While pex does not ordinarily burst in the cold the water in the pipes can still freeze.
Pex pipe in attic.
The new plastic fashioned into flexible pex pipe also known as pex tubing arrived in the us in the 1980s initially for radiant floor heating systems.
Yes the cold water is hot in the summer very hot in fact due to the heat of the attic.
A wet rag should easily wipe away any visible dirt or debris.
The fact that it is pex has little to do with it although it is possible that it provides a bit higher thermal resistance than say copper.
Yes rodents will chew absoultely eveything they step on.
Moving plumbing pipes from a slab to an attic use pex pipe.
Pex cpvc poly back in the day even copper in the attics etc.
When running pipe from a slab to an attic use cross linked polyethylene tubing or pex instead of copper.
The water inside is going to get hot.
It is important to insulate pex pipe in an attic particularly in cold weather areas.
Foam is used most commonly and generally works well.
The surface of pex piping can become grimy over time so before insulating you should take just a few minutes to clean it off.
Sometimes they have been insulated makes very little difference to the temp on a july or august afternoon.
If you insulate the pipe the water will warm more slowly.
The flexible tubing is embedded in a.