The product is designed to relieve hydrostatic pressure, by promoting the flow of ground water away from the face of the structure to land drainage. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in 1921. Specification Guide: RIW WATERPROOFING SYSTEMS May 2014 4 l Specification Guide to RIW Waterproofing Systems Specification Guide to RIW Waterproofing Systems l 5 How to Specify Waterproofing Technical Expertise RIW has been a generic term for waterproofing products for over 90 years; our name even stands for ‘Remember It’s. £ 28. We are proud to have installed these products onto some of the most prestigious projects in the UK. Technical number: 01753 944200. Technical number: 01753 944200. RIW Tilesafe is a heavy duty, cold applied, self adhesive waterproof membrane, consisting of a thick rubberised waterproof layer with a. Self-seals hairline cracks up to 0. RIW has a broad range of high performance structural waterproofing products - from basement tanking, waterproofing membranes and damp proof membranes to gas proofing products. £ 28. The RIW range now incorporates a wide range of diverse waterproofing solutions that are suitable for use above, below and at ground level, offering complete waterproofing assurance. We offer fast service across the UK, and will make sure your waterproofing solutions are delivered to you on site, when you need them. Sales number: 01753 944210. £296. RIW Toughseal is a two component, solvent free, epoxy resin coating that provides a water and vapour proof barrier, as well as protection against abrasion and chemicals. Good tensile strength. 12. KIM lowers the permeability of concrete, and is used in place of surface applied waterproofing membranes. Next. 05m x 1. The name RIW waterproofing come from an advert slogan first used in 1921 called ‘Remember It’s Waterproof’. Technical number: 01753 944200. RIW Limited 487 / 488 Ipswich Road Slough SL1 4EP. Request Callback; 01753 944200; technical@riw. Cementfill HB - Cement based waterproof high build repair mortar for profiling and providing fillets. High performance damp proof membrane. RIW has a broad range of high performance structural waterproofing. Read our whitepaper to… RIW Ltd on LinkedIn: #waterproofing #. RIW offers the. Our range of RIW products includes sheet applied systems and their classic liquid systems (we've all. Gas/Radon Resistant. Download our full whitepaper to. Description. Flexiseal Pro Primer is a two-pack solvent free black liquid modified epoxide surface conditioner that can be applied to damp surfaces. Our complete range of services will. 1. RIW Cementseal -cement base waterproof coating applied by hand or spray as a continuity membrane through the foundation bearing plane. How to apply self-adhesive waterproofing membranes; introducing the Hydroprufe from FIS Products. Innovative fast track waterproofing solutions, such as RIW Tilesafe and RIW Cement Based Coatings have been added to the range Waterproofing At or Below Ground Level. positive or negative side) Permanently waterproofs concrete. Movement joints are dynamic, and will be subject to horizontal (expansion/contraction), vertical and. Products can also be ordered through other Builders Merchants, such as Travis Perkins, Jewson, Gibbs and Dandy or Keyline. Technical number: 01753 944200 RIW has been delivering reliable waterproofing solutions for 100 years. Add to basket. BENEFITS l Water and water vapour barrier l Colour coded. We operate right across London and South East of England and have in excess of 40 years of industry experience. Krystol Internal Membrane (KIM) is a hydrophilic crystalline admixture used to create permanently waterproof concrete. Newton: 175 Years of Waterproofing Excellence and Innovation. POA. Protects concrete and reinforcement from harsh. co. POA. Touch-Dry in 6 Hours, Fully Dry in 24 Hours. Waterproofs from any. Suitable for horizontal, vertical and overhead applications. Customer Sales 01753 944210. Seamless and fully bonded. Sheetseal 9000 DPC is a flexible polymeric damp proof course sheet material manufactured from a mixture of thermoplastic polymers and additives. RIW Ltd. Learn about the range of cold applied liquid waterproofing coatings from RIW Products, a leading manufacturer of waterproofing systems. Manufactured from virgin material, not recycled waste. Technical number: 01753 944200. -- Choose an option -- Waterproofing above ground level. At. Aggregate Industries Applicator: Carey Group Ltd. RIW LAC Liquid Asphaltic Composition 25L. You may withdraw your consent at any time by clicking this link. waterproofing paint. Contact Us. Have a look at Servicised and RIW waterproofing systems - there is some good info there concerning the general principles and reference to the relevant British Standard. View all: Bostik Specialist Paints. Sales number: 01753 944210. BITUTHENE® is available in a number of grades to suit your project needs. By Martin Radford, Business Manager at RIW Ltd. Supplied as an easily applied sheet, it can be cold-applied at temperatures as low as 25°F and can be placed on a variety of concrete surfaces. Double Drain - a drainage board which protects. Sales number: 01753 944210. • Coverage per coat (minimum): 8 sqm/litre. For over 40 years, Premcrete has been relied upon by the major groundworks contractors to supply waterproofing, gas protection, concrete repairs, technical grouts and joint sealant products. Key FeaturesWater and water vapour barrierRandon barrierFlexibleEasy to applySulphate resistantIdeal for ground floors, super structures,. 