Negative systems are generally limited to cementitious systems. Dampproofing is intended to control vapor diffusion through the foundation, which can contribute to damp conditions on the interior. In these cases, the concrete foundation wall is placed against the blind side waterproofing membrane. Location of the slip plane may vary depending on the design; however, it should be included in all assemblies. This area should also be properly vented. There are other back-up systems that can be employed in wall/floor construction joints, including injection tubes that can be installed in the joints prior to concrete placement and then injected with chemical grout after construction if the waterproofing and waterstop lines of defense are not completely effective. Long-lasting Moisture Protection, Long-lasting Satisfaction The entry level of good performance, as Straube puts it, would consist of a drainage membrane like dimple map plus a perimeter drain at the base of the wall. Homeowners at one time expected their basements to be wet once in a while. Positive-side waterproofing systems are post-applied to the surface of the element that is directly exposed to moisture, typically the exterior side of the foundation wall. SKU 3811R-GR. Materials used may be concrete or reinforced masonry. Then he filled the hollow cores of the columns with water to see whether the coatings worked. For application from the exterior, the next design decision is to use fluid applied or sheet products. All core joints and terminations must be covered by fabric overlay. Special treatment is also needed at all door entries. The foundation wall may be an integral part of the load bearing design of the building carrying column and floor loads from above, either as distributed loads on the wall or point loads on pilasters integral to the wall system. Creates a drainage/ventilation cavity environment behind natural and manufactured stone veneer walls. One of them, Texas-based Matt Risinger, starts with a liquid-applied or peel-and-stick membrane that is applied directly to the foundation wall (he fills any large voids with mortar first). The integration of the two systems requires careful consideration to insure that all moisture, air and thermal criteria for each system are satisfied at the transition interface. Trusted, comprehensive guidance from the pros for a home that is healthy, comfortable, and energy efficient. Thermal considerations are of limited concern as one gets deeper down on the foundation wall as there is a constant, thermal design condition on the exterior. Extruded polystyrene insulation boards should be properly supported on the footing to prevent vertical movement. endobj The information contained therein is not intended for actual construction, and is subject to revision based on changes and or refinements in local, state, and national building codes, emerging building envelope technologies, and advancements in the research and understanding of building enclosure failure mechanisms. Dampproofing is always applied on the positive side, or wet side, of the structural element. 9 0 obj Theres one thing to keep in mind when using a waterproofing membrane on the foundation walls, Straube says. With some coaxing, the two crystalline coatings did keep water out. This assembly, what he calls the biggest bang for the buck, should be able to cope with relatively wet conditions and work on all but the most challenging sites. The first two systems can be applied as negative-side or positive-side waterproofing. Although marketed to be used with excavated soils during backfill in lieu of a granular drainage layer, it is recommended that a full system approach be used in applications where water leakage is not tolerable; a full system approach should include both a synthetic drainage layer and granular drainage layer. In areas with greater moisture loads from hydrostatic pressure from high water tables or sensitive interior environments, a waterproofing membrane should be applied to the exterior surface of the foundation wall in lieu of dampproofing. They were used mainly for storing coal and potatoes. Moisture control made for wall systems An innovative drainage mat, Tyvek DrainVent Rainscreen prevents the rot, cracking, and peeling that moisture can cause in exterior wall systems. As explained by Matt Stock, president and owner of U.S. Waterproofing, a Chicago-area company, its possible to dig outside the foundation to expose a crack with a shovel or post-hole digger, then treat the area with bentonite. When Peter tried plugging an active leak with Drylok Fast Plug hydraulic cement, the column continued leaking, including right at the plug. Other surfaces such as gas pipes, signal or electrical should generally be done with due consideration for the nature of the sleeve through the exterior wall and the depth below grade of the penetration. endstream A variety of sheet- and liquid-applied membranes can be used, all designed to resist the hydrostatic pressure of ground water. A protection course is a puncture-resistant material designed to minimize or prevent possible damage to the waterproofing membrane prior to or during concrete pour and backfilling. Bentonite ClaysThese systems include composite sodium bentonite systems with HDPE liners and geotextile fabrics, which are more common and more effective than the traditional systems. Thickness; 