Drybase® Liquid-Applied DPM is a single-pack barrier coating for above ground use. The only way to tell properly, is to carry out a proper test. Most damp-proof floor coatings are applied directly to the concrete floor surface using a brush or roller. Liquid DPM 5L. 23 Jul 2018. 2 coats liquid DPM. It did not cause any problems before (I took off the old screed and tiled floor already). Before applying the damp proof paint, stir the contents of the bucket well. I need to put down a damp proof membrane and self levelling compound on top of that. Alternatively, dilute the first coat of Drybase® Liquid DPM with 30% water for use as a primer. It helps to prevent damp and moisture from entering the building’s structure and interior. Produced from Recycled Material. To remove this type of asbestos containing floor. #1. Upper floors are airtight timeframe. Easy Handling & Installation. so what liquid dpm should i use. Description Sika Rapid DPM (Damp Proof Membrane) is a solvent free reaction curing resin for use on cement based substrates. Good afternoon. When a plastic DPM is missing or not practical, this product can be used as a liquid DPM for concrete floors to protect against residual moisture and rising damp. Arditex na has a low compression strength not suitable for wood or tile, the bitumen adhesive should always be removed mechanically then a rh% test carried out. The concrete floor is in a finished bathroom and from what I can find out online the bitumen is a bit messy to apply. It should accommodate 0mm to 5mm (or thereabouts) It will cover an area of 26m2 (4m x 6. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint; Rising Damp Treatment; Water Repellents; Vapour Control Layers; Internal Waterproofing;. There is no damp proofing on the floor. Liquid damp proof membrane For existing concrete floors, you can also apply a liquid damp proof membrane, which provides a retrospective damp proof membrane. #3. The type of coating is chosen, depending on the usage of the floor. 7 days or sealed. liquid dpm and self levelling compound. It is available in black or white with a consistency similar to that of thick emulsion paint. You have maybe 3mm of smoothing compound hence it can be pushed up and fail. rifraf74. 2. 5" sand & cement screed 3 coats of synthapruf 4" concrete 1:3:6 6" hardcore well consolidated & blinded with sand I have two questions: 1. Apply prior to laying laminate or wooden flooring, over wall-to-floor junctions. Run a string across the ground. I've moved into an old stone cottage and am looking to get wood flooring in the living room. 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. Professional tips: how you should do it. Accommodates Hygrometer readings up to 98% RH. The installation of liquid damp proof membranes is a vital stage in the building process, for both new builds and refurbishment work where a structural DPM may be missing or. Virtually solvent free liquid epoxy resin damp-proofer. b) Physical DPM upstand, using DPC 300mm. Liquid Screeding. These can over time allow a build up. It's brilliant stuff and the new glueless karndean can literally just sit on top. ARDEX DPM 1 C R can be applied to give a dry film thickness of 250 microns where all surface. £. 00 € 60. Liquid DPM & Self Levelling Hi all, this weekend I plan on applying a liquid DPM and self levelling compound to my garage floor slab. Plenty of cement/latex/fibre based. Drybase Liquid-Applied Damp-Proof Membrane High-strength damp-proof coating for a wide variety of applications. merit said: ↑. Getting someone to do a damp test to find out the relative humidity RH% of. 30mm. • 1 or 2 coat application. • Solvent Free, Low Odour. Country. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint;. LAC is typically used as a damp proof membrane to ground floors, as a vapour barrier behind cladding and for tanking of basements. This is a solvent, water free, epoxy resin and. dried sand broadcast into the wet. Liquid DPM and waterproofing paint to waterproof and damp proof your property. Can be used as a damp proof membrane and as part of a designed structural waterproofing system. Drybase products have the advantage of being extremely easy to apply. 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. I would advise a single part flexi tile adhesive on top which will enable you to have stone, ceramic or porcelain tiles fixed. £30. My questions are: Is there any reason to use a roll of DPM vs a liquid one or vice versa? Do I need to apply any sort of primer before putting down the SLC on top of the DPM? How thick does my layer of SLC need to be? 