Residential plumbing systems are tasked with supplying water and removing waste from homes. The two main materials that can be used to build pipes are cross-linked polyethylene (PEX) and copper. Because of their durability, copper pipes have been used to move water for thousands of years.
PEX is a newer material that has become more popular in recent years. It’s a flexible and affordable material that offers several advantages. Copper is dependable, which is why it’s a favorite among plumbers. This guide offers an in-depth comparison of PEX vs. copper piping.
What Is PEX Piping?
Cross-linked polyethylene (PEX) piping was introduced to the market during the late 1960s. However, it wasn’t used much in new construction until the 1990s. At first, PEX pipes were implemented in radiant floor heating systems. The high performance, ample flexibility, and low pricing available with PEX pipes have driven the increasing popularity of this material.
PEX is built by modifying the polyethylene material’s molecular structure to permanently link its polymer chains. This material is used to create plumbing system pipes because of its durability and flexibility.
What Is Copper Piping?
Copper pipes have been present in plumbing systems for decades. They are commonly used by plumbers because of their ability to accommodate high pressures and temperatures. This material is also resistant to UV damage, which means that it can be installed in outdoor areas. One of the drawbacks to copper piping is that it can be affected by scale buildup and corrosion, both of which can facilitate leaks and lower water pressure. Plumbers often opt for copper piping because of its long-term reliability.
Durability and Lifespan
One of the most significant differences between copper and PEX piping involves durability, which can play a role in the material’s lifespan. PEX piping has an average lifespan of around 25-40 years. The amount of time the piping lasts mainly depends on the application it’s being used for as well as the manufacturer. Even though the lifespan of PEX is shorter than that of copper piping, it should still last for decades. The material offers high corrosion resistance and flexibility.
As for copper pipes, they can last for more than 50 years if you properly maintain them. As mentioned previously, scale buildup and corrosion can negatively impact this piping material. Regular inspections will allow you to detect issues with the piping before leaks develop.
Maintenance Requirements
PEX and copper piping also differ when it comes to the amount of maintenance that’s needed. In most cases, PEX piping doesn’t require much maintenance. However, a regular tune-up can ensure the reliability and longevity of these pipes.
It’s also important that the piping is never exposed to solvents and chemicals that might degrade the materials over an extended period. Keep in mind that PEX piping has some pressure and temperature limitations.
Copper piping needs more maintenance than pipes made from PEX materials. If you request an inspection of your home’s copper pipes, our plumbers at Benjamin Franklin Plumbing will check for signs of corrosion or leaks. We’ll also look for any indication of scale buildup that might eventually cause blockages. Copper piping shouldn’t be exposed to harsh chemicals or acidic substances. PEX piping offers better resistance to corrosion and scale buildup than copper piping.
Installation Process
PEX piping comes with a fast and easy installation process. Since this material is flexible and can be manipulated around corners, plumbers don’t need to use special fittings and tools during the installation process.
Copper piping usually comes with a more time-consuming installation process because of how rigid the material is. Plumbers are tasked with making precise cuts to ensure the material can be installed around corners and obstructions. Extensive soldering is required during installation.
Environmental Impact
You may also want to be aware of the environmental impact that these materials have. PEX is often used alongside brass, which means that these pipes shouldn’t produce a considerable amount of greenhouse gases. Copper emits ample greenhouse gases. To obtain copper and create pipes, miners need to strip mine to reach the copper ore. This process produces a lot of waste.
Polyethylene is a byproduct of natural gas or oil, which means that an additional extraction process isn’t required. As for the manufacturing process, facilities that produce this material must comply with the Sustainable Manufacturing Standard. The copper manufacturing process uses much more energy.
Costs
Even though copper pipes are still widely used for plumbing projects, they cost around 20%-80% more than PEX pipes. Labor expenses can also be higher because of the extended installation process. If the pipes aren’t properly maintained, repair costs may be higher as well. However, copper pipes last longer than PEX ones, which somewhat balances the cost advantage that PEX provides.
Which Piping Material is Better?
Both PEX and copper piping have their advantages. For example, PEX pipes offer affordability and flexibility. They’re also easier to maintain. On the other hand, PEX pipes last longer. Weigh the pros and cons of each material before choosing one for your home.
We provide Pelham, AL homeowners with comprehensive plumbing solutions. If you require a sewer line replacement or a house repiping, call us today to schedule a visit from our team.