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Any pipe that passes under a footing or through a foundation wall shall be provided with a relieving arch. Alternatively, a pipe sleeve may be built into the foundation wall. Such sleeve shall be two pipe sizes greater than the pipe passing through the wall.
A water, soil vent or waste pipe shall not be installed outside of a building, in attics or crawl spaces, nor concealed in outside walls or in any other place subjected to freezing temperature, unless adequate provision is made to protect it from freezing by insulation or heat or both. Water service pipe shall be installed not less than 60 inches (1525 mm) below grade.
In concealed locations where piping other than cast-iron or galvanized steel is installed through holes or notches in studs, joists, rafters or similar members less than 1 1/2 inches (40 mm) from the nearest edge of the member, the pipe shall be protected by shield plates. Protective shield plates shall be a minimum of 1/16 inches (1.6 mm) thick steel, shall cover the area of the pipe where the member is notched or bored, and shall extend a minimum of 2 inches (50 mm) above sole plates and below top plates.
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