LIQUI-HARD concrete densifier and chemical hardener compound is a proprietary, water-based, low VOC, ready-to-use, clear silicate liquid, formulated with chemically reactive raw materials to harden and dustproof concrete. This waterborne solution, when properly applied, offers substantial improvement in abrasion and chemical resistance and will significantly improve the durability of the concrete surface when compared to untreated concrete. As LIQUI-HARD is applied and penetrates into the concrete surface, a chemical reaction takes place, producing a byproduct that fills in the pores of the concrete. This process produces a substantially denser concrete surface with enhanced durability. In addition to the densifying and…
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Concrete Waterproofing
Waterproofing
One of the largest problems facing structures today is water infiltration. When water and water vapor are able to seep into structures, it can contribute to mold growth and the durability of the structure. As below-grade waterproofing is critical to the long-term performance of a structure, it is essential this is addressed with a complete waterproofing system designed and constructed specific for the structure. According to The Concrete Network, “draining any water away and ensuring a dry interior space below grade can be relatively simple or fairly involved depending on geographic location, climate, topography, soil/water table conditions, and depth of…
Learn more about the full line of building envelope products from W. R. Meadows
For years, W. R. Meadows has focused our efforts on manufacturing products that protect the building envelope, such as underslab vapor barriers, concrete waterproofing, and air barriers. Our line is seamless – our products work together as a continuous system to help buildings become more energy efficient, by helping a building block the ingress of moisture underground and above it. We’ve also been involved with LEED-certified structures. Our products are made with recycled material, use nearby raw material sources, and help make a building sustainable, durable, and energy-efficient. To help our distributor partners, contractors, and design teams learn more about…
A New Home For Bioscience Research (Case Study)
Print Version Pursuing the cutting edge in research and education has always been a focus at the University of Arizona—located in Tucson. And this intent was evident when the University first set out to build a new hub, on campus, to house bioscience research themes that included work on biosensors, bioimaging, bioinformatics, healthy aging, genomics technology, and precision medicine. The building itself is a joint collaboration between the University of Arizona Office for Research, Discovery, and Innovation and the University’s Department of Health Sciences. It was designed by ZGF Architects and BWS Architects, and the general contractor was DPR Construction.…
How to Waterproof Bridges, Parking Decks, and other Asphalt Concrete Wearing Course Covered Vehicular Structures
If your project is in need of a waterproofing membrane that can withstand being overlaid with hot asphalt without additional protection, MEL-DEK from W. R. MEADOWS deck waterproofing system features this benefit. Flexible, cost-effective, and easy to install, MEL-DEK is a heavy-duty, roll-type polymeric waterproofing membrane that offers consistent, reliable coverage. There is a membrane-to-membrane weld seam along both sides of MEL-DEK that provide positive, monolithic protection. MEL-DEK is ideal for repair, maintenance, or new construction applications meant as vehicular traffic bearing structures that are to be overlaid with an asphalt concrete wearing course, such as bridges or parking decks.…
Versatile, Easy to Use HYDRALASTIC 836 for Cold-Applied Waterproofing
HYDRALASTIC 836 offers many beneficial qualities as a waterproofing option in the construction world. With its ability to be bonded to existing concrete, green concrete, and asphalt as a cold-applied, solvent-free, single-component, monolithic waterproofing membrane, it’s easy to see why HYDRALASTIC 836 makes for an easy choice when picking the perfect waterproofing product for the project. Also, HYDRALASTIC 836 has very low odor, and will not shrink, crack, or slump in changing temperatures. HYDRALASTIC 836 can be used for interior and exterior, horizontal and vertical, above- and below-grade applications. With any product, proper application is a significant factor in how…
Earn AIA Credit While Learning About Blindside Waterproofing
W. R. MEADOWS is proud to announce its partnership with Hanley Wood to present a recently released AIA course covering blindside waterproofing and best practices for foundation waterproofing in difficult sites. This course discusses options for below-grade waterproofing on job sites where traditional waterproofing is not possible. Often this blindside technique is used where the foundation is below the water table or otherwise under significant hydrostatic pressure. Blindside waterproofing is also an option in situations where construction sites have limited access or zero lot lines. Choosing the correct blindside waterproofing product, such as W. R. MEADOWS’ PRECON, is necessary to…
5 reasons why PRECON is THE blindside/underslab waterproofing membrane
PRECON blindside waterproofing pre-applied underslab membrane is one of W. R. MEADOWS’ most popular products, and that’s saying a lot coming from a manufacturer known for proving hundreds of different quality building materials to construction professionals for over 90 years. It takes a lot to be the best, and here’s why PRECON is king – PRECON has a Patented Plasmatic Core PRECON composite sheet membrane is comprised of a non-woven fabric, elastomeric membrane, and W. R. MEADOWS’ exclusive, patented plasmatic core. PRECON offers the Lowest Water Vapor Transmission Rating on the Market PRECON’s plasmatic core is a seven-layer matrix providing…
