CLAY-TITE can be installed either vertically or horizontally with the HDPE surface towards the drainage board. Despite such advancements, disadvantages persist. Keep CLAY-TITE dry; protect from exposure to the elements. Trowel CLAY-TITE MASTIC covering the penetration. If you have any other questions and suggestions, feel free to use the comment section below. %PDF-1.7 % A dry, healthy home starts here.Contact your local dealer or call 1-800-638-7048. This site is protected by reCAPTCHA and the Google. In this article, well be telling you all you need to know about bentonite injection waterproofing, and why it is an ideal choice for protecting your basement against moisture. Successful waterproofing with liquid-applied membranes depends on proper thickness and uniform application. 1. A slurry about the consistency of water is then injected so that it can set up and form a continuous water barrier. Finished waterproofing liquid coatings can be inspected. Get building science and energy efficiency advice, plus special offers, in your inbox. WebDisadvantages of Waterproofing: Bitumen-based products soften in the summer heat because the black color has restricted life due to solvent evaporation. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. For the Quirk Hall project, I would like it to be known that we didnt consider any other products except for W. R. MEADOWS. Redundancy in Subgrade Waterproofing Bentonite is used to seal building foundations from wet soil. This image from a Tremco Technical Bulletin shows how challenging it can be for negative-side waterproofing to prevent below-grade water leaks. Waterproofing Systems Injection holes or ports are drilled into an interstitial space or right through to the exterior of foundation concrete, typically spaced 18 to 24 inches on center. Based on the soil characteristics in the area where you live, you need to use 6 pound of bentonite per square foot. $87LgA00Fg\ Bentonite waterproofing systems offer the following advantages: Safe application - even at extreme temperatures. Waterproofing This website requires certain cookies to work and uses other cookies to help you have the best experience. Properly Install Bentonite Clay Waterproofing Membrane To get the best results from bentonite, it is recommended that it is applied during the construction phase of your home. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. 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. With more than 35 years of industry experience, you can count on us for top-quality service and professional results. You can unsubscribe at any time. Webimpact the proposed waterproofing system for the structure. A thin layer of bentonite will not stop water from getting into your basement, you will need a thick layer to achieve such results. Heres a quick rundown: Incomplete coverage. They also allow for a larger building footprint and reduce maintenance and repairs over the long term. Some alternatives are available which have advantages over bentonite. In recent times advanced technology of polymer chemistry has increased the use of bentonite by making it a more versatile material. Application Video. Discover the products used for this solution and other alternative products. Refer to ACI 302.1R-04: Chapter 4 Site Preparation and Placing Environment for sub-grade preparation. Although liquid-applied membranes work well on projects with multiple plane transitions, intricate geometric shapes and protrusions, they are typically only used when prefabricated sheets do not work. Bituminous waterproofing is a popular technique used for the low sloping roofs due to their low efficiency, it consists of a flashlight and a self-adhesive membrane on the layer. These sheets were made from alternating layers of bitumen and felt. Backfilled Wall Install CLAY-TITE with the bentonite side towards the concrete. Note the taps and installler in this image of the Koster injection system being used on a concrete block wall in the Empire State Building. The Koster NB1 system includes a cove detail at the cold joint formed between the foundation wall and slab. This illustration is one in a series depicting the steps to the Hammer & Hand approach to interior basement waterproofing. Bentonite is great for waterproofing because of its ability to absorb water and swell to about 15 times its original size. Bentonite clay is a great material to use for basement waterproofing, but it does come with its fair share of disadvantages. However, you cant waterproof your basement using bentonite only. SikaProof Bentonite In addition to promoting and enhancing the natural hydration process of cement, these systems are highly versatile, useful and reliable for a wide range of applications. About By continuing to use this site, you are providing us with your consent to our use of cookies. As with many aspects of life, there are advantages and disadvantages to both options. Bentonite can self-heal, is non-toxic and is relatively easy to install, but it is rarely used in places where the risk of leaks must be minimal and humidity control is necessary. How much bentonite do I need in my pond? This is because soil can absorb and retain moisture, which can penetrate through cracks in your foundation walls and into your basement. This waterproofing method has been employed for more than 75 years, but its popularity has recently increased. WebThere are three methods commonly used to seal a pond with bentonite pond sealer: the blanket method, the blanket mix method, and the sprinkle method. There is an approach you can take for primary waterproofing from the interior of existing basements or other below-grade structures: chemical injection or curtain wall injection. If you bury your waterproofing treatment behind finished floor and walls such that they cannot be inspected for new cracks, there is no guarantee that your waterproofing system will stand the test of time. Installing Basement Waterproofing from the Negative Webreactive bentonite compound can expand to seal small punctures in the membrane. Trowel and sprayed bentonite applications are rarely completed anymore. Georgia, There