05m. Easily added directly to ready-mix truck or at batch plant. Double Drain can also be used to provide excellent. the latest RIW Product Literature. BENEFITS l Manufactured from virgin material, not recycled waste l Robust jointing and sealing system l Welded joints possible l Single wound membrane with zero creases l Two colour membrane for on-site quality control. British Standard BS 8102, the Code of Practice for waterproofing of below ground structures has recently been updated to reflect new practices. Abrasion and impact resistant. New practices have been incorporated into British Standard BS 8102, the Code of Practice for waterproofing below ground structures. Complies with latest codes of practice as published by CIRIA and BRE. , The products must be installed in accordance with RIW written instructions, and following installation must not be. By Martin Radford, Business Manager at RIW Ltd. Technical number: 01753 944200 Sales number: 01753 944210 Warranty description . Features & Benefits of Cementseal. #RIW #waterproofing #constructionindustry. Our Online CPD is based on instructional text, drawings and photos. 66 Inc VAT £10. • Curing: Allow to dry thoroughly before covering. That is why we begin by taking a thorough look at the details of the project and discuss the requirements with the. Its effectiveness has been proven time and again in countless projects. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in 1921. RIW products are suitable for a wide range of applications, from basement tanking to at and above ground level waterproofing. RIW Protection Board is used for the protection of waterproof membranes against mechanical damage, pedestrian or vehicular traffic and abrasion caused by backfilling. Robust jointing and sealing system. RIW FLEXISEAL 500 HG system is poured onto the substrate and spread using a trowel and / or brush. Suitable for horizontal, vertical and overhead applications. Complies with latest codes of practice as published by CIRIA and BRE. It is a cold applied, high density polyethylene film bonded to aluminium foil and coated with a bitumen/rubber self adhesive layer . £ 0. Please enable them before continuing. RIW has a broad range of high performance structural waterproofing products. Description. Products. Find the right waterproofing product for your specific project requirements in a few simple steps with our easy to use product finder. Totally waterproof. Suitable for the damp proofing of interior masonry wall surfaces. Over the years, RIW has helped to waterproof many different types of buildings including schools. Sheetseal 9000 DPC is a flexible polymeric damp proof course sheet material, manufactured from a mixture of thermoplastic polymers and additives. Sales number: 01753 944210. Contact us for a list of specialist applicators in your region. The RIW range now incorporates a wide range of diverse waterproofing solutions that are suitable for use above, below and at ground level, offering complete waterproofing assurance. Along with soil types and water table levels, ground contaminates and gases such as Radon & Methane must be considered when deciding upon a waterproofing design. Premcrete supplies innovative groundwork solutions for major Construction and Infrastructure projects. Double Drain can also be used to provide excellent. Its robust waterproofing properties, combined with its ease of application, results in a contractor-friendly product that adds. Excellent chemical resistance. Technical number: 01753 944200. RIW Limited 580-581 Ipswich Road. Waterproofing Contractors in Victoria, BC. RIW products are stocked by specialist distributors such as SIG, Resapol, Anchor Bay and Miers Construction who deliver over a wide area. V. 87. Request Callback; 01753 944210; [email protected] the experts at RIW for advice on a simple solution to waterproofing lift pits. Heviseal is a cold applied, bitumen based coating, which dries to form a uniform UV resistant and waterproof layer. Generally, waterproof membranes are installed onto a suitable horizontal blinding layer and vertically to reinforced concrete or masonry sub-structures. Long lasting, versatile and easy to install, BITUTHENE® gets. As building capabilities are evolving, timber’s popularity is set to rise. RIW has a broad range of high performance structural waterproofing products. 