturer’s instructions carefully, you can enjoy peace of mind knowing that your concrete floors will. These can over time allow a build up. Rapid Set Skim CoatRepairs, levels, and smooths concrete for applications. Isolates damp substrates for new floor finishes including carpets and laminated flooring. A damp proof membrane, more commonly known as a DPM, is a material that prevents moisture from penetrating the internal walls and floors of a property. Virtually solvent free liquid epoxy resin damp-proofer. Liquid Epoxy Damp Proof Membrane - 5kg. Once applied, it cures to form a flexible and elastic membrane that. If the coating is not going to be the final decorative surface and a. thick. Withstands 98% RH. ARDEX DPM 1 C. Drybase White Liquid Damp Proof Membrane - 5L (0) £55 . 2. then a liquid membrane goes over this called ardex dpm 1c. If there was no dpm I would suggest a uniformal distribution across the whole floor. Made from recycled materials. Also there is less likely to damage the components of the floor makeup at this stage over placing them at foundation stage with regular concrete. When mixed together and applied to a concrete surface it forms a barrier against the passage of water and is tolerant of residual moisture in concrete floors. Damp proof membrane Floor screed PIR cavity board Lay, level and compact the hardcore in layers (usually 150mm min / 250mm max). I am looking for some advise about laying a SLC with a liquid DPM. 16 Nov 2016. Now, let’s clarify some things concerning product. Self levelling compound. 5%CM (~ 4% Tramex) for a concrete subfloor indicates that a suitable damp-proof membrane must always be installed – either a 2 coat/2 part liquid layer (e. The best solution is to uplift the tiles and dispose of accordingly, then use a specialist screed such as F-Ball Stopgap 1200 straight over the bitumen. Damp proof membranes (DPMs) can be used to help resolve damp issues which already exist or to avoid damp or moisture problems in. of the floor. Drybase Liquid-Applied DPM is a single-component two-coat paintable damp-proof coating that is easily applied to substrates by brush, roller, or spray. The concrete slab I poured for my utility room extension is slightly uneven - a small dip into the centre. goldenboy Super Member. See moreApply around the edge of the room using a paintbrush, and then use a pre-wetted short pile. Screed with ceramic tiles laid on it. USES For priming, consolidating and sealing of: Absorbent and non-absorbent sub-floors, consolidat-ing weak cement screed and isolation of old adhesive residues. It helps stop moisture passing from one to the other. Chimney damp proof course (labour and scaffolding not included) £75 per roll. Liquid DPM 5L Rating: 100%. 01/12/2021. Installing a floor membrane on concrete to fight dampness is a relatively simple process, but getting it wrong can cause even more issues down the road. When we stick any floor down to the sub floor, solid or engineered, we insist on installing a liquid DPM unless the existing is guaranteed to be 100% in tact. To ascertain if this is the case, there are two main techniques for testing a substrate’s moisture level, which. Drybase Liquid-Applied Damp-Proof Membranes. Thin Micro-ToppingProduces durable surface to color or stain. Liquid Damp Proof Membrane Hydraguard is a High Performance Primer. attack but is designed to be over-coated with other resin finishes. The product is applied in two coats. Hardcores varied in quality - many have since proved to be totally unsuitable. Cement based coating for preventing water and damp penetration in walls and floors. RonaScreed DPM is a liquid applied surface damp proof membrane designed to reduce the passage of water vapour and allow the adhesion of thin bonded and fast drying screeds to concrete which is either not fully dry or does not have a functioning DPM. This is added at ground floor level and is generally. Add to Basket. goldenboy Super Member. 80 Inc VAT. If you have that problem, I don't think a damp-proof membrane on top of the concrete will help. If a screed such as A38 or Topcem was used, this can reduce the drying time, and with A38 this can be just one day. After moving into a 1960s house we had a flood that started lifting old vinyl tiles under the carpet. These can adversely affect a concrete slab on grade. 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. 3. Features. Discover how and why you should be. merit said: ↑. 2. Preparation is the main thing for the layers, and the substrate should be dry and clean. Sika SikaBond Rapid DPM Resin Liquid Primer 5 Litre. 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. Drybase Liquid-Applied DPM, Drybase ECS Epoxy Floor Coating, and many products from the Vandex range including Vandex BB75 and Vandex Unimortar 2 can be applied directly on to damp floors to form a damp-proof barrier. The same larger hole after I cut back some of the sandy concrete. 5m) It will have 50mm insulation boards on top of it, followed by 18mm/22mm. ARDEX DPM 1 C R has been specifically developed to provide a DPM or to suppress residual moisture in concrete slabs and cement sand screeds that are dense, well compacted and sound, where readings of up to 98% RH can be accommodated. #2. Buildings have been dampproofed for years, a practice that used to be. The product is applied in two coats. What is a Liquid Epoxy Damp Proof Membrane? Liquid Epoxy Damp Proof Membrane has two components - a base and hardener. This Epoxy DPM is a two-component, solvent-free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete floors. Can be easily applied by brush. 2. rifraf74. The. It can also be used as an adhesive for the likes of wood block flooring and insulation boards, or as a plaster bonding agent – even on difficult surfaces. The existing concrete floor can be used as a base, however a new damp proof membrane (DPM) will need to be introduced. I am in the process of improving our kitchen. How To Install Damp Proof Membrane on Concrete Floors.