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<br /> <br />system is not recommended unless a permanent installation is used where care <br />and tests can be performed during the installation when flooding is not emi- <br />nant. A cutoff barrier, sump, and pump must also be used unless some cutoff <br />barrier is already in place (e.g., a concrete slab sealed to the base of the <br />building and placed over an adequate area to sufficiently reduce under- <br />seepage). The two seal strips tested are shown in Figures 48 and 51. Leaks <br />can develop in the snap-type waterproofing system if irregularities on the <br />snap hold it open, if the plastic is wrinkled under the snap, or if the <br />corners are not handled with care. Many minor details, depending on the <br />particular situation, must be cared for adequately or leaks can develop. <br />If the physical construction of the building to be waterproofed will <br />allow a simple system such as the one tested in Tulsa, Oklahoma (Part VI), the <br />simple system should be used to: <br />. Eliminate the problems associated with the snap at the base of the <br />house. <br />. Provide a cutoff barrier below the building foundation. <br />. Remain in place and allow easier and faster activation. <br />. Give much more dependability to the system. <br /> <br />62 <br /> <br />