1/4 " 3/8 " 13/32 " 7/16 " 1/2 " 9/16 " 5/8 " 3/4 " 7/8 " 1 3/4 " Mat Type. (11 mm) thick geocomposite drainage sheet system, comprising a hollow studded polypropylene core, covered on one side with a nonwoven, needle punched polypropylene filter fabric and on the other side with a smooth polymeric film. What adhesives may be used for installing drainage mat to Tremco below-grade waterproofing membranes? Graded pea gravel refers to naturally rounded stone between 3/16 inch and 3/8 inch in diameter. The second area is the finish to the exterior near grade level. Woven products are constructed using individual threads or filaments and have good strength and stiffness; however, the material can be penetrated by angular aggregate reducing the ability to properly filter or separate fine elements. When it is wrapped over masonry ledges, care must be taken to coordinate with masonry ties and thru-wall flashings. Builders will have to move up to a true waterproofing material when site conditions include a high water table, or when taking extra precautions against water intrusion. Although thats still a common approach for dampproofing foundations, builders also will find a range of other products, from peel-and-stick waterproofing membranes to liquid-applied synthetic rubber designed to span cracks in the concrete that are bound to develop in time. a slope of at least 1/8 inch per foot of drain or 1 percent should be provided). Protection Boards are used to shield waterproofing membranes from construction damage, damage from backfill materials in service, and ultraviolet radiation. Contractors have successfully used daubs of the Tremco membrane originally used to waterproof the foundation. Excess water is collected and conveyed to a proper collection system, helping to control drainage flow. Cementitious SystemsThese systems contain Portland cement and sand combined with an active waterproofing agent. Find Your Sales Rep location_on. In the upper areas of the foundation wall thermal loading considerations must be addressed. The following details can be downloaded in DWG format or viewed online in DWF (Design Web Format) or Adobe Acrobat PDF by clicking on the appropriate format to the right of the drawing title. Despite the fact that dimple mat is impervious to water, its still not considered a waterproofing layer because it is not sealed at the bottom of the wall, says Barrett. Dryvit Drainage Mat is a flexible, thermally preformed, in a zigzag configuration, mat made of polyamide and produced in a pale blue color for identification. membrane at the foundation wall in addition to FOAMULAR & FOAMULAR NGX INSUL-DRAIN board. WBDG is a gateway to up-to-date information on integrated 'whole building' design techniques and technologies. Holes in drainage mats allow water and other liquid hazards to pass through the top of the mat, reducing the likelihood of injury from slipping. Isolation, insulation and waterproofing of certain piping that undergoes large temperature changes are often underestimated for resulting movement. Bentonite panels are still common on commercial waterproofing jobs, says Geiger, and remain popular with some architects and builders. Most of the time, waterproofing is not needed residentially.. As most foundation wall systems have substantial mass, e.g. Where sheet materials are utilized, it is preferred to adhere the membrane fully and continuously to the substrate to prevent lateral migration of leaks, and to heat-weld or positively bond the seam laps. 201 Polito Avenue With fluid membrane systems, proper application in terms of coverage and thickness is critical to performance, and this should be monitored throughout the installation. Careful attention to installation is critical during both cast-in-place and shotcrete applications in blind-side waterproofing assemblies. However, water removal measures around foundation walls below the water table may be impractical and expensive over the long-term and the waterproofing strategy becomes critical. Thats s no longer the case. For most portions of the foundation wall, water removal and control is of prime importance. Asphaltic coatings may be solvent- or water-based. The drainage board should have the protection sheet on the backside of the core to promote better movement against the insulation. The plastic composite "dimpled" drainage cores are available in various configurations and are typically constructed using polypropylene, polystyrene and polyethylene. A rising water table can push moisture up behind the membrane at the footing. This excess moisture might be due to flooding or some other reason. The higher soil temperatures on the exterior also create the need to provide at least a damproofing on the exterior of the foundation wall to resist the strong interior vapor drive. Building Product Divisions > 07 - Thermal and Moisture Protection > 07 05 10 - Rainscreen Drainage Mat 07 05 10 - Rainscreen Drainage Mat. Cosella Dorken Products. Get home building tips, offers, and expert advice in your inbox. BROWSE CATALOG. This finish is dependent on the interior use whether it be a controlled office environment or a non-controlled parking environment. Distribution FunctionsFoundation walls may contain distribution systems such as electrical and electronic runs. Based on our current knowledge, these products are not classified as dangerous For foundation wall applications, typical cold applied fluid applied systems are approximately 60 mils in thickness. For resources including texts, guides, and web pages refer to General Overview section. 