5 Surprising Facts You Should Know About CLAY-TITE
New to W. R. MEADOWS’ extensive line of waterproofing products is CLAY-TITE bentonite clay waterproofing membrane. CLAY-TITE offers several benefits unique to its composition that you’re likely not to find in your standard waterproofing membrane. 1. CLAY-TITE has Self-Healing Qualities CLAY-TITE’s sodium bentonite clay layer offers self-sealing capabilities under hydrostatic conditions to ensure positive puncture protection. 2. CLAY-TITE has a Smart Design CLAY-TITE features a protective non-woven polypropylene layer to help protect the bentonite from being damaged during installation. 3. CLAY-TITE is Versatile CLAY-TITE is equally effective in installations where it’s pre-applied prior to pouring concrete or when used for…
Seal and Enhance the Natural Beauty of Decorative Substrates
DECRA-SEAL NATURAL from W. R. MEADOWS offers a unique water-repellent formulation that also enhances the appearance of the substrate without compromising its natural features with an artificial gloss. Low-VOC DECRA-SEAL NATURAL is a water-based non-film forming waterproofing sealer that penetrates deeply into the substrate surface to help repel water intrusion with a strong chemical bond. DECRA-SEAL NATURAL simultaneously enriches the colors of the application surface to provide a heightened appearance. DECRA-SEAL NATURAL is safe for use on decorative concrete, pavers, unglazed tiles, and a variety of porous natural and artificial stones. DECRA-SEAL NATURAL offers many beneficial features including the reduction…
Required Reading: W. R. Meadows Waterproofing Handbook
Our waterproofing handbook is a great resource for contractors looking for application information on the wide line of waterproofing materials available from W. R. Meadows. This detailed, informational handbook has been recently updated and includes the most up-to-date information on such popular concrete waterproofing products as Mel-Rol, Precon, and Hydralastic 836. The waterproofing handbook covers our entire waterproofing line, and is complete with product descriptions, architectural CAD details, and application instructions. It’s a great tool for contractors as well as architects to see how W. R. Meadows products fit into everyday and unique application situations. The waterproofing handbook, along with…
How to Protect Concrete from the Harsh Elements
Let’s face it, the atmosphere can create impressively extreme climates. When a concrete structure is constantly exposed to the elements, maximum protection is imperative to maintain its integrity. Special caution is often needed for bridge decks, piers, ramps, and other traffic barring and marine structures that must perform well in every environment. PENTREAT 244-100 breathable, water repellent penetrating sealer offers high-performance 100% active saline protection to inhibit water and chloride ion penetration in concrete and masonry structures. This hydrophobic, impregnating sealer helps prevent chloride-induced corrosion of rebar, scaling, spalling, freeze-thaw damage, and other causes of debilitating concrete by acting as…
Pre-applied Waterproofing for Vertical Applications
Professionals in the construction industry understand that no one project is identical to another. Site conditions, weather, and surroundings often present obstacles that must be taken into consideration when choosing the proper products and application methods to ensure a strong and long-lasting structure. In some cases, waterproofing is necessary to be pre-applied prior to pouring the vertical foundation walls. When this challenge arises, HYDRASTOP SA from W. R. MEADOWS is your pre-applied waterproofing membrane solution. HYDRASTOP SA is a composite, self-adhering sheet membrane consisting of non-woven fabric, elastomeric membrane, and coated release paper. HYDRASTOP SA forms a mechanical bond locking…
Properly Install Bentonite Clay Waterproofing Membrane with Animation Tutorial
Bentonite clay waterproofing membrane offers positive puncture protection under hydrostatic conditions with its self-sealing capabilities. CLAY-TITE bentonite clay waterproofing membrane by W. R. MEADOWS also has an additional layer consisting of virgin, 20-mil HDPE which provides further waterproofing security. CLAY-TITE membrane may be safely installed against shotcrete due to its tough polypropylene fabric. Successful waterproofing protection takes place when a quality product is installed properly. Available to help aid in installing CLAY-TITE correctly, we now offer an animated installation tutorial that features instructions that visually demonstrate step-by-step directions to make sure CLAY-TITE performs most effectively. This video may also be…
Recently Updated PERMINATOR Video Now Available
W. R. MEADOWS’ PERMINATOR 10 and 15 Mil underslab vapor barrier is a highly effective and economical choice to reduce unwanted moisture and water infiltration. Minimize the potential for fungus, mildew and mold growth with PERMINATOR as well as the risk of radon intrusion. PERMINATOR’s polyolefin-based resin/chemical technology offers high puncture resistance with one of the lowest perm ratings available. In order to assure PERMINATOR lives up to its impressive potential, proper installation is essential. PERMINATOR comes to life in a new and improved video now available to view and download through our website. This handy reference offers a product…
Precon from W. R. Meadows is your moisture protection solution.
