Solid wood should be laid on top of 3/4 ply first as differing. 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. I have a fairly damp & uneven concrete floor, probably about 20 years old or more. Grinding the old bitumen from the concrete floor. Impatience and damp concrete subfloors. Water under tiles. £30. Find out the benefits, advantages and steps of installing a liquid epoxy DPM for existing or. We’re specialists in supplying and installing liquid flowing floor screeds to customers across the Midlands. dried sand broadcast into the wet. 100% solids, high build coating. Explore our 1200 Gauge DPM membranes. Screwfix Select. Quarry tiles are installed on the solid concrete slab which is a good. rogerk101, Mar 13, 2020. Once dry apply two coats of Drybase® Liquid DPM as normal. g. Basically it was laid like this: timber frame built on top of garden dirt. CS Flooring. Most important thing here is to prime the bitumen and concrete repairs to get a good bond between tile adhesive and floors. 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. DPMs come in solid or liquid form, the latter being a practicable solution for a garage conversion. Standard sand & cement screed, dries at approx 1mm per day, depending on variables. 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. !! 2 Coats is good - 3 is better still. Withstands 98% relative humidity. VAT. £300. 30mm. where the ground was. Ideal for waterproofing structures, such as culverts, retaining. The bitumen is less than a millimetre thick - painted on by all accounts. The concrete floor is in a finished bathroom and from what I can find out online the bitumen is a bit messy to apply. I’m concerned about the self levelling compound for a garage , it’s hygroscopic and may get damp from the cold floor . weberfloor DPM is a two-component epoxy based chemical damp proof membrane that is capable of being applied in one coat, dependent upon the condition of the substrate and quality of workmanship to ensure full coverage is achieved at the required thickness. Walls appear to be dry & are mainly concrete block. Liquid Epoxy Damp Proof Membrane 5kg (Metal Tin) Rating: 100%. All surfaces must be mechanically sound, dry and clean, i. It is available in clear. The specific liquid DPM system will depend on the type of substrate or screed. Liquid Epoxy DPM - 2. DPM Membranes for Concrete Floors . Produced from Recycled Material. £2,000. Can be used as a damp proof membrane and as part of a designed structural waterproofing system. These can over time allow a build up. Liquid DPM can be applied to the base layer using trowels, rollers, squeegees or brushes. Ask the mods to move your thread to Flooring forum and see: dazlight Fri 29 aug 2020 for a specific response to a difficult surface. Bit confused with all the different products and combinations though. 60 – £ 110. DIYDave. Floors: Under/above. £100 - £600. Liquid Epoxy DPM - 2. Liquid screed. Pour the resin into a clean, dry bucket. Reaction score. Just spoke to uzin tech, I can use l3 gold 1st, then 414 rapid dpm, 280 primer and top with l3. Preparation is the main thing for the layers, and the substrate should be dry and clean. Best Penetrating Sealer: Ghostshield Siloxa-Tek Concrete Sealer. Ground bearing concrete floors - 1960s to 1990s. Our Liquid DPM (LVM Liquid Vapour Membrane Damp Proofing Paint) is a water-based ready-to-use waterproofing system supplied in an 5L tub. Property is mid 1960s, solid ground floor. 5. The advice I was given was a liquid DPM to be put down on the concrete floor and then I will build the floor structure on top, it will be in contact with the floor via packers but the bottom layer as such will be a square of plastic to avoid. Ready to use. ARDEX DPM 1 C. This Epoxy DPM is a two-component, solvent-free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete floors. I don't want to puddle any DPM into these holes but does anyone know the best way I can 'fill' them before putting down the DPM. #1. Thanks. Tiles came up very easily with zero bitumen attached. The DPM membranes are available in 4M x 25M rolls as well as a handy pack ideal for smaller jobs. This system reduces the need for intensive preparation and priming. Coverage. Liquid DPM 5L Rating: 100%. I have a fairly damp & uneven concrete floor, probably about 20 years old or more. RonaScreed DPM is also suitable for use prior to the application of tiles, soft flooring or wood. or self level to adhere to. To use an MVS, there must be a fully functioning structural DPM in. There is no damp proofing on the floor. Screwfix Select. Firstly, there was no need to use a liquid dpm if you used underlay with a built in vapour barrier. With a consistency similar to that of thick emulsion paint, it's suitable for use on solid floors, embedded timbers and walls. Country. Drybase 2mm Plaster Membrane Mesh (2m x 20m) - Low-Profile Plaster Membrane For Use on Damp Walls. . 