Cartoon Network

25 March 2020

[DIY] Re: Outdoor PEX

 

Ron Johnson wrote:

I find out that due to UV light deteriorization, PEX cannot
> be used outside.  I thought of using the foam insulation but
> that, too has UV deteriorization problems.

Is there a simple way to solve this situation?

Hi Ron;

 The simple UV protection strategy is to paint it black.
While that will also make it get hotter in sunlight, the
black paint absorbs and blocks the UV rays that might
get through a lighter color paint.   Regular PEX tubing
(not the aluminum reinforced PEX AL PEX) can freeze
repeatedly without bursting..   Even the metal fittings
will not burst, with the flexible PEX tubing to absorb
the expansion from freezing.  Off course, that might
crack an inflexible paint, that could then chip off.
So, Insulate the PEX with black insulation, and it
should be relatively trouble free, unless some
critter likes the taste of the insulation.    The
Solar industry has been successfully dealing
with these issues for decades 

-Laren Corie

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Posted by: Laren <sylvanabode@gmail.com>
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