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PEX Piping vs. Copper Piping: What’s the Difference and How to Care for Them

When it comes to plumbing in your home, the choice of piping can make a significant difference in the longevity, efficiency, and maintenance of your system. Two of the most common types of piping are PEX (cross-linked polyethylene) and copper. Let's dive into the history, advantages, and care tips for both to help you make an informed decision.


A Brief History


Copper Piping: Copper has been used in plumbing for centuries, dating back to ancient civilizations. The Egyptians used copper pipes as early as 2500 BC! Its popularity surged in the 20th century due to its durability and reliability.

PEX Piping: PEX is a relatively modern innovation, developed in the 1960s. It gained traction in the 1980s for its flexibility and ease of installation. Today, PEX is widely used in residential plumbing due to its versatility and cost-effectiveness.



A collection of copper pipes in a complex plumbing network
Copper pipes in a complex mechanical application, to show the versatility of the copper piping.


Why Choose Copper?

  1. Durability: Copper pipes can last up to 50 years or more when properly maintained.

  2. Heat Tolerance: Copper can withstand high temperatures, making it ideal for hot water lines.

  3. Natural Resistance: It’s naturally resistant to bacteria and UV rays.


Care Tips for Copper Pipes:

  • Regular Inspections: Check for corrosion or green stains, which indicate oxidation.

  • Water Quality: Ensure your water isn't too acidic, as this can corrode copper over time. Installing a water softener can help.

  • Proper Insulation: Insulate pipes to prevent freezing in cold climates.



A closeup image of blue plastic pex piping that you might see in a modern day home
Modern day PEX piping and some various fittings used to connect them. Note that the PEX pipe is flexible.


Why Choose PEX?

  1. Flexibility: PEX pipes are highly flexible, reducing the need for joints and fittings, which in turn lowers the risk of leaks.

  2. Cost-Effective: Generally cheaper to purchase and install compared to copper.

  3. Resistance to Scale: PEX doesn’t build up scale or corrosion, ensuring a longer lifespan without degradation of water flow.


Care Tips for PEX Pipes:

  • Avoid UV Exposure: PEX should not be exposed to direct sunlight as UV rays can damage the material.

  • Proper Support: Ensure pipes are supported properly to prevent sagging.

  • Temperature Caution: While PEX handles freezing better than copper, it’s still good practice to insulate pipes in cold areas.


Modern Trends: Why PEX is Gaining Popularity

In recent years, PEX has become the go-to choice for new home constructions and remodels. Its flexibility allows for quicker installations and fewer labor costs, which can be a significant factor in large projects. Additionally, PEX's ability to expand and contract without bursting makes it particularly appealing in regions with extreme temperature fluctuations.


Making the Right Choice for Your Home

Ultimately, the choice between PEX and copper depends on your specific needs and circumstances. Copper's longevity and proven track record make it a solid choice for many, while PEX's affordability and ease of installation offer compelling benefits for modern homes.

Quick Comparison Chart

Feature

Copper

PEX

Lifespan

50+ years

40-50 years

Cost

Higher

Lower

Installation

More labor-intensive

Easier and faster

Flexibility

Rigid

Highly flexible

Heat Tolerance

Excellent

Good

Resistance to Freeze

Poor

Good

Whether you opt for the time-tested reliability of copper or the modern convenience of PEX, understanding the strengths and care requirements of each will help you maintain a robust plumbing system for years to come.




Have more questions or need expert advice? Contact us at Twenty Four Hour Plumbing LLC – we're here to help keep your home's plumbing in top shape!


 


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