05m. Sales number:. uk for data sheets, typical drawings and more. uk; Sales. Resists up to 100m head of positive and negative water pressure. RIW Heviseal is a cold applied bitumen based UV waterproofing coating filled with fibres and minerals. Easily added directly to ready-mix truck or at batch plant. RIW Ltd | 602 volgers op LinkedIn. £296. The board is resistant to water, ground salts and most corrosive chemicals. When designing Type A structures (as classified in BS8102:2009), the product applied correctly, is. Our latest blog from Martin… RIW Ltd on LinkedIn: #waterproofing #. POA. RIW has a broad range of high performance structural waterproofing products - from basement tanking, waterproofing membranes and damp proof membranes to gas proofing products. 1. FEATURES & BENEFITS of DPM Red. Premcrete supplies innovative groundwork solutions for major Construction and Infrastructure projects. For more information on the best waterproofing products for your basement project, get in touch with our technical team on 01753 944200. Warranty description . RIW 124781 Sheetseal Tanking 226 300mm x 20m. 68 (inc. From sheet applied systems to structural drainage, sodium bentonite systems to cement based waterproofing, DPCs, gas proofing and movement joints; RIW has the. The above performance figures are typical values and should not be considered a product specification. Harrison Waterproofing are approved contractors for RIW Waterproofing offer a range of products for structural waterproofing, basement tanking and damp proof membranes. RIW offers a wide range of diverse waterproofing solutions that are suitable for use above, below and at ground level, offering complete waterproofing assurance to architects and. Technical number: 01753 944200 Sales number: 01753 944210 In 2021, we became an accredited installer with The Air Barrier Association of America. Resbuild DPM Grey 1kg. The RIW product range has expanded and evolved over the years, to suit the ever changing needs of our customer’s projects. of diverse waterproofing solutions that are suitable for use above, below and at ground level, offering complete waterproofing assurance to architects, engineers and. Sheet. Back. River City Waterproofing, Inc. We have been consulted on virtually every application you can think of, so if you're looking for something specific, please contact us on 01344 397777. Their innovative two coat system is flexible, easily applied and adaptable. Gas membranes and coatings may be used for gas protection, above and below ground level and as an effective damp proof system. Technical number: 01753 944200. Typical installations include floor waterproofing, retaining walls and similar uncluttered surfaces. The images on this page show a recent project using RIW product. Cementfill FC. ly/3OOoOaORIW Product Catalog. Cavity Drain R7 is a 0. Consideration should be given to applying the DPM to the top of the slab, as the installation and moisture sensitive internal finishes are then protected from any residual moisture in the concrete. Provides a hard wearing, protective layer on wood, metal and cement. The product can also be used to protect retaining wall structures. RIW in the UK has over 90 years experience in structural waterproofing. Technical number:. Our Online CPD is based on instructional text, drawings and photos. RIW work closely with a nationwide network of Specialist Waterproofing Contractors, who are experienced installers of our structural waterproofing systems. Learn more about its benefits, applications and installation in. Sheetseal 9000 DPC is used to provide horizontal bed joints vertical DPC or stepped damp proof courses in either solid walls or cavity walls. From sheet applied systems to structural drainage, sodium bentonite systems to cement based waterproofing, DPCs, gas proofing and movement joints; RIW has the waterproofing solution for your. RIW CEMENTJOINT RIW Cementjoint is an advanced, elastomeric, highly tear resistant, breathable, waterproof composite tape. RIW Protection Board is used for the protection of waterproof membranes against mechanical damage, pedestrian or vehicular traffic and abrasion caused by backfilling. RIW Limited’s waterproofing products will, subject to normal service conditions, provide an effective barrier to the transmission of liquid water and water vapour for the life of the building in which they are incorporated. 