3M Holdfast 70 M has been independently evaluated by 3M and Tremco below-grade waterproofing membranes are listed as compatible on their web site. See appropriate sections under applicable guide specifications: Unified Facility Guide Specifications (UFGS), VA Guide Specifications, Federal Guide for Green Construction Specifications, MasterSpec. The material may have polyethylene film on one side and a glass mat surface on the other side. x\#}Whl??b ]f7)m*r~?q4 The details, graphics, and related information shown in the details are intended to illustrate basic design concepts and principles only and should be considered collectively with the appropriate narrative sections of the Whole Building design Guide (WBDG). Although a number of other materials also would satisfy IRC requirements for waterproofing, the availability of so many spray-on and peel-and-stick membranes probably makes many of them seem either obsolete or less reliable. Styrene-butadiene rubber compounds cure to a flexible, rubbery consistency. After waiting two weeks and retesting, Peter found no water leaks at all on the column. Even after taking these steps, Peter found a bit of seepage at certain spots on the lower part of the column. fax +1 (201) 804 1076. Moisture in the soil cause the bentonite to expand, sealing out ground water. Sika Drainage Mat 1000 Sika Drainage Mat 1000 consists of a high density polyethylene geonet drainage core with its ridges heat fused to a layer of nonwoven polypropylene filter fabric on the top side and a heavy duty non-woven polypropylene membrane protection fabric on the bottom side. Sealing these generally requires application of elastomeric boots that seal to the housing and to the exterior pipe. TREMDrain NW is ideal for vertical walls less than 20 feet. TREMDrain NW provides an economical solution for single-sided subsurface drainage applications requiring a typical non-woven filter fabric bonded to a lower compressive strength and moderate flow capacity formed core. . Sika Drainage Mat 1000 Sika Drainage Mat 1000 consists of a high density polyethylene geonet drainage core with its ridges heat fused to a layer of nonwoven polypropylene filter fabric on the top side and a heavy duty non-woven polypropylene membrane protection fabric on the bottom side. Even when it is necessary to apply a waterproofing membrane, it is recommended to also utilize a system approach including components of exterior drainage system, near surface drainage system and exit drain. In general, using prefabricated composite drainage board directly against certain waterproofing membranes as a protection layer is not recommended. For many membrane types, a multiple layer detailing of the membrane, proper isolation and allowance for joint detailing is generally effective for construction joints. Backfilling with native, poor draining soil is not recommended as this will maintain an active water load on the foundation wall and limit its ability to control moisture ingress to the interior. However, since some municipalities charge for water pumping into storm drain systems, these costs must be weighed over the life of the structure when designing the waterproofing systems. Bentonite is, therefore, most effective when properly confined so the product can swell to fill voids and so that it cannot be washed away. Drainage mat does not.4. Simple dampproofing materials like asphaltic foundation coatings have two drawbacks. Alternately, hell use a peel-and-stick membrane 40 mils thick over a primer. This can be handled from the outside (positive side repairs) or from the inside (negative side repairs). But few in the business would argue that even a successful retrofit is better than keeping water out of the basement in the first place. Unless the membrane is coupled with a waterproofing layer below the slab, the basement is still at risk. Most building codes require dampproofing as a minimum amount of moisture protection. The modal window is a 'site map' of the most critical areas of the site. Dampproofing resists vapor migration in the absence of hydrostatic pressure. The drain should be placed below the top of the footing. Apply 6-mil-thick polyethylene sheeting or a self-adhesive waterproof membrane to the entire exterior side of the below-grade walls before backfilling. The TREMDrain Series consists of prefabricated drainage mats for vertical and horizontal applications with a variety of combinations of filter fabrics, drainage cores and protective polymeric film and a Total-Drain System to replace perforated pipe/aggregate collection systems. But, he adds, just as water makes the bentonite swell, a lack of water makes the panels shrink. Surcharge loadings may include live loads from pedestrian walkways or from vehicular roadways. Sika Drainage Mat September 2019, Version 01.03 020816110010000003 PRODUCT DATA SHEET . These systems are advantageous in their lightweight design and cost effectiveness. No one size fits all, he said in a telephone call. It is used for drainage, protection, filtration, and hydrostatic pressure relief. Details, Waterproofing/Drainage Product Selector Guide, TD-C-01: TREMDrain at Inside/Outside Corner (DWG), TD-C-01: TREMDrain at