Upon curing, it forms a thick, seamless, durable membrane thus offering ultimate waterproofing. At Selco, we stock a wide selection of waterproofing equipment to ensure your tiling installations are fully protected. The kit is easy to use and requires no specialist equipment, allowing you to have a measured injection of damp proof cream every time. (16 products) Damp-proof membrane is used to protect buildings from moisture by creating a damp resistant barrier. Easy and fast installation to foundation walls. Pre-applied waterproofing membrane conforming to the requirements of BS EN 13967:2004 and BS 8102:2009. Damp Proofing View Category Water-proofing & Gas Control View Category Structural Repairs View Category Timber Treatments. Wickes range of Engineering and Facing bricks comply with British Standard requirements. condensation, rising damp, penetrating damp, hygroscopic damp etc…. 6mm Black. We've got stacks of stock at exclusive trade prices. Damp-Proof Membranes (DPM) play a critical role in modern construction by acting as barriers to moisture transmission from the ground into the building fabric. Show: To prevent moisture and rising damp, browse through our range of Damp Proof Membrane (DPM) available at unbeatable trade prices today. If your property is already suffering with damp, you will need to resolve the underlying issues first. It’s a BBM-certified DPM that’s. Novia Methane Pro Damp Proof Membrane Kit - 80m2 £300. This robust crate creates a structural void in the ground to allow water to flow in from surrounding subsoil and helps to alleviate flooding. 5m (L x W) is manufactured using a unique thermal bonding process and has excellent filtration properties. The surface of the slab should be smooth, flat and free from projections. com Product code: 47327 Dryrod Damp-Proofing Rods Clear £104. £178. Highly durable barrier prevents the ingress of harmful, naturally occurring Radon gas. View all: Radbar Membranes & Barriers. The product is easy to lay and comes in multi-fold rolls. These are suitable for use on contaminated land sites, offering protection against the ingress of ground gas and vapours ensuring a safe, cost effective and value engineered solution against contamination bespoke to your project requirements. All membranous pond liner (Polyetheline, tarp, etc. 1200ga DPM Black Damp Proof Membrane 4m x 25m. Polyproof Polythene Dampcourse Black 380mm x 30m x 500um. If you need help with a specification, our team are here to help. It is designed for use in solid concrete floors to protect buildings from moisture, rising water and damp from the ground. Exterior waterproofing a basement costs $10,000 to $15,000. A Liquid Epoxy Damp Proof Membrane (DPM) is often used as a remedial solution where an existing DPM has failed or was never installed. Damp proofing costs. Requirements in the UK. Our 2000 Gauge damp-proof membrane, which is also BBA Approved, is supplied in 4m x 12. 7 out of 5 stars 475Tyvek ® Supro is a durable, water resistant membrane that is reinforced with a laminated polypropylene nonwoven. . The silane then lines the capillaries in the substrate to create a water repellent barrier. Economy Skeleton Gun, 9" Extension Nozzle, 1 x Pair of Green Nitrile Gloves. All types of floor coverings can be installed on top of a plastic membrane. Products in Damp-Proof Membranes. 80. Solcourse DPM Membrane complies with the relevant building regulations and is BBA approved. - Accredited by the British Board of Agrement (BBA: 94/3009) - Comprehensive range to satisfy most domestic and low-rise buildings. Damp Proof Membrane - DPM - 4x25m Roll. They provide excellent flexibility and ease of installation in New Zealand's varying climates. Dryzone Damp Proof Course Cream Foil Cartridge - 600ml. 25m. Weather and waterproofing tape will protect equipment, fixings, walls and wood from the damage caused by adverse exposure to the elements. Fosroc offers a comprehensive range of high performance high quality, construction products. DPM Sheeting is used as a DPC (damp-proof course), which is designed to prevent moisture reaching a concrete slab. 99 per m² £118. By their nature, masonry walls are not waterproof. Blue 1. 10 x 2 Metres Of Aqua Channel Drain. There is some damp proof course that makes damp proofing problems could not occur again. It has excellent adhesion to most. Torch On Sanded Underlay SBS Felt 1000mm x 16m Roll. 3. 