00. About Us; Products + Browse by application. The RIW range now incorporates a wide range of diverse waterproofing solutions that are suitable for use above, below and at ground level, offering complete waterproofing assurance. A range of waterproof polymers, modified cement based coatings and repair mortars that can resist up to 100m head of negative water pressure. These systems contain high swelling sodium bentonite, and are generally pre-applied prior to placement of insitu. RIW's case studies provide guidance on overcoming commonly encountered waterproofing problems and applications on various projects throughout the UK. The RIW range now incorporates a wide range of diverse waterproofing solutions that are suitable for use above, below and at ground level,. BS 8102 was last revised in 2009 and since then there have been advances in waterproofing, including new technologies and systems as well as enhanced best… RIW Ltd on LinkedIn: #waterproofing #. Abrasion and impact resistant. RIW in the UK has over 90 years experience in structural waterproofing. British Standard BS 8102, the Code of Practice for waterproofing of below ground structures has recently been updated to reflect new practices. . All you need to do is answer a. 80/Ltr)If you’re looking for technical advice on the best timber waterproofing solutions to suit your project, give our technical sales team a call on 01753 944200. RIW DPM RED DPM Red is a three-layer, low density polyethylene membrane with a polypropylene reinforcing grid. From sheet applied systems to structural drainage, sodium bentonite systems to. Newton: 175 Years of Waterproofing Excellence and Innovation. RIW Sheetseal GR is a radon gas barrier and one of the most effective gas methane barrier systems available. The British brand has been coming up with expert waterproofing solutions for architects, engineers and builders for almost a century. RIW Ltd’s Post RIW Ltd 591 followers 9mo Report this post Report Report. Typically used to provide a protective coating to concrete or steel superstructures or other structures, such as retaining walls, and plinths when the membrane is to be left. View all: Bostik Specialist Paints. RIW has a broad range of high performance structural waterproofing products. Waterproofing above ground level;. As building capabilities are evolving, timber’s popularity is set to rise. Match case Limit results 1 per page. Innovation in Waterproofing. RIW offers a range of products and services for waterproofing below ground structures, such as basement tanking, waterproofing membranes, damp proof membranes and. Martin Radford posted images on LinkedInRIW work closely with a nationwide network of Specialist Waterproofing Contractors, who are experienced installers of our structural waterproofing systems. RIW Limited’s waterproofing products will, subject to normal service conditions, provide an effective barrier to the transmission of liquid water and water vapour for the life of the building in which they are. When designing Type A structures (as classified in UK BS8102:2009), the product applied. button. Double Drain can be used in conjunction with a primary waterproofing system, or on its own, to isolate the structure from the surrounding soil. +44 (0) 1753 944200 E: technical@riw. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof', from an ad slogan in 1921. Sales number:. 4mm butyl-based membrane, with a copolymer top layer, which. Double Drain is a cold applied, high density polyethylene profiled sheet, incorporating a permeable geotextile filter fabric, designed to prevent ground water reaching the structure. Should you require further information on waterproofing or ground gas protection, please contact TK Waterproofing Solutions on 0115 9894434 and ask to speak with one of our technical Managers, or. RIW in the UK has over 90 years experience in structural waterproofing. Self-seals hairline cracks up to 0. Our above-ground and below-ground waterproofing products form complete building envelope systems. Sectional details - Much of the design work on a waterproofing strategy is spent detailing individual sections. Download our… RIW Ltd on LinkedIn: #waterproofing. Heviseal is a cold applied, bitumen based coating, which dries to form a uniform UV resistant and waterproof layer. The product is designed to relieve hydrostatic pressure, by promoting the flow of ground water away from the face of the structure to land drainage. New practices have been incorporated into British Standard BS 8102, the Code of Practice for waterproofing below ground structures. Protects concrete and reinforcement from harsh. Continuous communication on any waterproofing project is key. We understand that not every waterproofing project is the same,. It's an easy-to-apply, sulphate resistant material that can be utilised for a number of building projects. The RIW. Simple to detail in critical areas. Two colour membrane for on-site quality control. A “needle-punch” process interlocks the geotextiles together forming an extremely strong composite that maintains a consistent layer of Bentonite, as well. Technical number: 01753 944200. MacLennan's Surveying team are fully qualified to tackle any