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<br />49. The walls of the house were damaged by a 4-ft water head. This <br /> <br /> <br />damage is indicated by the test data in Figures 33-47. The unloading curves <br /> <br /> <br />show permanent deformation in the walls. An inspection the next morning after <br /> <br />the water load had been removed revealed that the brick wall had visual <br /> <br /> <br />cracks in the mortar joints. <br /> <br /> <br />50. Plastic was placed over the earth berm and under the aluminum strip <br /> <br /> <br />to prevent water loss through the highly pervious soil during the test. Some <br /> <br /> <br />of the leakage problems occurred because of this installation. It was dis- <br /> <br /> <br />covered that a weatherstripping material did not stick to the plastic where it <br /> <br /> <br />was placed at the intersection of the plastic and aluminum strip. However, <br /> <br />it should be noted that the plastic under the aluminum strip would not be <br /> <br /> <br />present in an actual flood-resistant construction. <br /> <br />Conclusions <br /> <br />51. A block or brick-veneer house will not support more than about 3 ft <br /> <br /> <br />of water without damage. The system was considered valid; however, the seal- <br /> <br /> <br />ing snap used in the test is not recommended because of the difficulty in <br /> <br /> <br />attaching the sheeting. <br /> <br />17 <br />