How To Insulate Pex Pipe In Attic

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.

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 I looked in the attic and noticed that all of the plumbing that once was in the slab had been replaced by pex and was now in the attic. 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. Remove moisture dirt and oil from the surface of the pex tubing with a clean rag.

While pex does not ordinarily burst in the cold the water in the pipes can still freeze. Once my attic warms up after a few hours the next day the pipe thaw. Pex won t ruin if frozen. 2 align the slit side of a length of flexible closed cell pipe insulation with the tubing.

Open the insulation piece at the slit and slide it over the pipe. Tape the end seams of each insulation length with insulating tape. This will allow you to slip the insulation over the pipe corner easily. For corner joints that need to be insulated cut a simulated miter joint by cutting the insulation at a 45 degree angle.

Traditional foam is the most common way to insulate pipes. The key with these foam rolls is to seal the open slits with tape once they are installed. I have a run of pex in my attic that freezes when the outdoor temps falls to about 15 degrees. It is important to insulate pex pipe in an attic particularly in cold weather areas.

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. Continue this process over the entire length of piping in your attic. It s smart to insulate water supply piping exposed to. These foam rolls have a slit down the middle and attach to existing pipes with ease.

This will help keep the product from slipping off the pipe and increases their insulating properties. Insulation from the experts.