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. In this case, it is preferable to fit insulation below the concrete slab, where it helps the. The edges of the DPM should have been flopped up the walls, say, 300mm and later trimmed back to suit. 75 m2 1. This is a solvent, water free, epoxy resin and moisture tolerant curing agent that allows for immediate installation of moisture sensitive floor finishes onto concrete and. 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. I have attached a photo after removal. Allows immediate installation of moisture sensitive floor finishes onto damp concrete and screed. John Lewis are correct in being very very cautious re: damp, it is critical that the prep is spot on and damp levels sorted before any attempt is made to lay the Amtico. Single Sided DPM Tape - 75mm x 33m. Because we were laying Karndean Flooring to a new extension we needed to check the % RH(relative humidity) of the concrete with a hygrometer. Then 100mm insulation and 18mm ply as a floating floor system. 100% solids, high build coating. Flooring guy says as a last resort we could use a liquid DPM on top of the screed but he’s worried that will trap moisture between the new DPM and the one under the concrete and would rather dry out naturally. but something that is suitable and compatible for the cementone - cempolay self level cement, maybe Ardex or Fball dpm thanks guys once again you point out the obvious to a fool like me. Traditional screeds. Don't use a bitumen at all, you are correct eventually your screed will fail. Basically it was laid like this: timber frame built on top of garden dirt. Provides a flexible and resilient barrier to penetrating damp on walls and floors. Liquid Epoxy DPM - 2. This type of waterproofing membrane is applied directly to the surface of the concrete floor to protect it from water seeping through and getting the floor or walls wet. It is ideal for use on damp floors and walls. 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. It can also be lapped up walls to the DPC before the application of floor and wall coverings. I have noticed that the concrete floor isn't level (by about 5-10mm) and I want to fix it. Please Note: Most wood floor manufacturers state a maximum substrate moisture content of 2 % CM (ca. co. Its wrong. 3. 21 Sep 2016. Using a spirit level to check the level of a floor and measure thickness of screed required. 00 € 60. It's an expensive solution, but at least you get peace of mind. The DPM membranes are available in 4M x 25M rolls as well as a handy pack ideal for smaller jobs. 3. Category: Floor Treatment Tags: Damp Proof Membrane, Damp Proofing. Drybase Liquid DPM is recommended for use on concrete, masonry and embedded timbers in above-ground applications. ★★★★★ ★★★★★ ( 3 ) Product code: 47327. Liquid-applied membrane (LAM) is a monolithic, fully-bonded, liquid-based coating suitable for many waterproofing and roofing applications. . #1. Step-by-step guide for how to apply liquid DPM for concrete floors. This can only normally be guaranteed if its an new build or extension and most houses have been sold, inherited etc. High performance, over-banding sealing tape system for postsealing and waterproofing of construction. 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. Drybase® Liquid-Applied DPM is a single-pack barrier coating for above ground use. The product is applied in two coats. As long as your dpm is lapped and bonded with your dpc your internal floor level can finish higher than your dpc, although can cause issues with external door opening,generally your finish floor level would be gauged with dpc to finish at the same height. The DPM above concrete should be protected by either screed or a floor finish unless it. . - I'm wondering why the DPM is needed. ON AVERAGE: £20 – £40 PER SQM. The specific liquid DPM system will depend on the type of substrate or screed. 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. The DPM should: have sealed laps of at least 300mm wide. The DPM will be laid first, usually as a liquid product 'painted or trowelled' onto the concrete surface, then the screed laid over that. We have had a damp survey and it is confirmed that there is no issue with rising damp. Discover important FAQs including what is liquid DPM, what is the best liquid DPM and more. That’s assuming quarry tiles are in good condition, no loose tiles, no known problems with major damp, no issue with raising floor height by leaving tiles in place, etc. Test Area Because of the wide variety of possible substrates and site conditions, it is always advisable to check adhesion to the background by testing on a sample area before starting any job. One solution is to dig up the floor and replace the existing damp proof membrane with a new plastic membrane then relay the concrete slab. the DPM and new floor can then go on top of this. Odourless, rubber-enriched bitumen emulsion. Liquid DPM 5L Rating: 100%. Whoever did the repair once the fireplace was taken out didn't bother putting. 