30811761. Universal DPM allows immediate installation of moisture sensitive floor finishes onto damp concrete and screed. Screed above dpm. 30 Dec 2018. advise that you apply one coat of DPM. Once the DPM is applied you need a laytex screed, so your adhesive and karndean stick to it. Damp-proofing floors with damp-proof membranes is best done by professional contractors. 11 Aug 2022. RFC Epoxy Damp Proof Membrane is a professional 2-component applied surface primer for brushing onto concrete floors and fine concrete screeds. Browse damp-proof membrane products from Toolstation here. The DPM we use does not cancel all moisture out as this will end up. Then yes, prime with the primer that the manufacturer of your latex makes and recommends. High performance, over-banding sealing tape system for postsealing and waterproofing of construction. Durham. For moisture content and quality of substrates the guidelines of the wood floor manufacturer as well as standard construction rules must be ob-served. Applications. Capital Valley Plastics Ltd Damp-Proof Membrane Black 1200ga 25m x 4m (47163) (55) compare. A liquid-based damp-proof membrane will be suitable for our outdoor concrete subfloor exposed to weather elements. You are. Mix. concrete slab base DIYnot Forums. In certain situations, i. Where the product is laid onto a concrete surface wh. If you wanted to forgo the DPM, get some moisture readings with hygrometer or contact machine on the surface screed. Cement screed is the most commonly installed type of screed and averages around £12 per sqm. e. 4. 5m) It will have 50mm insulation boards on top of it, followed by 18mm/22mm. 0. • Weatherproof protection for walls, above-ground structures and foundations. 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. Apply wall. 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. Insulation sheets and steel laid on top of plastic membrane. Step-by-step guide for how to apply liquid DPM for concrete floors. e. 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. Description. 22 Feb 2007 #1. Hello all, We have a 10 year old downstairs shower set on the existing concrete floor of a 60's house. Thread starter rifraf74; Start date 22 Feb 2007; R. Clean quarry tiles. The damp proof paint is now ready to be. co. It might seem a bit unusual. If there was no dpm I would suggest a uniformal distribution across the whole floor. water leak from the toilet in to the floor. 2 coats liquid DPM. This is supported with netting tacked into place. It should accommodate 0mm to 5mm (or thereabouts) It will cover an area of 26m2 (4m x 6. Damp proof membrane paint is a liquid DPM that blocks the action of penetrating damp on floors, ceilings, and internal walls. Self-leveling concrete can be used as an underlayment for tile, carpet, or other floor coverings. I spoke to Everbuild/Sika and they were able to recommend a DPM paint and compound that would bond together, by priming the final layer of dpm. If a radon barrier is required, lay this over the grouting layer and extend it. 1200 Gauge DPMs should be used when a floor is direct to the ground. NO MORE DAMP EP40 Floor Primer is designed to soak into the substrate, block pores, improve adhesion and ensure an even, high quality finish. take account of possible differential movement. 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. Mapelastic AquaDefense provides a thin, continuous barrier to protect adjacent rooms and floors below from water damage. Accommodates Hygrometer readings up to 98% RH. Learn how to damp proof concrete floors with a liquid epoxy DPM, a remedial solution for existing or failed DPMs. Add to basket. I will then go about levelling the floor, adding in a liquid DPM, more levelling compound and vinyl tiles as the finish. Hi there. 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. I have noticed that the concrete floor isn't level (by about 5-10mm) and I want to fix it. 19. co. Ashbou10 Member. Holds back rising damp where a damp proof membrane is either missing or defective. Hardwearing – high abrasion resistance. [3] 4. The concrete slab was usually 100 to 125mm thick. Add to basket. A water based product would have taken a month to. Rapid Set Skim CoatRepairs, levels, and smooths concrete for applications. and then apply a second coat with kiln. 