1

In preparation for a big job I found some PEX on craigslist.

It appears to have been exposed to the elements but all in all it looks fine.

http://images.craigslist.org/00J0J_kqRj1PQAivO_600x450.jpg

Can PEX withstand a little environmental conditions without loosing it's stability?

1 Answer 1

2

NO. PEX degrades in the presence of UV radiation. A few days exposure reduces its lifetime resistance to chlorine by 50%. Source: http://www.coengineers.com/preventable-problems-with-pex/

6
  • 1
    Got it. So pass on the deal? Jun 4, 2015 at 22:57
  • 1
    Unless you want to rip it out and replace it in 12-20 years, I would pass. :) Then again, there's no way to know how much UV exposure PEX you buy in a store has had anyway...
    – iLikeDirt
    Jun 4, 2015 at 23:02
  • I am doing this before I sell my house. I'll just get it at HD. Jun 4, 2015 at 23:03
  • 1
    Also, it's fine if you have a whole-house filter that removes chlorine, as that's the oxidizing element in the water that degrades PEX; the sacrificial anti-oxidants in the plastic that protect against this are themselves degraded by UV radiation!
    – iLikeDirt
    Jun 4, 2015 at 23:03
  • Cool. Yeah no filtering here. I'll just go to the big box. Jun 4, 2015 at 23:05

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.