The effectiveness, overall efficiency, and hiqh quality of PRECON, W. R. MEADOWS’ pre-applied/underslab waterproofing membrane, is demonstrated by the fact that architects and contractors continue to trust it for their biggest projects. For 2019, consider PRECON for all your building envelope construction projects, especially ones that require an effective vaporproofing and waterproofing membrane. PRECON is used as a blindside membrane in vertical applications where access to the positive side is limited. The membrane can also be used for horizontal applications for underslab waterproofing and vaporproofing. It is a composite sheet membrane comprised of a non-woven fabric, elastomeric membrane, and W. R.…
Self-Sealing Bentonite Waterproofing Ensures Positive Puncture Protection Under Hydrostatic Conditions
Recently introduced to W. R. MEADOWS’ sheet waterproofing line, CLAY-TITE bentonite clay waterproofing membrane offers a dual layer waterproofing option consisting of virgin HDPE, sodium bentonite, and a protective layer consisting of a non-woven polypropylene. The HDPE in CLAY-TITE provides the first layer of waterproofing while the bentonite’s self-sealing capabilities ensure puncture protection under hydrostatic conditions. The additional of polypropylene fabric protects the bentonite on the job site and from direct shotcrete installation. Designed for use below-grade, CLAY-TITE can be used in both vertical and horizontal applications. CLAY-TITE is an outstanding choice for tough and durable waterproofing, even when used…
Earn AIA Credit and Learn about Effective Waterproofing through BD+C University
As the end of the year approaches, now is the time to make sure you’re not short on AIA credits. W. R. MEADOWS is proud to offer a comprehensive course on effective waterproofing worth 1 AIA credit through BD+C University. This session discusses several aspects of concrete, including its chemistry, advantages, and disadvantages, as well as ways to protect and extend its durability through waterproofing. Also included in this session are different ways of waterproofing and appropriate uses for each. Learn about some of the issues relating to concrete deterioration as a result of water penetration, the difference between dampproofing,…
How to properly install a underslab / blindside waterproofing / vaporproofing membrane
While choosing the correct waterproofing/vaporproofing membrane is important to achieve a successful barrier in any underslab or blindside application, proper installation is imperative to avoid costly and time-consuming repairs if failures occur. W. R. MEADOWS recommends using PRECON pre-applied underslab/blindside waterproofing membrane for vertical and horizontal applications when access to the positive side of the concrete is restricted. Prior to applying PRECON, proper surface preparation is necessary to ensure the surface is structurally sound and all objects are removed that may cause damage to the membrane. Use of MEL-DRAIN is recommended to be used with PRECON to assure proper site…
Winter is Coming, but PRECON can Handle it
Labor Day marks the end of summer and colder weather is just around the corner, but don’t let the changing of the seasons inhibit construction plans. PRECON underslab membrane offers a tough blindside waterproofing solution and is able to prevent moisture infiltration and reduce methane and radon gas invasion even in low temperatures. PRECON’s seven-layer matrix designed to mechanically bond to concrete once it cures can be installed in temperatures down to 40°F (5°C). PRECON LOW TEMP is recommended for environments where the temperature is between 60° F (16° C) and 25° F (-4° C). To assist with effective installation,…
Ensure a secure drainage system with helpful MEL-DRAIN installation guidelines
MEL-DRAIN rolled matrix drainage system can be used in conjunction with W. R. MEADOWS’ moisture protection systems to allow the passage of moisture while filtering out fine soils through the drainage channel to assist in enhanced waterproofing performance. MEL-DRAIN relieves hydrostatic pressure buildup and provides protection for waterproofing materials. While MEL-DRAIN is easy to install, proper application is necessary to ensure a long performance life. To assist with installation, guidelines were created to aid in various application scenarios. These guidelines cover how to use MEL-DRAIN accessory products as well as attachment methods, how to connect rolls, and proper sealing methods…
Ensure a Dependable Building Envelope with AIR-SHIELD LSR
