Originally Posted by
Billy Stephens
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Looking in the Plumbing Appendix it runs approximately from Jacksonville Fl. westward across Tallahassee the Fl. Panhandle extending into Texas.
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Yes, a winner.
Billy, the easiest way to remember that line is to think: If the house is above US I-10, *ALL* of the pipes outside the thermal envelope need to be insulated, supply, waste, and vent.
If the house is below I-10 ... no problemo.
I-10 runs approximately along the line given by the cities listed in the Plumbing Appendix.
I pointed this out as Robert, and the original photo, are in SC, which is quite a ways above I-10.
In other words ... Robert should not have been able to see that waste and vent, it should be insulated and then boxed in, whereby the exposure to UV becomes a non-issue.
