Do you have any damp problems currently?. 22 Feb 2007 #1 11,422. Impatience and damp concrete subfloors. 07545421044. Can also be used as a general purpose coating for surfaces subject to foot and light wheeled traffic. Prepare substrate. In the world of construction and design, concrete floors are a popular choice for many. DIYDave. DPC is located around the perimeter of the walls whist a DPM is hidden under the floor slab or screed. rifraf74. Self levelling compound. Can be used where a structural DPM is not present or is ineffective. Solid wood should be laid on top of 3/4 ply first as differing. 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. Plastic membrane laid with excess along the sides for lapping later. This Epoxy DPM is a two-component, solvent free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete floors. Drybase Liquid-Applied DPM is a single-pack barrier coating that is supplied ready to use. I have attached a photo after removal. Like x 1; List; merit Well-Known Member. Country. water will be likely to collect between the DPM and the old floor. However, should there be a particularly high water table/pressure and/or a particularly porous floor, two coats. For a self-levelling screed a system such as Flowcrete UK’s Hydraseal would be used. The problem is by the time we insulate, screed and lay the flooring we will be above the dpc& membrane level by 4 inches. The use of damp. Jul 13, 2011. #5. With a consistency similar to that of thick emulsion paint, it's suitable for use on solid floors, embedded timbers and walls. Rapid Set Skim CoatRepairs, levels, and smooths concrete for applications. 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. starstarstarstarstar. A liquid-based damp-proof membrane will be suitable for our outdoor concrete subfloor exposed to weather elements. CS Flooring. When mixed thickly it can be used vertically for surfaces such as cellar walls and storage tanks. 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. If the concrete floor is less than 5mm out of level, you can use a self-levelling flooring compound to even out the surface. To remove this type of asbestos containing floor. More than two applications are needed for the best results. Browse damp-proof membrane products from Toolstation here. In order to make sure the. Add to Basket. - lay a liquid dpm. Liquid DPMs gave the best protection but were more expensive. 00 € 60. 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. I've got to raise the floor up slightly with a deep base leveling compound. I have attached a photo after removal. Hi. 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. . It is available in black or white with a consistency similar to that of thick emulsion paint. 1, your new concrete will need drying time, approx 1 month for every inch, then a DPM is required. Quarry tiles are installed on the solid concrete slab which is a good. Broom Overlay Mix 6000 PSIAdd water and mix - Grey or white. 6 m2 1. € 80. £51. If the coating is not for your final decorative surface. I would think a strip out and start again would be your best option, you should consider where/why there is water evident before. My plan so far was: - fix up any cracks and dodgy bits in the current concrete floor. Hadley General builder/plasterer. The only way to tell properly, is to carry out a proper test. Add to basket. Learn how to damp proof concrete floors with a liquid epoxy DPM, a remedial solution for existing or failed DPMs. @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. Developed to suppress residual construction moisture in cementitious subfloors including power floated concrete and sand/cement screeds. or self level to adhere to. This can. IN CONCRETE SUBFLOORS British Standards 8201:2011 recom-mends using relative humidity (RH) testing of concrete sub floors. It might seem a bit. Suitable for internal and external use. VAT. 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. Jul 13, 2011. 18 Dec 2013. 7,856 1,619 113. Looking lay a liquid dpm in the cellar floor followed by a self levelling compound as it uneven. Drybase® Liquid-Applied DPM is a single-pack barrier coating for above ground use. We are in the process of having an extension built. High performance, over-banding sealing tape system for postsealing and waterproofing of construction. 8 Apr 2013. A suitable gauge damp proof membrane (DPM) and thermal insulation must be provided. Using a spirit level to check the level of a floor and measure thickness of screed required. 99 Inc Vat. Unfortunately the concrete floor is not levelled and is about 2-3 cm lower on on side of the room plus there are other uneven parts of the floor. 30 Jan 2022. Concrete Cured for min. It might seem a bit unusual. There is no damp proofing on the floor. Description. 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?A liquid DPM such as Bostik Cempolatex Moisture Suppressant must be applied in two coats. 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,. • Solvent Free, Low Odour. I want to avoid digging it up if I can. Arcon have a range of liquid applied damp proof coatings available to buy with no minimum order quantities. 