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. Chimney damp proof course (labour and scaffolding not included) £75 per roll. Free from water and free from solvents, this primer allows for a trouble-free installation as no swelling of the wood is to be feared. Side extension refurb: old concrete slab is uneven with a line of about 10mm difference in heights down middle, and dpm under screed is visibly not 100%, with a few gaps. Liquid epoxy DPM is often used as a remedial solution for existing concrete floors, as it creates an impermeable layer that keeps water in the concrete slab. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. Still have moisture coming through (I think), and after further reading, 50mm of concrete is required to 'hold it down' and stop penetration. Damp proof membrane (DPM) taped at the edges and anywhere it is joined. 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. I’d like to install a liquid DPM but currently have an existing screeded concrete floor that sits above the DPC. RonaScreed DPM is also suitable for use prior to the application of tiles, soft flooring or wood. ARDEX offers a range of liquid or surface Damp Proof Membranes (DPM) to protect the floorcovering from residual construction moisture and rising damp, when a structural. If its not right. Browse damp-proof membrane products from Toolstation here. Damp proof membrane (DPM) taped at the edges and anywhere it is joined. Using pin m/m's on a concrete or s&c screed floor needs experience - more important is what is the composition of the slab or the in-situ screed and if there is an actual DPM below the floor. The product is applied in two. Ground bearing concrete floors - 1960s to 1990s. Suitable for damp proofing concrete floors, foundations and masonry walls below, at or above ground level; Can also be used to protect retaining wall structures; Apply cold with a brushes for a cost effective and low labour application; For use on floors, 1st coat covers 1m²/litre and 2nd coat covers 1. take account of possible differential. Sikabond Rapid DPM is a solvent free reaction curing resin primer and damp-proof membrane for cement based substrates. One high build (250 microns) coat is usually sufficient. Damp survey. The important things to be considered are: The concrete substrate is: reasonably level; free of mortar matrix;. I need to put down a damp proof membrane and self levelling compound on top of that. Technoseal Floor DPM. Developed to suppress residual construction moisture in cementitious subfloors including power floated concrete and sand/cement screeds. Tanking and waterproof render up to a metre high will help, alternatively, do what they did 100 years ago. Add to basket. It might seem a bit unusual. The wall is now down and its time to level off the floors. 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. 00 Inc VAT. Suitable for extensions, basements and cellars. Ideal for general waterproofing and fixing. Depending on the product, it may be smooth and flat within 1-2 hours. A liquid-based damp-proof membrane will be suitable for our outdoor concrete subfloor exposed to weather elements. - lay a liquid dpm. product and the atmosphere should not be condensing. This can include timber floors, tiles, laminate flooring and carpet. Two coats will provide protection up to a maximum hygrometer reading of 95% RH. This told us tha. £30. @Joe87 there are surface applied liquid dpm products available that you could use on top of that floor which would get rid of the issue of rising moisture affecting the new timber floor. Reaction score. Personally would look for breathable systems like they use a lot in Italy where the buildings are often very old. It is available in red or yellow, in 5 or 10kg units, and has a fast curing time of 12 hours minimum. 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. € 80. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. 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. If. In certain situations, i. Preparing the Oversite u2013 The Extension that 10k Built . I would advise a single part flexi tile adhesive on top which will enable you to have stone, ceramic or porcelain tiles fixed. To be honest it’s worth having some sort of moisture suppressant put down just to make sure. Damp proof membrane paint is a liquid DPM that blocks the action of penetrating damp on floors, ceilings, and internal walls. Where the product is laid onto a concrete surface wh. Bostik Screedmaster Rapid DPM is a ready for use; one part, water-based damp proof membrane. Acts as a bonding agent for plaster and curing agent for concrete. If the coating is not for your final decorative surface. This can. Learn how to damp proof concrete floors with a liquid epoxy DPM, a remedial solution for existing or failed DPMs. Dri-Wall DPC Injection Cream. RFC Epoxy Damp Proof Membrane is a professional 2-component applied surface primer for brushing onto concrete floors and fine concrete screeds. 