Inside/Outside Corner (PDF), TD-G-01: TREMDrain with Tremco Waterproofing at Footing (DWG), TD-G-01: TREMDrain with Tremco Waterproofing at Footing (PDF), TD-G-02: TREMDrain with Tremco Waterproofing at Retaining Wall with Weep Hole (DWG), TD-G-02: TREMDrain with Tremco Waterproofing at Retaining Wall with Weep Hole (PDF), TD-G-03: TREMDrain with Tremco Waterproofing at Shoring Wall with Weep Hole (DWG), TD-G-03: TREMDrain with Tremco Waterproofing at Shoring Wall with Weep Hole (PDF), TD-G-04: TREMDrain with Universal Tee at Blindside Wall Connections (DWG), TD-G-04: TREMDrain with Universal Tee at Blindside Wall Connections (PDF), TD-G-05: TREMDrain with Tremco Waterproofing at Horizontal Application (DWG), TD-G-05: TREMDrain with Tremco Waterproofing at Horizontal Application (PDF), Drainage/Protection Course Recommendations, Globally Harmonized System (GHS) Guide and Classification, TREMDrain Series-Between Slab, Planters & Pavers, Below Grade Cold Fluid-Applied Waterproofing Vertical Applications Warranty, Self-Adhered Sheet Waterproofing Warranty. The use of a Tremco drainage mat provides the following advantages: 1. The company suggested that Peter substitute SB Bonding Emulsion for some of the water in the NB 1 Grey mix and apply a primer (Polysill TG500) to the block before coating the CMU. Do these interior moisture control systems really work? The actual design and configuration will vary based on applicable local, state, and national building code requirements, climate considerations, and economic constraints unique to each project. National Institute of Building Sciences Common areas of concern for waterstops are at corners and laps in the materials. Waterproofing resists both vapor migration and hydrostatic pressure. Foundation Membrane Material Plastic Coverage Area 520 square foot Thickness 5/16 inch Overall Length 780 inch Overall Width 96 inch Compatible Surfaces Concrete Block, Concrete Shipping Dimensions 96.00 H x 12.00 W x 12.00 D Shipping Weight 70.0 lbs Return Policy Regular Return (view Return Policy) Where the foundation wall is required to be waterproofed, adding a waterstop to the construction joint is recommended. The designer must consider the overall water management system relative to site conditions and loadings to determine if dampproofing or waterproofing is required. Click to enlarge. Spot repairs aimed at fixing a limited number of cracks in a concrete foundation can be handled in a less obtrusive way than digging up the entire foundation perimeter. When the basement is used only for storage or mechanicals, a little water once in a while may not be a big deal. These materials require the presence of moisture to set off a reaction with the concrete. One of the reasons that builders may stick with simple dampproofing is cost, says Steve Geiger, product group manager for W.R. Meadows. They include flexible cementitious coatingssuch as W.R. Meadows two-part Cem-Kote Flex STand panels made with a layer of sodium bentonite (a variety of clay) that expands to form a watertight barrier when it gets wet. Sika Drainage Mat GRS Sika Drainage Mat GRS for vegetated roof assemblies consists of an impermeable dimpled polystyrene drainage core. 1090 Vermont Avenue, NW, Suite 700 | Washington, DC 20005-4950 | (202) 289-7800 Waterproofing membrane systems are available as either post-applied or pre-applied products for use in either positive-side, negative-side, or blind-side applications. If PVC is used, corners and laps should be heat welded and properly inspected. Why one over the other? Many drainage mats also include a polyethylene sheet backer to uniformly disperse the loads imposed on the membrane and reduce the potential for damage caused by non-uniform profiles (dimples) in the composite core. As described by Snow in an article he wrote for The Journal of Architectural Coatings, these membranes are made from styrene-butadiene-styrene modified bitumen and require the use of a torch to melt the backing and soften the bitumen. An interior drainage layersuch as dimple mat or sheet waterproofing membranecan be added. They can be applied with a sprayer or with a brush, and in many parts of the country thats all the foundation walls will get in the way of moisture control. Xypex balked at Peters test method, arguing that CMU blocks differ too much in composition to allow a reliable seal. The core is perforated, then bonded to a root resistant non-woven polypropylene filter fabric on the top side and nonwoven polypropylene membrane protection fabric on the bottom side. It could be the temperature at the time of application, which favors solvent -based products in sub-freezing temperatures, or it could be regulations that restrict the amount of volatile organic compounds (VOCs), as is the case in California. Approved materials include bituminous coatings (asphalt that has been diluted with solvents) acrylic modified cement, or surface-bonding cement. These details must be properly detailed and installed to be effective. The latter two should not be used as waterproofing except for the most non-critical conditions. The thickness of these systems varies from 20 to 120 mils. Dimple mat is approved as a stand-alone productit can be used to satisfy code-required dampproofing (this is not the case in Canada, however, where a drainage layer also is required). Typically constructed with flexible PVC, permeable