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Old 09-27-2008, 11:52 AM   #1
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PEX for outside use?


I posted this in another forum but got little response.

I know that you are not supposed to use PEX outside because the sunlight deteriorates it. Question is there any PEX rated for outside use? Reason I ask is I have some outside plumbing at my cottage (in South Carolina). I try to drain it for the winter but not always well enough. If we have a hard freeze (rare) the copper or CPVC I have used in the past will split. I understand PEX is more forgiving of freeze and thawing. Any type of PEX rated for outside use?

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Old 09-27-2008, 12:25 PM   #2
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PEX for outside use?


I'm unaware of any PEX that is rated for outdoor use in a non-burial appliaction. As you have heard, UV will cause it to deteriorate. In a crawlspace of a home, I think you'll be just fine...It is a great product for that kind of application.

Tell us exactly what you're wanting to do and we can probably be of more assistance. Where on the building is the waterline you're wanting to replace?

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Old 09-27-2008, 01:11 PM   #3
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PEX for outside use?


The piping in question feeds an outside shower at a raised beach house, also two hose bibs that are attached to the outside of the structural piers. The majority of the piping is under the building, although it is on the exterior it never gets any sun. Note this is a non-winterized, 3 season cottage.
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