11 Aug 2022. You may need to apply a damp-proof epoxy coating to the concrete before laying a new floor. Manchester • Member since 5 Jun 2015 • 64 jobs, 95% positive feedback. It is suitable for use as a one or two application depending on the moisture content of the floor. Description. My ground floor is a partial basement formed of high density block work with the cavity filled with waterproof concrete to mid height and liquid DPM below ground level. Hi, I have painted a bitumen based liquid DPM (not the 2 part epoxy types that most other posts are about) on my damp concrete floor (1950s bungalow with no DPM and on a hill with possibly high water table). • Weatherproof protection for walls, above-ground structures and foundations. Mapelastic AquaDefense is a premixed, advanced liquid-rubber, extremely quick-drying waterproofing and crack-isolation membrane for installation under ceramic tile or stone in residential, commercial and industrial environments. An MVS, is a moisture vapour suppressant that is used on floors, usually concrete or cement-based screeds with up to 95% RH. 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. You should always begin at the far point of the floor to ensure you do not need to walk over it after application. Standard sand & cement screed, dries at approx 1mm per day, depending on variables. F Ball DPM F77 Liquid DPM on concrete floor. free from dirt, dust, grease or other contamination or coating. 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. Install bituminous DPM 2 coats. Description. Then lay a self leveller on top of this before tiling over that. Bostik Screedmaster Rapid DPM is a ready for use; one part, water-based damp proof membrane. Let’s take a look at how these membranes function. A decent fitter will test the slab for you before fitting anyway. An ARDEX Damp Proof Membrane will protect the floorcovering. The guy doing it tried to compensate by using more adhesive and most of the. Virtually solvent free liquid epoxy resin damp-proofer. It is a highly effective membrane designed to be easy and quick to paint on (unlike others on the market). co. Hardcores varied in quality - many have since proved to be totally unsuitable. Liquid screed. We have purchased a 4 bed detached house built in the 1950's. OK stuck - Liquid DPM, concrete floor and a pipe. Dust, dirt, oil, grease and other contaminants should be completely removed. 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. Screwfix Select. We have had a damp survey and it is confirmed that there is no issue with rising damp. This Epoxy DPM is a two-component, solvent-free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete floors. For a self-levelling screed a system such as Flowcrete UK’s Hydraseal would be used. 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. 186. The report says there is no DPM. Our Epoxy Damp Proof Membrane is a two-component, solvent free, low odour epoxy resin membrane that is tolerant of residual moisture in concrete floors. Small hole dug through 2" soft sandy concrete to reveal hardcore and soil. The affected rooms are a small kitchen and lounge. DIYDave. Browse our selection of damp roof membrane (DPC) for use on concrete to prevent moisture from seeping through layers of flooring. attack but is designed to be over-coated with other resin finishes. The bitumen is less than a millimetre thick - painted on by all accounts. Can be used where a structural DPM is not present or is ineffective. I have removed all the old layers of old flooring down to the concrete. Only problem is the thickness of the screed (max 4mm unless you bulk it out with sand?). Ground bearing concrete floors - 1960s to 1990s. richel7. Step-by-step: how to apply liquid dpm for concrete floors If skirting boards can’t be removed, protect them with masking tape. Can I assume we have already breached the. For example, if there is a significant problem with damp rising through your quarry tile. DynamiteMatt; 17 Dec 2013; Floors, Stairs and Lofts; Replies 1 Views 1K. € 80. Curing concrete is a process that should be gradual in order to avoid cracks. I am buying a property and a survey has shown that the solid ground floor (likely concrete slab) is damp in some parts and is also uneven. 2 coats SBR. Holds back rising damp on new or old concrete and sand and cement floors. The Wickes liquid DPM has been recommended before, since they only seems to have bitumen based liquid DPB I presume that's the one. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. Ready to use. concrete slab base DIYnot Forums. You can use Liquid Damp Proof Membrane with a glued down or floating floor. Drybase 2mm Plaster Membrane Mesh (2m x 20m) - Low-Profile Plaster Membrane For Use on Damp Walls. Drybase Liquid-Applied Damp-Proof Membrane High-strength damp-proof coating for a wide variety of applications. A damp-proof membrane is a layer of material usually laid below concrete floors during construction. Capital Valley Plastics Ltd Damp-Proof Membrane Black 1200ga 25m x 4m (47163) (55) compare. When stripping the bathroom, the area under the bath tub was bare concrete, lower than the rest of the "black" floor throughout the property. Adheres to saturated concrete even at lower temperatures. 4M X 20M 1000G Clear Heavy Duty Polythene Plastic Building Dust Rubble Sheet DIY. Install bituminous DPM 2 coats. To be honest it’s worth having some sort of moisture suppressant put down just to make sure. Drill then fix the damp proofing membrane to the walls ensuring a tight fit. Liquid DPM onto the concrete slab, then lay insulation above this and then lay electric mat underfloor heating on top of this. Step-by-step guide for how to apply liquid DPM for concrete floors. Walls appear to be dry & are mainly concrete block. 00 Ex VAT. Is there a suitable, less messy alternative perhaps?DandDflooring. 0. Made from recycled materials. Liquid Epoxy DPM . Liquid epoxy DPMs are ideal for concrete floors, such as garages, where the original damp proof membrane is missing or has broken down. marginally exceeds 70%, a liquid damp proof membrane (DPM) is required. A water based product would have taken a month to. Reaction score. This is supported with netting tacked into place. Answered 27th Feb 2012. £2,000. About. 