When versatility, simplicity, durability, and cost-efficiency are all top priorities for choosing the proper barrier for your building envelope project, look no further than AIR-SHIELD LSR from W. R. MEADOWS. AIR-SHIELD LSR offers a fluid-applied liquid synthetic rubber barrier option capable of air, water, and vapor protection. AIR-SHIELD LSR possesses many fluid-applied material benefits, such as ease of application, seamless protection, and superior performance. AIR-SHIELD LSR is appropriate to use on most common surfaces, various wall systems, and suitable for both new construction and restoration. Non-toxic and with low VOC content, AIR-SHIELD LSR is environmentally compatible, produces no harmful odors,…
Waterproof Expansion Joints with DECK-O-SEAL ONE STEP
DECK-O-SEAL ONE STEP is an easy and efficient way to seal vertical expansion joints with it’s single-component, non-sag, elastomeric, polysulfide-based compound qualities. Ideal for caulking joints in structures that are subject to movement caused by temperature change, DECK-O-SEAL ONE STEP is ideally suited for applications where an expansion joint is recommended. DECK-O-SEAL ONE STEP bonds well to concrete, masonry, glass, metal, and wood. In addition to offering glazing operations and sealing joints, DECK-O-SEAL ONE STEP also resists the effects of oil and gasoline when spills are wiped up immediately. DECK-O-SEAL ONE STEP is often used in high sloping and vertical…
Need effective cementitious waterproofing protection? Choose CEM-KOTE FLEX ST.
Looking for an effective cementitious waterproofing product? CEM-KOTE FLEX ST is the answer! W. R. MEADOWS offers this product, along with a series of cementitious waterproofing products, through our exclusive partnership with Gemite. The key product in this line is CEM-KOTE FLEX ST. CEM-KOTE FLEX ST is a highly flexible, fiber-reinforced, breathable, cementitious slurry, consisting of dry Component A and liquid Component B. CEM-KOTE FLEX ST is designed for positive and negative waterproofing of concrete structures in new construction and restoration. It is suitable for water and wastewater tanks, secondary containment structures, tunnels, concrete slabs, balconies, and patios with light…
Make Waterproofing Easy with MEL-ROL Self-Adhesive Membrane
When a dependable waterproofing solution is needed, quality doesn’t need to be compromised to accommodate a simple installation method. Flexible, versatile roll-type MEL-ROL offers a tough 56 mil thick polymeric waterproofing membrane that unrolls quick to assure consistent coverage. An easy to follow 2 ½” overlap guideline is printed on the material to assist in maintaining a straight application without the hassle of measuring or repositioning. Eliminate the need for additional adhesive with polymeric membrane strips that are a built-in part of the MEL-ROL system. These easy to expose strips are provided on both sides of the MEL-ROL surface for…
Check Out Our New Precast Brochure!
W. R. MEADOWS’ new precast brochure is now available for request! This detailed, informational piece highlights the products in our vast line that have been designed for the precast concrete market. For the precast market, W. R. MEADOWS offers a diverse product line, including form release agents, concrete curing compounds, and waterproofing membranes. This brochure covers these products in detail, and also includes product descriptions, photos, and a list of ideal applications. Popular products included in the brochure are DUOGARD form release, 1600-WHITE concrete cure, and CEM-KOTE FLEX ST cementitious waterproofing. But these are just a taste – make sure…
Selecting the Correct Waterproofing Membrane
When choosing a below-grade waterproofing membrane, make sure it’s tough enough to protect the foundation of the building from the destructive effects of water and vapor infiltration. The Manual of Below-Grade Waterproofing Systems, a comprehensive book written by Justin Henshell and published by John Wiley & Sons, Inc., lists criteria for selecting the correct waterproofing including the nature of the soil, hydrostatic pressure, the location of the water table, substrate stability, building occupancy, and constructions. Wendy Talarico, LEED AP and architectural service specialist at W. R. MEADOWS, discusses a blindside waterproofing application at the Arizona Center for Law and Society.…
Waterproof your deck with MEL-DEK
MEL-DEK from W. R. MEADOWS offers a waterproofing system designed specifically for tough waterproofing jobs where heavy traffic will take place. MEL-DEK’s 65 mils thick roll-type polymeric waterproofing membrane, combined with a durable polypropylene woven carrier fabric designed not to shrink, provides excellent waterproofing for bridges and parking decks where asphalt wearing course will be overlaid. MEL-DEK is versatile and can be used for repair, maintenance, or new construction applications. The reliable materials MEL-DEK encompasses requires no protection and can endure hot asphalt overlays. MEL-DEK is easy to install with an ¾” overlapping rubberized asphalt seam ensuring uniform coverage. Asphalt…
Our Hawkesbury District & General Hospital (HGH) case study is now available!