are many methods that you can use to waterproof your basement. Bentonite has the ability to expand up to 15 times its normal size, hence absorbing more water and becoming denser until moisture can no longer pass through. We have, HYDRALASTIC 836 is a cold-applied, solvent-free, single-component waterproofing compound. Most applications simply require nailing of the sheet or panel to the substrate. Paraseal GM/LG 20 mil is a sheet waterproofing and methane-mitigating membrane consisting of 20 mils of HDPE, expandable, granular bentonite and a protective layer of spun-bonded polyester. As far as keeping water from passing through your foundation walls into the basement is concerned, bentonite gives you the same level of protection like other waterproofing approaches. Since 1987, Basement Systems, Inc. and its network of affiliated contractors have helped restore peace of mind to thousands of homeowners across North America. The good news is, bentonite is non-toxic, neither is it allergenic. If a crack forms, any water influx causes more crystals to grow, re-blocking and sealing the passage against water and waterborne contaminants. 4 Sneaky Signs This creates problems stemming from soil's tendency to absorb and retain moisture moisture which will begin penetrate through any cracks or gaps in your foundation walls. In. The one difference with these applications is the requirement of block outs in walls for tieback plates or rakers. the "author" of the Hammer and Hand basement detail First, high hydrostatic pressure is required for complete hydration of the clay molecules. Remove all sharp protrusion greater than 1/4 (6.4 mm). They also increase tensile strength, resistance to acidic soils, resilience, self-healing and bondability. However, laying bentonite in sheets will mean you have to do some excavation around the foundation before the job can commence. But it means you will have to first do some excavation before the new waterproofing clay is applied. This method translates into additional costs and requires more time to complete. The best placement for Superstop is 2 (50mm) inboard from the exterior side of the wall assembly and immediately prior to the rebar caging. I've had very good luck using a combination of Xypex products. Interior damp proofing. Civil. It contains no VOCs and can be completely recycled when demolition occurs. On the other hand, if you can channel water to below the floor, then a non-permeable membrane is preferred and bonding and inspections don't matter. Another downside of this approach is that there is a risk of loose bentonite flowing into the soil, which means that your foundation will be less protected. While this may happen after just a few months or a few years, it will eventually happen. Cold-applied polymer-modified bitumen is a sheet membrane composed of polymer materials compounded with asphalt and attached to a polyethylene sheet. Whats the best method and the best material? The consent submitted will only be used for data processing originating from this website. This would increase the cost of completion, being that you have to buy a lot more of the material. Expect to spend about $85 per ton of bentonite. Self-adhesive compounds include asphalt, polymers, and filler, while some resins and oils are added to improve the adhesion characteristics.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'constructionor_com-banner-1','ezslot_9',111,'0','0'])};__ez_fad_position('div-gpt-ad-constructionor_com-banner-1-0'); The self-adhesive has a shorter shelf life because of the bonding properties of membrane life over time, while the flashlight on the membrane is exposed and covered. Additionally, crystalline admixtures offer installation advantages. Lack of dependable resistance to vapor migration. Waterproofing By closing this message or continuing to use our site, you agree to the use of cookies. Let us take a look at some of them below. Terms of Use, USA Canada Franais Espaol International. Areas that require flexibility and face recurring movement would be better waterproofed another way. The material was sprayed or troweled onto the substrate, which sometimes led to inconsistent application thickness. The swelling is caused by the materials molecular structural form, which is comprised of expansive sheets that can expand based on the grading and clay compositions. This can be problematic, since more need more labor and weather conditions cannot allow always to withstand several days before applying the second layer. Lets say you want to waterproof your 1,000 square foot basement. Sheets can debond if they are not promptly covered after installation, the top edges are not sealed, the primer is incorrectly applied or if tie holes are not flush with the concrete surface. There are pressure limitations beyond which the clay loses its waterproofing capacity. BENTONITE WATERPROOFING hmO0GU4!@R6Z`Eh |9viiI Lets take an example. Advantages of Exterior Waterproofing Membrane Over Sodium Bentonite Installing an exterior waterproofing membrane onto the area where the water was seeping into your basement has a wide variety of advantages over the Sodium Bentonite option. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Designed for use below-grade, CLAY-TITE is equally effective in installations where the waterproofing is pre-applied prior to pouring of the concrete or when used for standard applications. Clay in general displays an incredible propensity to absorb water, expanding in the process. For installation temperatures below 40 F (4 C), use CLAY-TITE MASTIC in place of CLAY-TITE ADHESIVE. Membranes do not have to be separated from the concrete, waterborne contaminants are not present in the concrete, and petroleum-based materials are not left behind to leach into soil. Continue with Recommended Cookies. Reading the different types and their benefits made me realize that waterproofing in concrete is necessary. Water-soluble sulphates can degrade concrete. Application of Bentonite Lap all seams a minimum of 4 (101.6 mm). If you apply a thin coat of bentonite, water will eventually enter you basement. Concrete treated