Criterion 6.5.17 Underground Piping

Criterion text:
Underground piping subject to vehicular traffic shall be installed to withstand the additional loading applied by this traffic. The trenches and backfill shall be free of sharp objects in contact with the pipe.

Comments:
Although not common, routing piping from one building to another may be required. In most cases this is because solar access is more suitable at one building while the water system is located in another. The installer must follow the requirements of this criterion, construction industry standards and meet local code requirements.

Figure 1 shows examples of where piping would have to be routed from one building to another. In this case, the water heater was located in the basement of the house at left, while the solar collectors were to be mounted atop a garage to the right of the house and across the fifteen foot driveway seen at the bottom right. The installer would have to meet the above requirements when installing the piping underneath this driveway since vehicular loads are placed upon it.

Figure 1

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