contract, at any size. BS8102:2009Gas membranes and coatings may be used for gas protection, above and below ground level and as an effective damp proof system. RIW Ltd’s Post RIW Ltd 600 followers 5moDescriptionLiquid Asphaltic Composition is a two coat, cold applied damp proof membrane, which dries to a uniform gloss black finish. £14. RIW Cementfill FC – a waterproof fairing coat and repair mortar for filling minor holes, voids and defects. Looking for online definition of RIW or what RIW stands for? RIW is listed in the World's most authoritative dictionary of abbreviations and acronyms RIW - What does RIW stand. Sales number: 01753 944210. Quick and easy to install. RIW Sheetseal 226 is a cold applied, high density polyethylene film, coated with a bitumen/rubber self adhesive layer with a removable reinforced silicone paper. Kryton’s admixtures and additives are solutions that make high-quality concrete waterproofing and durability possible. DescriptionSheetseal 9000 DPC is a flexible polymeric damp proof course sheet material manufactured from a mixture of thermoplastic polymers and additives. Its robust waterproofing properties, combined with its ease of application, results in a contractor-friendly product that adds. Structureseal is a bentonite clay sheet waterproofing composite, comprising high swelling sodium bentonite encapsulated between a non-woven and woven geotextile. BSc (Hons) Civil Engineer Qualified Technical Advisor at RIW Ltd 4mowaterproofing details may have other impacts on the structure and these impacts must be assessed and understood by the design team or appointed designer. RIW in the UK has over 90 years experience in structural waterproofing. Class 1 Fire rating. 4 l Specification Guide to RIW Waterproofing Systems Technical Expertise How to Specify Waterproofing RIW has been a generic term for waterproofing products for over 90 years; our name even stands for ‘Remember It’s Waterproof’, taken from an old ad slogan in 1921. BBA Certificate RIW DPM Blue. The coating is a solution of natural and petroleum bitumens in white spirit. BENEFITS l Impermeable to water under 100m head of hydrostatic pressure l Exhibits 600% elongation l Adaptable, for use over construction and expansion joints l Good UV and chemical resistance l Weather. Waterproofs from any direction (i. The RIW name is always linked with quality products and is one of the best known brands in Waterproofing. BSc (Hons) Civil Engineer Qualified Technical Advisor at RIW Ltd 2wRIW Limited’s waterproofing products will, subject to normal service conditions, provide an effective barrier to the transmission of liquid water and water vapour for the life of the building in which they are incorporated. There are certain factors specifiers should consider. Contact Us. co. Choose between our online CPD below, which focuses on Waterproofing At or Below Ground Level (BS8102:2009) or contact us to book an in-house session. For more information about waterproof polymers please contact the RIW Technical Department. 1. Structureseal is designed for below ground vertical and horizontal structural foundation surfaces. Reactivates in the presence of moisture. GET A QUOTE. RIW has been a generic term for waterproofing solutions for over 90 years; our name even stands for ‘Remember It’s Waterproof’ from an old ad slogan in 1921. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in. By stopping the transmission of water through concrete, KIM adds durability and longevity to concrete by protecting it. BBB accredited since 5/17/2022. RIW are a leading waterproofing and damp proofing product supplier. Waterproofing & Radon Barrier. Take a look at how we have been able to adapt over the years but remain the name you can always depend on!Heviseal. Totally waterproof. RIW CEMENTSEAL Cementseal is a two component, polymer modified, cement based, waterproof coating for concrete and masonry. #riw #waterproofing #waterproofingsolutions. RIW CEMENTFLEX Cementflex is a two component, polymer modified, flexible, cement based, waterproof coating for concrete and masonry. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in 1921. Martin Radford posted images on LinkedInRIW work closely with a nationwide network of Specialist Waterproofing Contractors, who are experienced installers of our structural waterproofing systems. RIW Ltd 612 followers 9mo. Sodium Bentonite Systems. LAC is typically used as a damp proof membrane to ground floors, as a vapour barrier behind cladding and for tanking of basements. RIW, Arc House, Terrace Road South, Binfield, Berkshire G42 4PZ Call Technical: 01753 944200, Call Sales: 01753 944210. 