99. Any help would be appreciated. Two part epoxy-based surface damp proof membrane. The upper half is an empty cavity. A: A damp proof membrane (DPM) is a thick plastic sheet used as a waterproof barrier between a concrete subfloor and wood floor. From below, installing insulation to improve the floor or as part of a basement insulation project is fairly straightforward. There is no damp proofing at all and the floor was a bit damp. Then SL, this will take care of the craters and uneven sections from remaining tile adhesive. Liquid DPMs gave the best protection but were more expensive. Bostik Screedmaster Rapid DPM is a ready for use; one part, water-based damp proof membrane. £. where the ground was. In a house with a DPM already installed you will have a few inches of concrete to weigh the dpm sheet down. Ready to use. I'm looking to tile the floor, which currently has parquet on it, bonded to the concrete with a bitumen adhesive. I need to put down a damp proof membrane and self levelling compound on top of that. Rapid Set Skim CoatRepairs, levels, and smooths concrete for applications. Install bituminous DPM 2 coats. And yes you can level the floor after. The product is applied in two coats. DIYDave. Ideal for floors with damp or rising damp problems. You are. 186. 17DW400. Discover how and why you should be. 6. - finish with a self levelling compound. An ARDEX Damp Proof Membrane will protect the floorcovering. 2. The easiest method is to push quilt-type insulation into the spaces between the joists from below. 1. It stops around 10mm away from the internal walls in all rooms. Last edited: Sep 2, 2010. Checking your Garage Floor for Damp. Old pre 1960's house with a concrete ground floor. We have purchased a 4 bed detached house built in the 1950's. Two-component, single coat application, damp proof membrane for controlling residual and constructional moisture in cementitious substrates. 0. I 've dug down and put 100mm of concrete down will liquid dpm to meet up with the existing dpm and 50mm screed ontop easy. Could use sand/cement mix if ‘craters’ are. Before applying the damp proof paint, stir the contents of the bucket well. If there was no dpm I would suggest a uniformal distribution across the whole floor. EITHER. Walls: Can be used under render or plaster as a water barrier or. The Everbuild Black Jack DPM is a ready-to-use emulsion that can be used as a curing agent for concrete floors and acts as a waterproof layer for walls, above-ground structures and foundations. Self-leveling concrete can be used as an underlayment for tile, carpet, or other floor coverings. Slimline floor membranes, on the other hand, are quick and easy to install and create an air gap that allows for finishes to be applied while the damp floor is still drying out. Would that be ok or would it sink?. For further help and advice with damp proofing and Liquid DPM please call our product experts today. marginally exceeds 70%, a liquid damp proof membrane (DPM) is required. So in this hot dry weatherI intended to paint the floor with Wickes bitumen liquid damproof membrane, cover this with a polythene damp proof membrane follwed by a concrete screed. where the ground was uneven or where there were soft spots below the slab, it might be reinforced with a mesh. The DPM we use does not cancel all moisture out as this will end up. Our costs are ballpark averages – get a local tradesperson to quote now. Hadley General builder/plasterer. Pretty simple fix; Cons. Use 1000 gauge or thicker – ideal for this is the polyethylene use for the DPM under your concrete subfloor. Any recommendation on products to use- most I've found say only suitable for concrete, I've only found multi tite 2k suitable for both but it's not cheap. Dust, dirt, oil, grease and other contaminants should be completely removed. You would need to thoroughly clean the surface first and is. Add to basket. Add to Basket. Our Liquid DPM (LVM Liquid Vapour Membrane Damp Proofing Paint) is a water-based ready-to-use waterproofing system supplied in an 5L tub. Our products are all carefully selected by our in-house experts to provide the highest level of protection for your property. Category: Floor Treatment Tags: Damp Proof Membrane, Damp Proofing. Insulation with be internal PIR. water leak from the toilet in to the floor. 