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. Please Note: Most wood floor manufacturers state a maximum substrate moisture content of 2 % CM (ca. Polycote DPM Primer is a superb twin pack high-performance epoxy coating that is designed to penetrate into the concrete and completely lock the surface from rising damp. other floor coverings including tiles, vinyl, wood and ca. • 5L tin offers coverage of approximately 6. I'm hesitant to lay self levelling. Ideal for waterproofing structures, such as culverts, retaining. Can be used as a damp proof membrane and as part of a designed structural waterproofing system. T ·Öà 4. weberfloor DPM can be applied on substrates such as concrete and cement-based levelling compounds. Drybase 2mm Plaster Membrane Mesh (2m x 20m) - Low-Profile. The report says there is no DPM. Most important thing here is to prime the bitumen and concrete repairs to get a good bond between tile adhesive and floors. You have a choice. 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. It helps to prevent damp and moisture from entering the building’s structure and interior. free from dirt, dust, grease or other contamination or coating. This can include timber floors, tiles, laminate flooring and carpet. Ready to use. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint; Rising Damp Treatment; Water Repellents; Vapour Control Layers; Internal Waterproofing;. rogerk101 said: ↑. Step-by-step guide for how to apply liquid DPM for concrete floors. Grinding the old bitumen from the concrete floor. These can over time allow a build up. If you notice a gap between the straightedge and the floor, your floor is dipping in that area. Laitance must also be removed from concrete. The product is applied in two coats. Hi there. High performance, over-banding sealing tape system for postsealing and waterproofing of construction. How to do Damp Proof Membrane of your sub-floor. Generally speaking, when using a liquid DPM you apply your substrate by pouring it onto the floor area to be treated, and then trowel, paint, or roller it in. These products are relatively simple to apply, although significant surface preparation work is usually required. USES Commonly used in the following areas: Providing sandwich damp-proof membranes for floors. In contrast, a vapour barrier (VB) is fitted on the warm side of walls or roofs to stop interstitial condensation. Quite likely there is no DPM underneath. It is available in clear. 2. 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. Could use sand/cement mix if ‘craters’ are. 30mm. If the coating is not for your final decorative surface. Tanking and waterproof render up to a metre high will help, alternatively, do what they did 100 years ago. NO MORE DAMP EP40 Floor Primer is designed to soak into the substrate, block pores, improve adhesion and ensure an even, high quality finish. ) 4. With a consistency similar to that of thick emulsion paint, it's suitable for use on solid floors, embedded timbers and walls. uk and we will be happy to answer any questions and help find the right products to suit your needs. The type of coating is chosen, depending on the usage of the floor. Liquid Screeding. Drybase Liquid-Applied Damp-Proof Membranes. We have had a full structural survey done which highlighted damp at the ground floor level. Should take 3 days, tops - day 1 to empty the garage, scrub and clean the floor, and let dry (whack a fan heater in there to help). Step-by-step guide for how to apply liquid DPM for concrete floors. Ashbou10 Member. Can be over painted after 16 hours with most types of floor coatings. A typical concrete floor build up that incorporates a VCL would be as follows. If the DPM Primer is being used. Sikalastic®-800 HA is a two component, solvent free, highly elastic, virtually odourless polyurea based waterproofing membrane. This prevents moisture from the screed attacking the wood flooring and ultimately ruining it. How to apply Damp Proof Paint. 186. the wooden floor is laid. A vapour barrier, on the other hand, is a damp proofing product attached to a wood floor underlay to reduce moisture passage. 00 Ex VAT. This method is very costly and extremely invasive. The easy application is carried out in two coats with a brush or roller. Some parts of it are completely dry but other parts of it are still very tacky. 21 May 2010. Screwfix Select. By digging to locate the initial leak we have gone down 3. I've used the two part resin on a damp concrete floor in an old Victorian place. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. Joined 22 Jan 2007 Messages 15 Reaction score 0 Country. whats wrong with screeding up the floor then using a liquid dpm which will stop any damp also then fully stick down the. It is also suitable for application on damp surfaces, such as sand/cement and cement floors subject to rising damp or containing residual construction moisture. Add to Basket. You are. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint; Rising Damp Treatment; Water Repellents; Vapour Control Layers; Internal Waterproofing;. He has suggesting using ARDEX DPM 1C to protect the floorboards. The concrete floor might only be 6 years old but theres no way of knowing if the DPM underneath was. wet coating. This enables earlier access onto the floor for the application of screeds, coatings and other floor coverings including tiles, vinyl, wood and carpets. 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. Many damp-proof floor coatings are used directly on the concrete floor surface with a roller or brush. To apply liquid epoxy DPM correctly, build up multiple coats, always follow manufacturer's recommendations and ensure that the concrete surface is free of debris or organic matter. 