How To Insulate Pex Pipe In Attic

Pex won t ruin if frozen.

How to insulate pex pipe in attic.

There are no manufacturer guarantees it won t fail. I looked in the attic and noticed that all of the plumbing that once was in the slab had been replaced by pex and was now in the attic. 2 align the slit side of a length of flexible closed cell pipe insulation with the tubing. It is important to insulate pex pipe in an attic particularly in cold weather areas.

Open the insulation piece at the slit and slide it over the pipe. For corner joints that need to be insulated cut a simulated miter joint by cutting the insulation at a 45 degree angle. This will help keep the product from slipping off the pipe and increases their insulating properties. Remove moisture dirt and oil from the surface of the pex tubing with a clean rag.

Once my attic warms up after a few hours the next day the pipe thaw. The key with these foam rolls is to seal the open slits with tape once they are installed. Tape the end seams of each insulation length with insulating tape. The water pipe interface with laminar flow is around r 0 01 and the pipe air interface is around r 0 5 so the pipe wall has little impact.

Pex pipe bottom line. Now heat traveling the length of the pipe on the other hand the difference between copper and pex is enormous. It s smart to insulate water supply piping exposed to. So far no leaks.

These foam rolls have a slit down the middle and attach to existing pipes with ease. Insulation from the experts. Insulating your pipes is never a bad move to make and with piping that s as versatile as pex piping you ll want to do everything you can to protect it. Traditional foam is the most common way to insulate pipes.

San antonio is a temperate climate and it rarely gets below freezing and i know pex is more resilient when is comes to freeze ups as the plastic tends to expand as needed. I have a run of pex in my attic that freezes when the outdoor temps falls to about 15 degrees.