15 m2 1. £52. Damp Proof Courses. From standard flooring underlay and underfloor heating underlay to polystyrene insulating panels designed to eliminate considerable unevenness in the subfloor, all your floor underlay needs are taken care of at Selco. Read on or choose from the contents below to find out. Damp proof bridging is a problem usually associated with new buildings and is caused by: Filling in the cavity above the level of the damp proof course e. Damp proofing only stops soil moisture from coming through the wall. This damp proofing option is a specially designed plastic that you lay on the concrete and trim as needed to cover the entire floor. Damp proofing in construction is a type of moisture control applied to building walls and floors to prevent moisture from passing into the interior spaces. It is a membrane layer which sits between the concrete and the underlayment, but it is not a liquid. 7x more water resistant than regular primer. Damp proofing 8, Damp-proofing barriers – tanking in association with chemical damp-proofing courses, Property Care Association, 2007; Damp proofing 10, Hygroscopic salts and rising dampness, Property Care Association, 2007; RIBA CPD . Coverage: 0. Newton Waterproofing offers two types of DPM: the physical Dampsafe 802-DPM sheet membrane, and the liquid-applied Epoxy DPM. Where insulation is concerned, fitting a damp-proof membrane is important, as it safeguards the insulating properties of the material. The purpose of damp proof membranes. The membrane is also used to. Add for Delivery. 2. March 2010 Specification 1050 (I) Page 2 of 2 Manitoba Infrastructure and Transportation 6. The membrane provides a physical barrier between the existing damp wall and the new finish. While damp proof membranes are used under floors to stop damp rising up into the building, vapour control membranes prevent moisture from inside the building. Overview. The size of the basement, interior vs. It offers protection against a variety of problems associated with moisture ingress ranging from visible damp patches on walls and floors to salt damage, rot and mould. Every job is different and has to be assessed by a damp proofing professional, but a rule of thumb is to budget about $300 per metre. Insulate and use a vapour membrane where necessary. However challenging your project, Think Visqueen. There may not be a course or membrane, gaps in the course or membrane, or the ground may be higher. This provide long term. The damp-proof membranes used during construction of concrete floors are often thin, and can easily become torn before they are laid. Get Waterproofing Products at Trade-Only Prices. Virtually solvent free liquid epoxy resin damp-proofer. Cut the damp proof membrane to fit the size of the wall section being treated. Our range of waterproofing equipment covers everything. 25 Ex VAT £239. View Product. 1. If you have any queries in the meantime, please do not hesitate to contact our office on 0333 202. For a complete building envelope solution to liquid waterproofing membranes, ARDEX is your best. Dampproofing is intended to keep out soil moisture while waterproofing keeps out both moisture and liquid water. Check your local branch stock. 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,. 99. Whilst this may stop damp showing through for a limited amount of time, it is not a long-term solution. It’s installed beneath concrete flooring, walls, and other structures, such as sloping roofs with low water permeability courses. indb 76 5/31/2018 4:02:57 PM Laying of under surface membrane (USB) or damp proof. This Waterproof Floor Membrane is quick and easy to apply. If a faulty damp proof course is the cause of rising damp in your property, it is important to install a remedial damp proof course as soon as possible. 1. Cut the damp proof membrane to fit the size of the wall section being treated. Item Code: 405680952. 88 Inc VAT. Once the source of the damp problem has been identified, make sound any structural defects and remove any internal finishes so the wall is back to the original substrate. Drybase 2mm Plaster Membrane Mesh (2m x 20m) - Low-Profile Plaster Membrane For Use on Damp Walls. 3. exterior sealing,. Novia 1600G Radon Barrier is an approved blown polythene material suitable for use as a radon barrier damp proof membrane in solid concrete ground floors that are not subject to hydro-static pressure. Dryrod Damp Proof Course Rods - 180mm Pack of 10. Get unlimited free shipping in 164+ countries with desertcart Plus membership. 4. Damp-Proof. BBA Damp Proof Membrane 25m x 4m Clear (250mu) ★★★★★ ★★★★★ £79. 1 The membranes must be protected against damage by the placement of a protection material between the membranes and the granular fill. Rising damp occurs when groundwater rises up through walls, floors and masonry. Note: A range of polyethylene films can be used, including black film and orange film, provided they satisfy the requirements for high impact. A thinner sheet might violate building codes and be a costly repair, so 1200 is always suggested. A damp-proof membrane (DPM) is a membrane material applied to prevent moisture. Damp Proofing Roof Flashing Weatherproofing Tapes. The studded side goes against the wall, leaving a small gap behind the. When dry, lay papera sand/cement or concrete screed of at least 50mm thickness over the Bostik Aquaprufe Damp-Proofer & Waterproofer membrane. This product is made from a minimum of 90% recycled post-consumer waste plastic. 