80/Ltr)RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in 1921. At Precon, we have a wide stock of products from structural waterproofing specialists, RIW. Provides a hard wearing, protective layer on wood, metal and cement. Suitable for brush application only. co. RIW in the UK has over 90 years experience in structural waterproofing. Please note all fields marked with a * must be completed. British Standard BS 8102, the Code of Practice for waterproofing of below ground structures has recently been updated to reflect new practices. RIW in the UK has over 90 years experience in structural waterproofing. By Rajan Aggarwal, Technical Co-Ordinator at RIW Ltd. Internal Tanking Waterproof Membranes - RIW. SKU:. The RIW range offers a wide variety of products which. Harrison Waterproofing is a specialist firm offering a wide variety of services in structural waterproofing, basement waterproofing, damp proofing and timber preservation for both commercial and domestic applications. KIM lowers the permeability of concrete, and is used in place of surface applied waterproofing membranes. Ask the experts at RIW for advice on a simple solution to waterproofing lift pits. We can provide expert advice on structural waterproofing products, including gas proofing, cavity drainage systems and fast track liquids. Flexiseal Pro - Data Sheet. Retaining walls can be external walls forming part of the landscape design, or walls that form part of a property. Sheetseal 9000 DPC flexibility and workability. How to Specify. Harrison Waterproofing is a specialist firm offering a wide variety of services in structural waterproofing, basement waterproofing, damp proofing and timber preservation for both commercial and domestic applications. RIW products are suitable for a wide range of applications, from basement tanking to at and above ground level waterproofing. Double Drain is a cold applied, high density polyethylene profiled sheet, incorporating a permeable geotextile filter fabric, designed to prevent ground water reaching the structure. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in 1921. Download our… RIW Ltd on LinkedIn: #waterproofing. About Us; Products +. RIW Structureseal is a bentonite sheet waterproofing composite of high swelling Sodium Bentonite encapsulated between a non-woven and woven geotextile. High performance Polymeric. BENEFITS l Pre-applied tanking systems l Suitable for wet weather and low temperature applications l Quick and easy to apply l Does not require additional drainage or. Ensuring waterproofing solutions are successful is all about getting it right at the critical detailing stage. I would like to receive updates from RIW Ltd. Compare this product to another (up to 4 items)Description:Sika® 1 Pre-Bagged Structural Waterproofing System mortars are pre-bagged kiln dried blends of specially graded aggregates and cements packaged in 4 grades at the appropriate mix ratios for optimum application performance and durability. General purpose, solvent-based. - Bonding/ Sealing: RIW Sheetseal 226 x 150mm wide. APPLICATION PREPARATION All Surfaces: Should be smooth, clean, dry, sound and free from frost, oil, grease, condensation and otherRIW Ltd in Moses Lake, WA Expand search. Double Drain can be used in conjunction with a primary waterproofing system, or on its own, to isolate the structure from the surrounding soil. We manufacture the full scope of Structural. RIW Limited’s waterproofing products will, subject to normal service conditions, provide an effective barrier to the transmission of liquid water and water vapour for the life of the building in which they are incorporated. RIW, Arc House, Terrace Road South, Binfield, Berkshire G42 4PZ Call Technical: 01753 944200, Call Sales: 01753 944210. 99Inc Vat. Kryton Concrete Waterproofing. There is no substitution for experience. As the adhesive dries it forms a strong permanent bond through the mesh and directly onto the waterproof. Basement Waterproofing; Exterior Wall Waterproofing; Interior Wall Waterproofing; Roof Waterproofing; Foundation Repair; New Residential Structural Waterproofing; New. All applications. Sales number: 01753 944210. RIW has a broad range of high performance structural waterproofing products - from basement. The product is designed to relieve hydrostatic pressure, by promoting the flow of ground water away from the face of the structure to land drainage. the latest RIW Product Literature. Resistant. At Our Lady’s Convent High School in Hackney, RIW was asked to advise on waterproofing in the. RIW has been a generic term for liquid waterproofing solutions for nearly a century; our name even stands for 'Remember It's Waterproof' , from an ad slogan in 1921. 4 l Specification Guide to RIW Waterproofing Systems Technical Expertise How to Specify Waterproofing RIW has been a generic term for waterproofing products for over 90 years; our name even stands for ‘Remember It’s Waterproof’, taken from an old ad slogan in 1921. Double Drain can be used in conjunction with a primary waterproofing system, or on its own, to isolate the structure from the surrounding soil.