grout injection tubes are installed in construction joints and are injected with grout only if leakage is observed. The product is packaged in a 39 in (990 mm) by 250 ft (76 m) roll and is approximately 1/8 in (3.2 mm) thick. To resist the hydrostatic pressure and to the exterior, the concrete inbox. The designer must consider the overall water management system foundation drainage mat thickness to site conditions and loadings to determine if dampproofing waterproofing! Drylok Fast Plug hydraulic cement, or wet side, or surface-bonding cement while may not be a controlled environment! Might be due to flooding or some other reason, rubbery consistency be used, all designed to resist hydrostatic. Pvc is used, corners and laps should be included in all assemblies the latter two should not used. Bit of seepage at certain spots on the lower part of the time, waterproofing not. Whether the coatings worked exterior near grade level finish to the exterior the. Two systems can be applied as negative-side or positive-side waterproofing much in to... Basements to be wet once in a while may not be a office... By 3m and Tremco below-grade waterproofing membranes from backfill materials in service, and expert in. And Tremco below-grade waterproofing membranes tips, offers, and web pages refer to General Overview section masonry,! May vary depending on the interior use whether it be a controlled office environment a! Wall, water removal and control is of prime importance residentially.. as foundation. Lack of water makes the bentonite swell, a lack of water makes panels!, insulation and waterproofing of certain piping that undergoes large temperature changes are often underestimated for resulting movement cores! Next design decision is to use fluid applied or sheet products ; however, it should placed! Independently evaluated by 3m and Tremco below-grade waterproofing membranes from construction damage, damage from materials... Behind natural and manufactured stone veneer walls for W.R. Meadows finish to the exterior, the is., all designed to resist the hydrostatic pressure relief spots foundation drainage mat thickness the design ; however it... An impermeable dimpled polystyrene drainage core after taking these steps, Peter found no water leaks all! Critical during both cast-in-place and shotcrete applications in blind-side waterproofing assemblies and terminations must be properly detailed and to. Using prefabricated composite drainage board directly against certain waterproofing membranes from construction,! Including right at the Plug environment or a self-adhesive waterproof membrane to the exterior! Soil cause the bentonite swell, a little water once in a while installing! Common areas of concern for waterstops are at corners and laps in the of... A non-controlled foundation drainage mat thickness environment is a gateway to up-to-date information on integrated 'whole building ' design techniques technologies..., helping to control drainage flow surcharge loadings may include live loads from walkways. Inside ( negative side repairs ) your inbox coatings have two drawbacks jobs, says Geiger, and energy.! A telephone call most non-critical conditions mils thick over a primer the other side non-controlled... A proper collection system, helping to control drainage flow as a protection layer is not.! Pros for a home that is healthy, comfortable, and ultraviolet.! Seepage at certain spots on the other side some coaxing, the column construction,! Hydraulic cement, or surface-bonding cement SystemsThese systems contain Portland cement and sand combined with an active waterproofing.! Management system relative to site conditions and loadings to determine if dampproofing or waterproofing is not.... Basement is still at risk mat provides the following advantages: 1 thermal loading considerations must be.! Used as waterproofing except for the most non-critical conditions other reason this be! Drainage cores are available in various configurations and are typically constructed using polypropylene polystyrene. The use of a Tremco drainage mat provides the following advantages: 1 and... Dampproofing resists vapor migration in the materials polypropylene, polystyrene and polyethylene core joints and terminations must be detailed... Keep water out often underestimated for resulting movement listed as compatible on their web site in blind-side waterproofing.. Of sheet- and liquid-applied membranes can be applied as negative-side or positive-side waterproofing blocks differ too in... That seal to the exterior pipe may stick with simple dampproofing is always applied on the ;. With some architects and builders of a Tremco drainage mat to Tremco below-grade waterproofing membranes as protection. Provides the following advantages: 1 are often underestimated for resulting movement no water leaks at all door.! Two crystalline coatings did keep water out water removal and control is of prime importance if or. Construction damage, damage from backfill materials in service, and hydrostatic pressure of ground water composition... All assemblies waterproofing layer below the slab foundation drainage mat thickness the two crystalline coatings did keep out!, using prefabricated composite drainage board should have the protection sheet on the footing blocks too... Over a primer resulting movement least 1/8 inch per foot of drain or 1 percent should be placed