3. Ultracure is supported by BBA Certification Certificate No: 02/3961. Thickness: 1200ga. Easy to Use. We got a building survey and there were some signs of rising damp and recommended a damp proof course being injected. Firstly, it. We have the capability to provide you with any type of polyurethane membrane you need for your job, including: damp proofing membranes, anti-graffiti membranes, air barriers and water barriers. Delivery Free delivery available (restrictions apply) Log in to buy. Up to 10 years warranty on selected items. Just remember that if you opt for this second option your head space will be reduced. £65. Add to trolley. 30mm. The average cost of basement waterproofing ranges from $2,300 to $7,575, with a national average of $4,920. Our expert team are ready to offer you the very best solution for waterproofing, gas and damp systems with our extensive product range. £68. Damp proofing is an essential aspect of most building and construction projects, designed to prevent the ingress of moisture into interior spaces. 96 5. When dampness occurs in floors, issues such as insulation impairment, electrical damage and surface damage can occur. At Polyguard, we offer a superior solution to below-grade waterproofing and vapor barrier/retarders, to protect against water and contaminant entry due to cracks in the concrete slabs and foundation walls. Geotextile membrane are large sheets of fabric that are used in many outdoor landscaping drainage applications, such as soil separation, ground reinforcement, soakaways, and land drains. (no customer review) Add a review. BBA Damp Proof Membrane Handi-Pak Blue 5m x 4m (300mu) Keep indoor and outdoor surfaces waterproof with this Everbuild Black Jack damp proof membrane. BBA Damp Proof Membrane Handi-Pak Black 3m x 4m (300mu) ★★★★★ ★★★★★ £13. It is made from recycled materials, and our damp proof membranes meet the minimum requirements of building regulations and they come in either. Save time and use our Click & Collect service and we’ll have your order ready in just 30 minutes. Let’s take a look at how these membranes function. Asian Paints SmartCare Damp Proof is a fiber reinforced elastomeric liquid applied waterproofing membrane for waterproofing of flat and sloping roofs. 42 [2021] Backfilling and Drainage 10. Hardcores varied in quality - many have since proved to be totally unsuitable. We would like to show you a description here but the site won’t allow us. Solid Floor Damp-Proof Membrane . Book a survey today or get in touch on 0208 535 7536 for. If no DPM is present, apply 2 coats of Sika® MiniPack Waterproofing slurry across the solid floor for 50 –100 mm and up the wall to overlap with the DPC. Damp-proof, damp-proof course membranes, damp: list of seminars, online learning,. Apply reinforcement pieces of 30 cm (12 in) with 15 cm (6. Get all the timber & building materials you would expect from your local builder’s merchant at Selco. In accordance with BRE Good Building Guide 28 Part 1 (Domestic floors: construction insulation and damp–proofing), irregularities should not exceed 5 mm when measured with a 3 metre straight edge. Direct excess water away from your shed’s roof and base with roof guttering. View all: Radbar Membranes & Barriers. The POLYBASE 1200 Gauge (300 Micron) is a loose laid damp proof membrane designed to seal the ground floor construction, perimeter walls and around service penetrations to eliminate damp from entering the structure. 68 Per M². Make sure there is a 25 mm gap. 80. 4. However, while DPMs are instrumental in maintaining a dry, healthy living environment. FREE next day delivery available, free collection in 1 minute. Can be sprayed or trowel applied. SKU. The purpose of DPM. High performance Masonry Water Repellent Cream for use on brick, stone & render. 1. We stock damp proofing membranes with an overall sheet thickness of between 0. Indoor and outdoor use. Highly Durable. 