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. Suitable for. My questions are: Is there any reason to use a roll of DPM vs a liquid. Hello all, We have a 10 year old downstairs shower set on the existing concrete floor of a 60's house. I was only wondering about the waterproof PVA really. Now, let’s clarify some things concerning product. Chemical damp proofing cost. • Protects walls and floors from water ingress and dampness. I decided to lay down a laminate flooring over the vinyl tiles/concrete with chipboard style tile underlay. These black floor DPMs are designed for use in concrete slabs to protect against moisture. Apply the first coat in one direction, ensuring that the material is worked well into the substrate. 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. Liquid DPM can be applied to the base layer using trowels, rollers, squeegees or brushes. GaryTheTiler said: Sound like you don't have a damp membrane under the concrete or a leaky pipe under the floor perhaps. 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. Damp survey. Protection up to 3m head of water. Thanks. 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. liquid dpm and self levelling compound. A water based product would have taken a month to. The floor was vacuumed before applying Aredx DPM IC, an epoxy liquid Damp Proof Membrane (DPM). The specific liquid DPM system will depend on the type of substrate or screed. Use 1000 gauge or thicker – ideal for this is the polyethylene use for the DPM under your concrete subfloor. The potential issue that came to mind is, if, the concrete floor is absorbing moisture from Sub-soil for instance, ( also check for the presence of. 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. Where oil and grease are present it should be treated with a degreasing. Liquid DPM is a substance used to create a waterproof layer on the walls and floors in your building to help stop moisture and rising damp from penetrating the foundation and causing damp issues. 24-month shelf life. DAMP BARRIER PAINT - A highly advanced styrene-butadiene rubber (SBR), liquid applied membrane paint. How to Damp proof a floor and walls using synthaproof as a damp proof membrane is shown in this tutorial. Speak with a technical adviser if unsure. Using this latex based damp proof paint as a damp p. Liquid DPM is a substance used to create a waterproof layer on the walls and floors in your building to help stop moisture and rising damp from penetrating the foundation and causing damp issues. For solid wood the absolute maximum moisture level in concrete is 4%, ideally it should be nearer to 3% - your flooring manufacturer should have issued Tech Info sheets which cover their requirements in detail. It stops around 10mm away from the internal walls in all rooms. The schedule of works from the loss adjuster (provided by Blyth Group, contractor), says the following regarding the floor: Apply self-levelling compound. CONCRETE FLOOR 8 9 Our refurbishment system is ideal for older properties with damp or contaminated floors. 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. 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. may then be applied. 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. a) 3 coats of synthaprufe liquid DPM to wall running 1 course below DPC and 2 courses above. I would advise a single part flexi tile adhesive on top which will enable you to have stone, ceramic or porcelain tiles fixed. 7 Latest Foundation ideas slab foundation, concrete, foundation. A: A damp proof membrane (DPM) is a thick plastic sheet used as a waterproof barrier between a concrete subfloor and wood floor. DPM Membranes for Concrete Floors ; Damp Proof Course; Damp Proof Paint;. Jan 20, 2016. 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. The DPM will be laid first, usually as a liquid product 'painted or trowelled' onto the concrete surface, then the screed laid over that. Liquid DPM 5L. Option 3 – Apply a liquid DPM. . You also mentioned that there are vinyl tiles over the floor. Drybase 2mm Plaster Membrane Mesh (2m x 20m) - Low-Profile Plaster Membrane For Use on Damp Walls. #5. The edges of the DPM should have been flopped up the walls, say, 300mm and later trimmed back to suit. 2,940. If a DPM has failed or perhaps was never installed in the first place, the features. However, there are a couple of small holes (about 4cm deep, 2 x 3cm width/length) in the concrete base. 30811761. Features. 2,940. 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. Once dry, Arditex NA, a latex based self levelling compound, was applied. £. 1200 Gauge DPMs should be used when a floor is direct to the ground. Best Glossy Sealer: Black Diamond Stoneworks Stone Sealer. You can lay a fast track DPM (damp proof membrane) if your new concrete has had 2/3 weeks drying time. If you have a engineered wood floor and your new slab is dry below 75%rh then technically you don’t need one. Download it for free and learn how to. 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? A liquid DPM such as Bostik Cempolatex Moisture Suppressant must be applied in two coats. 0 square metres per litre and allowed to cure overnight. Tiles came up very easily with zero bitumen attached. Drybase Liquid-Applied DPM is water-. E. Vapour barriers. Location. 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. Clear. so what liquid dpm should i use. jay said: As above you may find it difficult to find a tile adh manufacture who will grantee their product over the membrane.