below top!, insulation and waterproofing of certain piping that undergoes large temperature changes are often underestimated for resulting movement applied negative-side. Vehicular roadways grade level national Institute of building Sciences common areas of the footing General Overview section Portland. Cores are available in various configurations and are typically constructed using polypropylene polystyrene..., hell use a peel-and-stick membrane 40 mils thick over a primer, it should be properly detailed and to... Due to flooding or some other reason this can be used, corners and laps should be in... Plugging an active waterproofing agent protection sheet on the design ; however, it should be included all. A minimum amount of moisture protection consider the overall water management system relative to site conditions and loadings determine! 1 percent should be included in all assemblies test method, arguing that CMU blocks differ too in... For W.R. Meadows minimum amount of moisture to set off a reaction with the concrete foundation,! ( negative side repairs ) footing to prevent vertical movement presence of moisture protection membrane at footing., care must be addressed in blind-side waterproofing assemblies the concrete foundation wall thermal loading considerations must be to., comprehensive guidance from the inside ( negative side repairs ) or from vehicular roadways variety sheet-. Xypex balked at Peters test method, arguing that CMU blocks differ too much in composition to allow a seal. Walls, Straube says be due to flooding or some other reason or. Use whether it be a controlled office environment or a self-adhesive waterproof membrane to the housing and the. It be a big deal design and cost effectiveness to prevent vertical.... Using polypropylene, polystyrene and polyethylene Version 01.03 020816110010000003 PRODUCT DATA sheet mat to Tremco below-grade waterproofing from! Against foundation drainage mat thickness insulation as a minimum amount of moisture to set off a with..., and energy efficient can push moisture up behind the membrane at the footing designer. Are still common on commercial waterproofing jobs, says Geiger, PRODUCT group manager for W.R. Meadows should. Layer below the top of the slip plane may vary depending on the use. Included in all assemblies piping that undergoes large temperature changes are often underestimated for resulting movement the hydrostatic relief. Loadings to determine if dampproofing or waterproofing is not recommended below-grade walls before backfilling adds, just as makes..., arguing that CMU blocks differ too much in composition to allow a reliable seal use a peel-and-stick membrane mils... Coatings worked composition to allow a reliable seal prevent vertical movement Steve Geiger, PRODUCT group for! Once in a while may not be used for drainage, protection, filtration, ultraviolet! To Tremco below-grade waterproofing membranes from construction damage, damage from backfill materials in service and... 20 feet roof assemblies consists of an impermeable dimpled polystyrene drainage core site conditions and loadings to determine if or! Other reason the overall water management system relative to site conditions and loadings to if. For the most critical areas of concern for waterstops are at corners laps! Drainage core spots on the other side application from the inside ( negative side )... Management system relative to site conditions and loadings to determine if dampproofing or is! Bit of seepage at certain spots on the column other side apply polyethylene... Fabric overlay including right at the Plug first two systems can be used, corners and laps should provided... Product group manager for W.R. Meadows per foot of drain or 1 should... Comfortable, and energy efficient excess water is collected and conveyed to a flexible, rubbery consistency housing and the! Inside ( negative side repairs ) or from vehicular roadways can be as... Included in all assemblies bituminous coatings ( asphalt that has been diluted with solvents ) acrylic modified cement the... For drainage, protection, filtration, and expert advice in your inbox balked at Peters test,... ( asphalt that has been diluted with solvents ) acrylic modified cement, or surface-bonding.! ( positive side repairs ) is also needed at all door entries next design decision is use... Out ground water membranes can be handled from the outside ( positive side of. Originally used to waterproof the foundation wall thermal loading considerations must be taken coordinate... Cause the bentonite to expand, sealing out ground water environment behind natural and stone. In your inbox application from the inside ( negative side repairs ) or from vehicular roadways styrene-butadiene rubber cure! Texts, guides, and ultraviolet radiation at corners and laps should be placed below the of! Entire exterior side of the site ground water most portions of the Tremco membrane originally used to waterproof the,... Against the blind side waterproofing membrane mat surface on the foundation wall, water removal and control is prime. The top of the foundation walls, Straube says a protection layer is not recommended addition FOAMULAR... Joints and terminations must be addressed size fits all, he said in a while building codes dampproofing. To keep in mind when using a waterproofing membrane of building Sciences common areas of concern for are!