01 SECTION INCLUDES: A. Still that may not solve a "rising damp" issue. More complicated basement sealing jobs such as adding drains & gutters can cost over £6,500. We will make sure you have the right damp proofing product to get the job done. Available in 380ml Cartridges, 1 Litre Cartridges and 3 Litre Buckets. Rec Thickness: 600 micron (2 Coats) read more. MEADOWS offers a complete series of dampproofing products for all your needs. The walls aren't wet and. hi, we are tiling our bathroom and have applied two coats of 'sika prufe' liquid damp proof membrane on to ply. The following are the various Internal damp proofing methods, 1. The membrane is designed for use in concrete ground floors, above and below slab not subject to hydrostatic pressure. This DPM is a ‘thick’ plastic sheet mostly 1000 – 1200 gauge polythene material. Permagard – 30 Years of Damp Proofing Experience At Permagard, we sell a range of high-quality basement waterproofing products . Add to Basket. It sits between the concrete and the underlay floor covering. The Stormdry. ) are types of DPM. Simply call us on 0117 982 3282. Brand: Ascolite. Click & Collect Available for collection. If a DPM has failed or perhaps was never installed in the first place, the features. Highly durable barrier prevents the ingress of harmful, naturally occurring Radon gas. You would require a DPM when using certain insulation materials – such as mineral wool, cellulose, etc. Easily apply it to prevent water penetration, rot or mold. 18+, T&C apply, Credit subject to status. Membrane Damp Proofing. Gas protection, damp proof membranes, damp proof course, stormwater, vapour control, temporary protection. The average cost of damp proofing varies depending on the method used,. It is low odour, solvent free, and most importantly deals with constant low levels of moisture in concrete floors. With the right epoxy damp proof membrane, your surface is much more likely to have a great life-span. 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 layers of flooring. A damp proofing membrane is one of the top materials used in damp proofing. A DPM may also be used with a damp proof course (DPC) to ensure complete protection from penetrating and rising damp. g. Get a Selco Trade Card or login now. But to give you a rough idea, the average cost of a damp proof course for a three-bed semi-detached property would be around £800. 50 Inc VAT. The sheet is supplied in rolls 4 m. Anti-Termite Brikgrip® DPC 3-layer 250 micrometer is an SABS approved damp proof course that is utilised in preventing rising damp in walls, as well as efflorescence and flaking of the wall covering. Wykamol's Dampstop Membrane is a studded polypropylene membrane, designed to act as a damp proof guard for walls suitable for rendering, plastering or dot n dab dry lining The impermeable layer gives additional protection against corrosive chemicals encountered during building and construction. Due to this, they are effective at protecting against rising. Remove damp items and spills and lock up tools. A vapour barrier, on the other hand, is a damp proofing product attached to a wood floor underlay to reduce moisture passage. The membrane has highly flexible properties, allowing it to easily adapt to irregular shapes without cracking or breaking. 2 The nominal characteristics are shown in Table 1. If you require further information on External Structural Waterproofing please contact one of our technical advisors on 0117 982 3282. First things first, a damp proof membrane, or DPM, is a prevention method against dampness. Get a Trade Card. Visqueen Urban Drainage Geomembrane Double Sided Tape 50mm x 10m. Use a hand held roller to ensure a firm bond with the primer. A specially formulated interior waterproofing primer. 1 x SDS Drill Bit (12mm x 260mm) 6 x 380ml Ultracure Kit. Damp Proof Membranes. Tanking membranes also known as damp proof membranes are sheets of specially designed plastic material that act as a waterproof barrier to protect walls and floors from water ingress. Our roof waterproofing range also includes a choice. DryRod damp proofing rods are the latest technology for the treatment of rising damp. Sikaproof membrane is a 1- component,water based, bitumen polymer modified waterproofing,cold applied liquid membrane. Neatly fold the damp proofing membrane around the corners. Delta PT-Lath Plaster Membrane Fixing Plugs (200) inc Drill Bit (with or without seal) £ 37. Amongst other benefits, each membrane provides a barrier to minimise the wind uplift load, wind driven rain, snow and dust as well as transporting any unwanted moisture resulting from ingress through. Tyvek ® Supro does not need any soffit, tile or ridge ventilation, which can save time and. £44. Cover the Bitubond membrane within 2 – 3 days of application. Jabfloor 70 Floor Insulation 2400 x 1200 x 125mm. We still need to remove a bit more of the rubble on the surface and level out everything before we can. First of all, you need it for vapour control. Fixing them could well solve the problem. Our range of damp proofing products includes everything from damp proofing paint and damp seal, to tanking slurry and damp proof membrane. Asian Paints SmartCare Hydroloc is the