Hydrostatic and Gas Vapor Barrier Systems Waterproofing is critical to the long-term structural integrity of a building. Water and gas vapor infiltration is typically difficult to access and extremely difficult to remedy, resulting in it being the leading contributor to construction defect litigation. Preventing infiltration starts with proper design, good construction practices and paying attention to material selection. It is important that the durability of the design and materials selected for a below-grade application be built to approximate the overall service life of the structure. The Design Stage Tremco Commercial Sealants & Waterproofing is uniquely qualified to assist in the proper selection and specification of products to provide comprehensive solutions for even the most demanding below-grade applications. Experienced, knowledgeable field sales representatives in every major market across the United States and Canada coupled with the technical expertise of our Technical Services Group provide assistance with material selection, specifications, system design, testing and on-site support. Approved Applicators Applicator training and experience is extremely important and Tremco local field sales representatives have worked with a select group of approved applicators who have made a commitment to quality installation of below-grade waterproofing and have experience on the most complex projects. These applicators have been trained by Tremco on waterproofing system installation and also by the manufacturer of the heat welding equipment for treatment of seams. Tremco field sales representatives are available to attend pre-construction meetings, mock-up assistance and offer on-going training and on-site support to help eliminate guesswork and uncertainty. Additionally, Tremco can recommend third-party inspection firms who are knowledgeable and experienced with Tremco systems for additional support. Independent Third-Party Inspections Any number of factors can impact below- grade installations and work of subsequent trades, such as expedited schedules, construction traffic and exposure to the elements for extended periods. To avoid the potential for a problem down the line, monitoring by an independent third-party inspector can ensure compliance with project requirements during installation and during subsequent work being done by other trades. Inspections should include sign-off by consultants or other appropriate parties on any seams for ultimate assurance of watertight performance. Materials Few manufacturers can provide comprehensive waterproofing solutions including effective terminations and connectivity to above grade conditions. Waterproofing and/or gas mitigation protects the integrity of a structure and its occupants by forming a continuous barrier that prevents water and gas from entering the building envelope and occupied space. In order to eliminate potential sources of water and/or gas infiltration there must be continuity, without areas of weakness, such as at transitions or penetrations. Connections must be able to accommodate any normal movement of the building structure. Of critical importance is any incompatibility between the membrane, detailing and any connecting components which can result in membrane failure and ultimately lead to water infiltration. Tremco Commercial Sealants & Waterproofing offers comprehensive building solutions from below-grade to the roof. Products are formulated and tested to ensure long term performance not only in laboratory settings but real-world conditions where they may abut, adjoin or overlap with other components or systems. Withstanding Water from Hydrostatic Conditions and Gas Vapor Requires An Engineered Solution With Proven Performance Paraseal GM/LG 60 mil HDPE with Bentonite facing the installer Superstop Waterstop at all cold joints 5" overlap with Heat Welded Seam 24" corner starter strip of Paraseal GM/LG 60 mil HDPE