Our Hawkesbury District & General Hospital (HGH) case study describes the problem and solution when the new additions to the structure were designed and built. This case study is a great way to learn more about how W. R. Meadows products were used to waterproof this large project. When the Hawkesbury District & General Hospital (HGH) decided to build two large additions to its community hospital in Hawkesbury, Ontario, Canada, construction officials knew there was a big problem to solve. Below ground level was a substrate composed of solid rock with gravel on top. That meant there was no…
Russell Snow to Detail W. R. MEADOWS’ Air Barrier Performance at Pittsburgh Conference
W. R. MEADOWS’ Building Envelope Product Group Manager and Building Science Specialist Russell Snow will be featured in a panel discussion on liquid-applied air barriers during the one-day Materials Selection Conference in Pittsburgh on September 26. The event, hosted by Durability + Design magazine, is titled “Building Wall Coatings, Water Repellents and Liquid-Applied Air Barriers.” Snow currently serves as Chair of the Air Barrier Association of America and is a member of the ASTM E06, ASTM D08, and American Concrete Institute committees. He has also been involved for a number of years with Construction Specifications Canada and is currently involved…
Read Our “Building in Tight Urban Spaces” Article!
At W. R. MEADOWS, we’re proud to employ seasoned, experienced, educated professionals with impeccable product knowledge. Our sales team features many knowledgeable employees who have decade upon decade of experience in the construction industry. To help share this knowledge, our personnel actively write technical articles to help educate readers on several facets of the construction industry. Recently, our very own Wendy Talarico authored an article for respected trade publication, The Construction Specifier, which is the official publication for the Construction Specifications Institute. The article, entitled “Building in Tight Urban Spaces,” was featured in the August issue of the magazine. Read…
PRECON Underslab Membrane for Waterproofing and more
When tough underslab waterproofing is needed, PRECON membrane is the product for the job. Prevent moisture infiltration, reduce methane and radon gas invasion, and create a barricade against termites with the addition of PRECON into your construction project. PRECON is made up of non-woven fabric, elastomeric membrane, and a plasmatic core that is exclusively patented by W. R. MEADOWS. PRECON offers the lowest water vapor transmission rating available with its exceptionally tough seven-layer plasmatic core. A mechanical bond is formed between cured concrete and PRECON to ensure the membrane is sealed to the concrete for long-lasting protection. PRECON is ideal…
W. R. MEADOWS Introduces CLAY-TITE Waterproofing Membrane
W. R. MEADOWS is excited to introduce the newest member of their Waterproofing Membrane line, CLAY-TITE. The addition of CLAY-TITE bentonite waterproofing membrane offers a waterproofing option that is based on bentonite clay, a first of its kind from W. R. MEADOWS. CLAY-TITE is a dual-layer waterproofing membrane consisting of virgin HDPE and sodium bentonite, and a protective layer consisting of non-woven polypropylene. The HDPE in CLAY-TITE provides the first layer of waterproofing while the bentonite’s self-sealing capabilities ensure puncture protection under hydrostatic conditions. The additional of polypropylene fabric protects the bentonite on the job site and from direct shotcrete…
Vanier Football Complex Case Study
When Kansas State was in need for a hot liquid tar waterproofing alternative during phase 3 of their Vanier Football Complex construction project to expand their stadium seating compacity to 50,000 seats and increase the facility to include a grand four-story atrium and state-of-the-art training rooms, W. R. MEADOWS was able to offer HYDRALASTIC 836 as a perfect solution. After the architect’s initial specifications called for a hot applied sealant, safety concerns about working with hot liquid tar arose. The architecture firm quickly signed off on switching its product plans to HYDRALASTIC 836 after it was able to meet the…
HYDRALASTIC 836 – a Superior Waterproofing Compound