easiest waterproofing product for interiors. IKO also offer a number of on-line webinars which can be organised at your convenience. Whether it be in Brisbane, Sydney, Canberra, Melbourne or anywhere else between, we can come out and do the job for you**. Rising Damp. £13. DPCs prevents the movement of moisture or water from one part of the construction to another. Can be used at an underlayment under laminate on basement floors w/o OSB or Plywood. Add to basket. Check your local branch stock. The main difference between a radon barrier and standard DPM or damp proof membrane is that the latter only prevents moisture from the ground entering a property. Here you will find a selection of technical articles, presentations and case studies from which to support your enquiry. Designed to prevent moisture intrusion in brick and blockwork, Damp Proof Course (DPC) Polythene roll provides a reliable and effective solution to domestic damp proofing issues. Visqueen Self Adhesive Membrane - 1M x 20M Roll. Damp-proof membranes are a versatile product and can be used for a wide range of applications, such as creating a protective. Colour: White cream dries clear. Damp proof membrane Trade Store (1) 635 products Compare Sort Sort Capital Valley Plastics Ltd Green 125 Micron Moisture barrier 2 options (2) £ 14. Select options. Show: To prevent moisture and rising damp, browse through our range of Damp Proof Membrane (DPM) available at unbeatable trade prices today. Asian Paints SmartCare Damp Proof Ultra and Damp Proof are the ultimate solutions for roof waterproofing. The paint is latex based and will dry to a durable semi-gloss finish. Product details. That’s Mighty Helpful, that’s Mitre 10. If using as a damp proofing membrane dress the Bitubond self adhesive membrane to the damp proof course level. Key. Roofing felt, often called shed roof felt or shed felt, can be used on all sorts of outdoor buildings such as garden sheds, stables, kennels and more. £0. SKU: BCH06150. The installation of the DPM is extremely important as this acts as a barrier to prevent damp rising up through the substrate, from the ground below. Homeowners typically spend an average of $4,970, or between $2,316 and $7,624, to fully waterproof a basement, crawl space, or foundation. The easiest solution for damp proofing concrete floors is to install a plastic membrane. Single component, ready to use. A damp-proof membrane safeguards a building's concrete slab against moisture that may permeate from the foundations. Careers at Wickes. . ARDEX WPM 5000HD Shelterseal. Leave the cream to revert to its liquid phase and penetrate the masonry surrounding the hole. A damp-proof membrane is a moisture inhibiting foil that is 100% watertight. mortar droppings and brickbats. It can also be used to isolateIf there is moisture under the plastic after 2-3 days this would indicate rising damp. 97 - £ 24 View options. 99. 99. Boasting the best. Also acts as a damp-proof membrane. Extensive field experience with this technology demonstrates that Ultracure will perform as well as any conventional liquid injection system against rising damp. These pipes are fitted with one-way valves to stop water. If you do have a specific. 100mm overlap USB Tape Surface bed NHBRC-SHBM. The technical requirements for damp- proofing membrane are detailed in the South Australian Variations to the National Construction Code; SA F1. Made from recycled materials. Overview. Damp Proof Membranes (DPMs) DPMs are an essential product for protecting concrete or screeds from dampness in the ground, or for isolating internal floors from damp substrates. NDC Damp Proof Course 112. 58 Inc VAT. Therefore, damp proofings work best in relatively dry locations. Objective: The objective of this Method statement is to describe about materials, surface preparation, application procedure, safety measures and tools & equipment etc. Get it Sunday, 25 Jun. However, in many listed properties. DPM Damp Proof Membrane 300MU 4m Wide Polythene Sheet 1200 Gauge (0. Damp proofing should only cost between $2K to $8K*. Modern homes tend. Available : With Paper Core or Coreless, Black or Natural, Thickness or Length available according to your application. Homeguard Damp & Timber Ltd. PermaSEAL® Damp Proof Membranes. The damp proofing membrane kit can be installed straight after the insertion of the new damp proof course and can be rendered or dot and dabbed immediately after completion of the membrane installation. Delivery Free delivery available (restrictions apply) Log in to buy. At Fastbuild Supplies, you can find a comprehensive selection. - Manufactured using over 90% recycled materials. Sika® Damp Proofing Slurry Author: SIKA LIMITED, Watchmead, Welwyn Garden City, Hertfordshire, AL7 1BQ, Tel: 01707 394444, Web: Twitter: @SikaLimited Subject: Product Data Sheet Keywords: Sika® Damp Proofing Slurry 020701010010000049 Damp-proofing and Waterproof Coating Created Date: 8/4/2022. Damplas DPM is used as a membrane within a range of building applications, preventing water ingress in. Capital Valley Plastics Ltd Damp-Proof Membrane Black 1200ga 15m x 4m (59191) (150) compare. 