5 % Tramex). I have an out building/utility (15-20 years old), built by previous owner. Liquid Damp-Proofing Systems. If you have a engineered wood floor and your new slab is dry below 75%rh then technically you don’t need one. Floor under carpet marked with chalk for wet areas. In this video I apply a damp proof membrane / tanking slurry to a concrete floor to stop moisture coming in to the building where we have issues with mould a. Hello all, We have a 10 year old downstairs shower set on the existing concrete floor of a 60's house. I agree, looking at the liquid DPM's that Wickes do I'd say you'll struggle to get someone to guarantee tiling on them would be ok, sorry!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. • Protects walls and floors from water ingress and dampness. • 5L tin offers coverage of approximately 6. The dpm resin, is a sticky gooey 2 part epoxy based liquid to be precise. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint; Rising Damp Treatment; Water Repellents; Vapour Control Layers; Internal Waterproofing;. Holds back rising damp where a damp proof membrane is either missing or defective. Suitable for heavy wear areas, concrete floors where a DPM has failed or was never installed, or areas of damp concrete which cannot be surface dried prior to painting. Where oil and grease are present it should be treated with a degreasing. You should use them to protect all final floor finishes. Description. S. Can be used as a damp proof membrane and as part of a designed structural waterproofing system. Water is added to ensure a thorough mix and to aid workability. 30 Jan 2022. Epoxy Damp Proof Membrane Epoxy damp proof membrane is a coating that suppresses residual moisture in cement and concrete floors to speed up the process of installing floor coverings. A damp-proof membrane is a layer of material usually laid below concrete floors during construction. The DPM should: have sealed laps of at least 300mm wide. 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. 18 Aug 2023. Basements: As part of a waterproofing system beneath ground level. • Weatherproof protection for walls, above-ground structures and foundations. 00 Inc VAT. £ 51. Lancashire. When applied on top of screed, it needs to have a further coating to protect it from damage such as laminate, tiles, vinyl, wood and carpets. Basements: As part of a waterproofing system beneath ground level. Cement screed is the most commonly installed type of screed and averages around £12 per sqm. In contrast, a vapour barrier (VB) is fitted on the warm side of walls or roofs to stop interstitial condensation. How do you install a damp proof membrane on a concrete floor? Do I need liquid DPM? Testing the Floor’s Moisture Level The Resin Flooring Association (FeRFA) guidelines stipulate that a DPM will be required if there is more than 4 grams of water per cubic centimetre passing through the substrate in a day. If the coating is not going to be the final decorative surface and a. Screwfix Select. Wood and Beyond propose the use of vapor barrier with all. 5 m²/litreCurrently, the floor has crappy ceramic floor tiles stuck down with pretty minimal adhesive onto the concrete, which in turn has had a thin layer of bitunimous liquid DPM poured onto it in the past. 24-month shelf life. It provides a dry barrier against moisture and can be painted over with resin-based coatings or overlaid with other floor coverings. Our costs are ballpark averages – get a local tradesperson to quote now. A suitable gauge damp proof membrane (DPM) and thermal insulation must be provided. But too much water will extend the drying time and. Then 2 coats SBR 1-4 diluted. Bit confused with all the different products and combinations though. When stripping the bathroom, the area under the bath tub was bare concrete, lower than the rest of the "black" floor throughout the property. 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. Liquid DPMs gave the best protection but were more expensive. The vinyl being laid before the concrete has dried out. If a radon barrier is required, lay this over the grouting layer and extend it. Bostik's damp proof membranes provide essential moisture mitigation and suppression for subfloors, helping to protect your installation for years to come. Once dry apply two coats of Drybase® Liquid DPM as normal. 100m² per roll. On average, the cost of screed flooring will be around the £250 mark, depending on various factors. Drybase Liquid-Applied DPM is a single-pack barrier coating that is supplied ready to use. BBA certified - third party accreditation. £. Like x 1; List; merit Well-Known Member. Add to basket. #5. Find out the benefits, advantages and steps of installing a liquid epoxy DPM for existing or new concrete floors. A few months have passed since then and is now on average 2. 