HYDRALASTIC 836 is a solvent-free, cold-applied, single-component waterproofing compound ideal for use on both interior or exterior concrete surfaces, including above and below grade applications. It has a low volatile organic compound (VOC) content, has very low odor, and will not crack in extreme cold or slump due to softening at high temperatures. HYDRALASTIC 836 is excellent for positive-side horizontal and vertical applications such as waterproofing plaza decks, planter boxes, and sealing parapets, as well as waterproofing of foundations and split-slab applications. It bonds effortlessly to concrete, asphalt, wood, metal and can be applied to green concrete. HYDRALASTIC 836 does…
Waterproofing Systems for Plaza Decks
W. R. Meadows’ Wendy Talarico, LEED AP, Architectural Services Specialist, explores the waterproofing world of plaza decks in an article published in The Construction Specifier. Plaza decks involve a variety of sizes, shapes and surfaces, resulting in confusion about the best way to waterproof them. “A plaza deck is a layer-cake of materials: the waterproofing membrane provides the base layer and the rest—protection layer, drainage course, insulation (or sometimes a fill layer of sand or gravel), and wearing or traffic surface—is ‘overburden.’ How those layers are designed depends partially on the design of the slab itself, which, in turn, depends…
CEM-KOTE FLEX ST for Cementitious Waterproofing
CEM-KOTETM FLEX ST is W. R. MEADOWS’ cementitious waterproofing compound designed for both new construction and bridging minor cracks in restoration projects. CEM-KOTE FLEX ST is a cost-effective alternative to traditional resin-based linings that do not need a dry concrete substrate during application. CEM-KOTE FLEX ST is a highly flexible, breathable, two-component cementitious slurry, perfect as an easy to use, flexible barrier that will protect against moisture and corrosive chemicals. This product is designed for water and wastewater tanks, secondary containment structures, tunnels, concrete slabs, balconies, and patios. Now available is the CEM-KOTE FLEX ST sell sheet that offers an…
Experience Tough yet Flexible Waterproofing with HRM 714
HRM 714 from W. R. MEADOWS is hot-applied rubberized asphalt waterproofing membrane that is comprised of 100% solids blend of asphalts, synthetic rubber polymers, and filler formulated to provide toughness with flexibility and low moisture vapor permeance. HRM 714 is hot-applied to form a continuous elastomeric membrane. It is ideal for waterproofing bridge, parking, plaza, or promenade decks; tunnels; pedestrian concourses; and similar types of construction where a monolithic waterproofing membrane is desirable. “HRM 714 hot applied waterproofing membrane provides W. R. MEADOWS with a hot applied option for waterproofing to complement our line of waterproofing materials, allowing us to…
W. R. MEADOWS Waterproofs the Ottawa River Storage Tank
W. R. MEADOWS recently worked with Arcadis US, Inc. Design & Consultancy and Kokosing Construction Company to take on waterproofing the 219,000 ft.² Ottawa River Storage Tank in Toledo, Ohio. This massive underground tank was waterproofed using our HYDRALASTIC 836 fluid-applied membrane. HYDRALASTIC 836 is a cold-applied, solvent-free, single component waterproofing compound. It doesn’t shrink, has a low volatile organic compound (VOC) content, and also has very low odor. HYDRALASTIC 836 will not crack in extreme cold or slump due to softening at high temperatures. It is an excellent product choice for horizontal and vertical waterproofing applications, such as the…
MEL-DRAIN CAD Details Now Available!
MEL-DRAIN continues to be one of our most popular materials for diverting water away from a building’s foundation. MEL-DRAIN is a dimple-raised, molded polystyrene sheet bonded to high strength polypropylene fabric. This geocomposite allows the passage of moisture through the fabric while preventing fine soils from entering the drainage channel. Various drain designs are available, depending on soil pressure and flow specifications. (An optional polyester backing film is available when used in conjunction with flexible waterproofing material.) The family of MEL-DRAIN products provides excellent protection in vertical, horizontal, and site applications. Used in conjunction with a total W. R. MEADOWS…