Pex and UV

Seaneys · Jun 12, 2007

Hello,

If I understand it correctly, I need to use barrier pex with my cast iron boiler and radiators. From what I have read, barrier PEX is sensitive to UV and needs to be protected from direct contact with sunlight.

The problem is that I need to run pex across an unprotected basement wall before it goes into the studded walls. The room has a small window at the top (2'x3') that I keep a curtain on... How stringent is the UV requirement? Is there a sheathing that I can buy to protect the PEX?

Thanks,
Steve

hj · Jun 13, 2007

uv

It is direct UV you have to worry about and if you are really worried, just run it through a larger sized PVC pipe at that point.

Sponsor · 2022-01-29T12:20:58-0800

Rancher · Jun 13, 2007

Or you could do what we do with PVC outdoors... paint it.

Rancher

Seaneys · Jun 13, 2007

Painting PEX

Painting it is a cool thought. I know the inspector hates the fact that PEX can look messy. I'm picturing unique colors for each run. Messy by organized.

Is there any type of paint that is recommended?

Thanks.
STeve

Master Plumber Mark · Jun 14, 2007

paint it with a dark latex.

probably a dark latex paint would be best....

if it is on ly a short run in front of a window

you could also just put armafleex on that spot.

Cass · Jun 14, 2007

You could paint the window and install a light

Rancher · Jun 14, 2007

I seem to remember that UV is filtered by normal window glass.

Rancher

Jadnashua · Jun 14, 2007

Not 100%, and only UV-B. Low-e glass systems helps a lot.

Construct30 · Jun 16, 2007

Like he said just use the pipe insulation it works great and looks more professional. The wrong paint can damage the pipe.

Pex and UV

Seaneys

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hj

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Rancher

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Seaneys

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Master Plumber Mark

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Cass

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Jadnashua

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