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. Rapid Set Skim CoatRepairs, levels, and smooths concrete for applications. applying 2 coats of Drybase® Liquid DPM. looking at using liquid dpm, and trying to work out what coverage one would get from a concrete base, looking on the i found this info below "DryBase Liquid-Applied DPM (previously known as DryBase Vapour Membrane) Package Content: ■1 X 5 litre container if Dry Base Coverage: Each 5 litre pack will cover up to. that is compatible with the self level cement i shall be using. Can also be used as a general purpose coating for surfaces subject to foot and light wheeled traffic. Once the floor is even it should be completely cleaned. Preparation is the main thing for the layers, and the substrate should be dry and clean. From below, installing insulation to improve the floor or as part of a basement insulation project is fairly straightforward. Acts as a bonding agent for plaster and curing agent for concrete. I would advise a single part flexi tile adhesive on top which will enable you to have stone, ceramic or porcelain tiles fixed. :thumbsup. These can over time allow a build up. - I'm wondering why the DPM is needed. 2. Damp proof membrane DPM – Designing Buildings. You can use Liquid Damp Proof Membrane with a glued down or floating floor. Yes, concrete is often exposed to the elements, which can cause it to crack. BBA certified - third party accreditation. rogerk101, Mar 13, 2020. UK Requirements for DPM Thickness. rogerk101 said: ↑. The use of damp. This also ensures that the curing process is gradual, which can prevent cracks from forming. Install bituminous DPM 2 coats. #1. It stops around 10mm away from the internal walls in all rooms. I wanted to self-level the floor using mapai ultimate leveller 1210 and Secrete Ulitmate Primer for adhesion. Drybase® Liquid-Applied DPM is a single-pack barrier coating for above ground use. Virtually solvent free liquid epoxy resin damp-proofer. Drybase Liquid-Applied Damp-Proof Membranes. 99. Primer to the surface and allow to cure. This can only normally be guaranteed if its an new build or extension and most houses have been sold, inherited etc. The products have excellent adhesion to damp concrete and can be installed fast and easily, even at lower temperatures. Please Note: Most wood floor manufacturers state a maximum substrate moisture content of 2 % CM (ca. 25 Feb 2006. It's brilliant stuff and the new glueless karndean can literally just sit on top. #1. Dri-wall DPC injection cream is the quick and versatile solution to effectively bring damp walls under control. It is available in black or white with a consistency similar to that of thick emulsion paint. ) chrysotile (white) asbestos fibres. Pumaprime DPM - a solvent-free liquid applied surface DPM for concrete floors. rogerk101 said: ↑. Unlikely to have any DPM. The chap who will be installing the wood floor has tested the concrete and the moisture readings are high; upto 85%. USES Commonly used in the following areas: Providing sandwich damp-proof membranes for floors. Self Leveling OverlayFind the overlay to meet your project's needs. Liquid Damp-Proofing Systems. Damp Proofing Concrete Floors With Liquid Membranes. Concrete dries at a certain pace so it can perform at its best over the longest time possible, a liquid DPM can help you speed up things but not already after two weeks! Perhaps in the last two weeks of the normal drying time. M. My questions are: Is there any. Contractor wants to paint Sika Primer MD on top of the self leveling compound. There are also dimpled underlay mats that disperse any moisture to the edges of the room but I have less experience of those. Don't know the repercussions of cutting into the. Still have moisture coming through (I think), and after further reading, 50mm of concrete is required to 'hold it down' and stop penetration. Ground-bearing concrete floor slabs should be protected against ground moisture by providing a continuous damp proof membrane (DPM). The old floor tiles do contain a small amount of asbestos ( Marley tiles etc. Property is mid 1960s, solid ground floor. 