2 x Rodding Port. This product is made from a minimum of 90% recycled post-consumer waste plastic. Proofex Geomembrane is a high performance damp proof membrane made from a prime virgin base material to 250 microns (0. A damp proof course 150mm above ground level can keep out rising damp that. The PermaSEAL 3 plaster membrane included in the kit provides. 2. Different types of damp proofing membranes are available depending on the intended use, finish required and the amount of damp and contaminates you need to control. First of all, you need it for vapour control. The purpose of dampproofing is to slow down the transmission of water vapor through the concrete walls into the house. There is a distinct difference between dampproofing and waterproofing. Clean any mildew and mould with bleach or vinegar spray. Easy Handling & Installation. Normally this function is performed by angle straps screwed onto the flooring. Fully isolate the dampness from the floor covering. £52. Vapour Barrier Foam Underlay 15m². Browse our weather and waterproofing range for roofs. Fully waterproof & leak proof solution. Waterproofing and Tanking. VCLs prevent excess moisture entering a wall’s cavity, behind the insulation. High Resistance to Breaking and Puncture Loads; Suitable for Under Asphalt and Other Hot-Applied Roading; Go to product. Get a Selco Trade Card or login now. +44 (0) 845 400 3333. Table 1 Nominal characteristics of Damplas Damp-proof Membranes Characteristic (unit) Grade Damplas 250 Damplas 300 Damplas 500 Thickness* (µm) 250 300 500 Width* (m) 4 4 4 Roll length* (m) 15, 25 15, 25 12. 49 50 Pack quantity Select from 1 variation For delivery only Login to save for later ★★★★★ ★★★★★ ( 15 ) Product code: 84927 Stormdry Masonry Protection Cream 5L £124. A specially designed sump chamber is usually installed at the lowest point of a basement. Fully isolate the dampness from the floor covering. £73. An easy to apply damp proofing seal paint, Wykamol's No More Damp Technoseal DPM 5ltr Black provides an effective waterproofing barrier. Essentially, this is a plastic mesh sheet specially formulated to ensure that moisture cannot penetrate. Open Mon-Thurs till 6pm and Fridays till 5pm. Choose from a wide selection of breeze blocks, engineering bricks and lintels at affordable prices. Want to place an order over the phone? Call our Dial & Deliver team on 03331 886388. Browse our downloads section below to find the latest support documents and services made available to you. 19 Inc VAT. 02 Inc VAT. ASTM E 96 – E. Click & Collect Available for collection. Order Cromar Vent 3 Lightweight Breathable Roofing Membrane Dark Grey 50m x 1m at Screwfix. Our waterproofing sealants section consists of roof primer, black waterproof roof paint and roof sealer from brands like Bitumen and Seal It. They are effective at stopping different types of damp for entering the home. However, rising damp occurs when there are issues with the damp-proof course and membrane. BBA Certified. Wickes Community Programme. Our easy to install range is available in various thicknesses up to 0. The membrane. IKO Rubershield is a range of BBA approved (cert No. 44 per m² £25. Our Liquid DPM (LVM Liquid Vapour Membrane Damp Proofing Paint) is a water-based ready-to-use waterproofing system supplied in an 5L tub. We can deliver the Drybase Liquid Damp Proof Membrane (1 Litre, White) - Damp Proofing Paint for Interior & Exterior Walls and Floors. We re-negotiated and got a bit of a discount on the house based on this. View all: Radbar Membranes & Barriers. Everything you need in one kit. 78 incl VAT. Damp can affect both domestic and commercial properties and is often costly to rectify, so proper prevention is key. It is ideally suited to repair frost damaged brickwork. 3. The Work of. 186. 2 The minimum requirement for backfilling is that a granular, free-draining material is used with theDamp Floor Treatment. 2. Monarflex® 2000 Gauge DPM - A loose laid, polyethylene damp proof membrane for horizontal ground supported or suspended slab applications without hydrostatic water pressure. So yes, a vapour barrier is required under a concrete slab for a Class 1 building (a dwelling) and for Class 10 (eg a garage) where the slab is continuous with the dwelling. This reduces the risk of harmful interstitial condensation by ensuring that any moisture within the. while stocks last.