22 Feb 2007 #1. So I have a concrete floor in the kitchen (concrete - DPM - 50mm screed), knocked through into the outside toilet which just had soil floor. A DPM on an external tiled area will protect moisture sensitive stone such as granite from staining due to rising ground floor water, as well as rain water. The installation of liquid damp proof membranes is a vital stage in the building process, for both new builds and refurbishment work where a structural DPM may be missing or. How to install insulation in a suspended beam and block floor. The installation of a liquid damp proof membrane can be a vital step in the building process, for both refurbishment work and for new builds where a structural damp proof membrane may be. 30mm. very rough concrete like a garage floor. 99. After removing 6 of the tiles, I can see that this bituminous stuff is peeling away with some of the tile adhsive, and so Im guessing its gonna. coating to create a key for the screed. #1. The schedule of works from the loss adjuster (provided by Blyth Group, contractor), says the following regarding the floor: Apply self-levelling compound. A reading greater than 2. Liquid Epoxy Damp Proof Membrane 5kg (Metal Tin) Rating: 100%. [email protected] Nov 2016. The affected rooms are a small kitchen and lounge. Internal or external applied waterstops based on PVC, TPO or galvanised steel for construction and movement joints. You need a flooring professional to use an epoxy liquid DPM and screed suitable for this area and is not a job you should think to attempt 1 pinhole is a failed floor. A damp proof membrane will commonly be laid during the construction of a concrete floor in a new build to protect the floor from rising damp. take account of possible differential movement. This Epoxy DPM is a two-component, solvent free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete floors. Liquid epoxy DPM is often used as a remedial solution for existing concrete floors, as it creates an impermeable layer that keeps water in the concrete slab. Hello, hoping someone can help. Sika Rapid DPM is intended for priming and sealing absorbent and non-absorbent subfloors, Also suitable for. The booklet covers topics such as joint isolation, thin set tile, termination, and utility finish. Add to Basket. However, this option may not be the best solution in many circumstances. Fast curing – ready to tile or recieve smoothing compounds in 4 – 5 hours 2 Component, solvent free, One Coat DPM Suitable for use on surfaces with a moisture reading of up to 98% Relative Humidity (RH) Weight. Visqueen EcoMembrane DPM. Drybase Liquid-Applied Damp-Proof Membranes The Drybase range of liquid-applied coatings including Drybase ECS Epoxy Floor Coatings and Drybase Liquid-Applied DPM can be applied directly to damp floors to. Stack Exchange Network. Once applied via a roller the compound creates a barrier between the concrete and wood flooring. DPMs come in solid or liquid form, the latter being a practicable solution for a garage conversion. The black layer is possibly the adhesive from the previous floor such as thermo plastic tiles or parquet. Pumaprime DPM - a solvent-free liquid applied surface DPM for concrete floors. 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. EITHER. If it’s solid wood you need a surface dpm. Liquid epoxy DPMs are ideal for concrete floors, such as garages, where the original damp proof membrane is missing or has broken down. Discover important FAQs including what is liquid DPM, what is the best liquid DPM and more. But if you’re planning to install concrete floors in an area prone to dampness or water damage, it’s essential to protect them with a liquid damp proof membrane. :thumbsup. Up to 10 years warranty on selected items. the wooden floor is laid. 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. £30. Location. 2 Feb 2011. How To Do Damp Proof Membrane F Ball F77 Dpm On Concrete Floor. Ideal for waterproofing structures, such as culverts, retaining walls and bridge abutments, this Black Jack DPM is also commonly used for general waterproofing. First scrape up as much of the residue as possible apply a cote of Ardex NA then the liquid Dpm and then another layer of Ardex NA. Browse our selection of damp roof membrane (DPC) for use on concrete to prevent moisture from seeping through layers of flooring. These black DPMs can also be used with underfloor heating - under normal operating conditions this will not adversely affect the membrane. Resistant to frost and salt attack.