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. free from dirt, dust, grease or other contamination or coating. We have had a full structural survey done which highlighted damp at the ground floor level. Jul 13, 2011. The water pipe connected to the sink tap or the pipe taking waste water away from the sink (both of them are in the wall) is leaking and this water is going to the floor down the wall and is saturating the floor. Our easy to install range is available in various thicknesses up to 0. 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. Ground bearing concrete floors - 1960s to 1990s. 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. In order to make sure the. Grinding the old bitumen from the concrete floor. Lancashire. Vapour barriers. 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. For moisture content and quality of substrates the guidelines of the wood floor manufacturer as well as standard construction rules must be ob-served. LAC is typically used as a damp proof membrane to ground floors, as a vapour barrier behind cladding and for tanking of basements. Once applied, it cures to form a flexible and elastic membrane that. First scrape up as much of the residue as possible apply a cote of Ardex. The plan is to get an concrete sub-floor so that things will adhere to it properly then to go with Arditex NA, then the DPM, and then. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. 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. (3 Reviews) £22. Add to basket. How to apply Damp Proof Paint. 00 Ex VAT. 4M X 20M 1000G Clear Heavy Duty Polythene Plastic Building Dust Rubble Sheet DIY. Hi All come across this forum and would really appreciate some assistance. Walls are not the only part of a building that can suffer from damp problems. 5 Litre Containers, in Black colour only. I am looking for some advise about laying a SLC with a liquid DPM. Thanks for the response. Liquid damp proof membrane For existing concrete floors, you can also apply a liquid damp proof membrane, which provides a retrospective damp proof membrane. How to do Damp Proof Membrane of your sub-floor. Chimney damp proof course (labour and scaffolding not included) £75 per roll. Plenty of cement/latex/fibre based. Applications. £36. 98/3454), high performance, brush applied damp proofing emulsion containing synthetic rubber latex which provides a seamless waterproof and vapour resistant, black elastomeric membrane. Rob_bv, Nov 11, 2020. Ensure the top surface of the beam and block structure is levelled with grout or a levelling topping. jay said: As above you may find it difficult to find a tile adh manufacture who will grantee their product over the membrane. #2. £. ★★★★★ ★★★★★ ( 3 ) Product code: 47327. Liquid DPM 5L. 3. F Ball DPM F77 Liquid DPM on concrete floor. Hold up the low end of the level until the bubble is in the middle and then measure the gap between the floor and the raised end of the level. 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. Standard sand & cement screed, dries at approx 1mm per day, depending on variables. I have attached a photo after removal. Answered 27th Feb 2012. Liquid dpm/levelling compound. Visqueen EcoMembrane DPM. It can cost over £90 per m². £ 51. Obviously if its a surface DPM you dont have a few inches of concrete to weigh it down. Description. Up to 10 years warranty on selected items. Tile brands such as Bal, Ardex, Tops, etc all sell tile primers with fancy names ! Can simply use SBR diluted, follow instructions on bottle, likely to be 1-4 water, then apply 2 coats. This is supported with netting tacked into place. 6 m2 1. In a house with a DPM already installed you will have a few inches of concrete to weigh the dpm sheet down. Call us on 302 244 0179 or submit an enquiry for contact information of contractors in your area. Add to basket. liquid DPM - onto the original hard floor. Once dry, Arditex NA, a latex based self levelling compound, was applied. A liquid-applied DPM (damp proof membrane) is a simple solution and an excellent way to damp proof a concrete floor. Can be over painted after 16 hours with most types of floor coatings. Chemical damp proofing cost. A damp-proof membrane is a layer of material usually laid below concrete floors during construction. Country. Use 1000 gauge or thicker – ideal for this is the polyethylene use for the DPM under your concrete subfloor. Liquid damp proof membrane (water based bitumen) applied in several coats directly to the concrete floor with a roller or brush. Manufacturers will be able to advise. Good afternoon. Our Waterproof Blue can be used in showers, bathrooms, wet rooms, basements and other areas of your building that need to be protected from excessive. The DPM may be above or below the concrete and continuous with DPC in walls and piers (See Figure 1). It is available in black or white with a consistency similar to that of thick emulsion paint. I'm looking to tile the floor, which currently has parquet on it, bonded to the concrete with a bitumen adhesive. #2. 