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What is the average life expectancy of PEX pipe?
Friday, July 6, 2018
The estimated lifespan of PEX (Cross-linked Polyethylene) pipe is 40 to 50 years, with an average of 45 years. Although it has been on the market for many years and primarily used for hydronic heating, PEX has become much more popular for water supply piping within the last decade. It comes in white and black, or can be color-coded in blue and red for cold and hot water pipes, as shown above. It is also often installed using a central manifold system, as shown below.
Here’s a graph that compares the life expectancy of PEX to other types of pipe commonly used in residential plumbing.
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components.T o understand the basis, potential use, and limitations of lifespan ratings, see our blog post ”How accurate are the average life expectancy ratings of home components? Are they actually useful?”
Also, see our blog posts Are plastic pipes (PVC, CPVC, and PEX) safe for drinking water? and Can PEX pipe be installed outside? and Can PEX pipe be connected to a water heater? and Is PEX pipe freeze resistant?
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