with these admixtures contains chemicals that lie dormant within. All Rights Reserved BNP Media. Bentonite is not suited for all applications; however, in it is well matched for intricate conditions such as blindside applications in deep excavations. The liquid is cured in a rubber coating on the wall and surface elongation properties can reach 280%, the durability of a waterproofing coating depends on the type of manufacturer. You can use anywhere from 3 pounds to 10 pounds per square foot. It supplies a healthy environment, good waterproofing system helps in making a clear living workspace. There are also many more steps to follow that imply using additional materials. For example: In a large pond (2-acre area) with fish, the preferred method will be the sprinkler method. Bentonite sheet membranes have a long history of success due to their controlled mil thickness and multiple components for waterproofing, such as an added high-density polyethylene (HDPE) material. UNDERSTANDING BENTONITE WATERPROOFING Panel or sheet laps must be taped if precipitation is likely or if the material will not be backfilled the same day. In areas under constant hydrostatic head conditions, all joints and seams are to be detailed using CLAY-TITE MASTIC. Although hydrophobic systems may perform satisfactorily for dampproofing, they are less successful at resisting liquid under hydrostatic pressure. Types of waterproofing This speeds up the construction schedule and decreases labour costs by combining steps with concrete placing. The geotechnical report with a soil and water analysis should be approved by the This equals 3 tons of bentonite which translates into $255. It takes a granular form and can be found in many parts of the United States. Integral waterproofing admixtures tend to be less expensive for materials, and additional labour costs are almost nonexistent. The polypropylene fabric protects the bentonite from direct installation of shotcrete. WebOur company provides insulation, waterproofing and fireproofing services for commercial construction projects throughout the southeastern and south-central United States. CLAY-TITE is a dual layer waterproofing consisting of virgin HDPE (20 mil), sodium bentonite, and a protective layer consisting of a non-woven polypropylene. Paraseal GM/LG 60 mil is a sheet waterproofing and methane-mitigating membrane consisting of 60 mils of HDPE, expandable granular bentonite and a protective layer of spun-bonded polyester. Integral concrete waterproofing systems can be densifiers, water repellents or crystalline admixtures. Installation for slabs-onground are completed by simply laying the panels or sheets on the substrate and lapping the panel joints. They block water from any direction because the concrete itself becomes the water barrier. How much does bentonite waterproofing cost You must be a magazine subscriber to access this feature. Now the soil characteristics and the size of the area being covered will determine the amount of bentonite you will need to buy. Disadvantages Of Bentonite Waterproofing Bentonite clay is a great material to use for basement waterproofing, but it does come with its fair share of disadvantages. It can be sprayed with the liquid layer made from the polymer-modified asphalt which is available in different grades for trowels, rollers or sprays from various manufacturers. My situation and approach were a bit different. Polyurethane-Methacrylate (PUMA) Technology, TREMproof PUMA for Below-Grade Waterproofing. Naturally, some waterproofers are nervous about using bentonite panels for the same reason as sheet membranes. Legal Notices / Imprint (Click on the image to enlarge it.). Is CLAY-TITE compatible with stone foundations? The coatings bridge cracks up to .4mm and the putty fills larger holes. In this guide, were going to focus on bentonite and Ill tell you everything you need to know about this type of clay, how to use it and how much it costs. This ensures that the greatest possible amount of space is sealed in the process. Contact Pete here. The basement is one of most vulnerable parts of a home, thanks to the fact that it tends to be surrounded by soil. WebThese panels are made of bentonite clay sandwiched between cardboard. CLAY-TITE HSR from W. R. MEADOWS may be required in this installation. Because the membrane can puncture and tear during backfilling, protection boards also need to be installed. They are often inaccessible for repairs after installation. With an existing house, the foundation must be excavated in order to apply bentonite sheets. Detailing W. R. MEADOWS offers CLAY-TITE MASTIC and CLAY-TITE ADHESIVE for seam laps. The torch seal is used for podiums, outdoor development, and works on site and prevalent method used for on-site waterproofings, it is a more durable and cost-effective method than self-adhesive membranes. Bentonite is mixed with water to form a slurry that can be applied to the surface of a structure to create a waterproof barrier. There you go, I hope this post answered all your bentonite-related questions. Once installed, bentonite is difficult to remove, so options for future repair or replacement are limited. 2023 W. R. Meadows, Inc.All rights reserved. When heated, traditional bitumen both coal tar pitch and asphalt releases volatile organic compounds (VOCs) and potentially carcinogenic fumes. Bentonite is usually applied in sheets. Please see our Privacy Policy for details. much do you consider sustainability in your designs? The clay is usually applied in thin sheets, but it can also be sprayed onto the foundation. Examine the proper alignment and adjust the sheets where required and unrolls the sheets on the floor of the structure. Bentonite sheets typically contain 85 percent to 90 percent montmorillonite clay and a maximum of 15 percent natural sediments such as volcanic ash. It is used for waterproofing purposes due to its ability to expand in contact with water. Further care should to be taken for the overlaps, edges and angles to verify proper bonding. Bentonite Waterproofing Thermoplastic polymers have led to the creation of thermoplastic membranes.