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. 2. 5kg. 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. The black "rubbery stuff" could well be a layer of bitumen which was used as a form of DPM in houses from around (AFAIK) WWI period or a little earlier up until the 1970s in some areas. #5. External wet concrete should be allowed to dry thoroughly or sealed with one coat of ARDEX HydrEpoxy WPM 300 as above. Ready for your floor finish. Mapeproof One Coat is used on cementitious floors with residual or constructional moisture levels of above 75% RH and below 97% relative humidity prior to the installation of resilient floor coverings. Personally would look for breathable systems like they use a lot in Italy where the buildings are often very old. Can I assume we have already breached the. 186. You have maybe 3mm of smoothing compound hence it can be pushed up and fail. I need to put down a damp proof membrane and self levelling compound on top of that. DAMP BARRIER PAINT - A highly advanced styrene-butadiene rubber (SBR), liquid applied membrane paint. Epoxy resin damp-proof membrane . 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. The DPM above concrete should be protected by either screed or a floor finish unless it. I know that involves removing the skirting, butbthen you can chip off a strip of plaster if it goes down to the concrete floor. The VPU-155 S is a versatile primer easy to apply by either trowel. The wall is now down and its time to level off the floors. T ·Öà 4. It is available in red or yellow, in 5 or 10kg units, and has a fast curing time of 12 hours minimum. 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. Shake the liquid DPM container well before use and pour the product into a mixing tray. 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. And yes you can level the floor after. Like 2. 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. Low trade prices. DPM is Laid and Sealed! » Roselea. 5 % Tramex). Our Liquid DPM paint that can be applied above and below screeds to provide an elastic damp proof membrane for floors. For mastic asphalt, wood block and strip, and some textile floor coverings, a non-slip finish is appropriate, while thin sheet. The DPM should: have sealed laps of at least 300mm wide. 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. DPC is located around the perimeter of the walls whist a DPM is hidden under the floor slab or screed. Synthaprufe Original exhibits low odour, with exceptional flexibility and crack resistance, even at low. We have had a damp survey and it is confirmed that there is no issue with rising damp. Ideal for general waterproofing and fixing. Can be used where a structural DPM is not present or is ineffective. How to install a liquid damp proof membrane. Location. Features. Stack Exchange Network. In contrast, a vapour barrier (VB) is fitted on the warm side of walls or roofs to stop interstitial condensation. Brian McNaughton & Son Ltd. Before applying the damp proof paint, stir the contents of the bucket well. You can lay a fast track DPM (damp proof membrane) if your new concrete has had 2/3 weeks drying time. Traditional screeds. 16. 2 Surface finish Screeds The surface of the screed should be finished according to the type of wearing surface or flooring that is to be laid. A small risk of them blowing if moisture is excessive though. But too much water will extend the drying time and. Some of the floor has vinyl tiles and where the old units were there is bare concrete. I'm looking for opinions on the best self leveling screed to use on my slightly wonky concrete garage floor. apply two coats of Drybase® Liquid-Applied DPM as normal. Clear. 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. 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. The first answer is to paint the floor with SBR and neat cement in a 1:1 ratio then any cementitious will stick to that and it’s waterproof / condensation proof. Using a spirit level to check the level of a floor and measure thickness of screed required. It can also be lapped up walls to the DPC before the application of floor and wall coverings.