The choice of plumbing materials is essential to guarantee a long-lasting, high-performance installation. PER (cross-linked polyethylene) and multilayer have become modern alternatives to copper or PVC pipes, offering simpler installation and excellent resistance. Depending on use, one or the other may be more suitable.
What are PER and multilayer?
PER is a flexible plastic material used for drinking water supply and heating circuits. Easy to install, it requires no welding, making it accessible even to non-professionals. However, it is UV-sensitive and cannot be used for surface-mounted applications without a protective sheath.
Multi-layer pipe combines the advantages of PER and metal, thanks to its structure composed of polyethylene and a layer of aluminum. It is more rigid than PER, which means it can be installed face-to-face without risk of deformation, while offering better resistance to temperature variations.
Why choose PER?
This material is appreciated for its ease of installation and affordable cost. It doesn’t rust, limits condensation and reduces noise pollution caused by water flow. Thanks to its flexibility, it can be installed with fewer fittings, reducing the risk of leaks. However, its thermal expansion is greater and it is not always suitable for visible installations.
Benefits of PER :
- Easy, seamless installation
- Corrosion resistance
- Economic price
Why choose multilayer?
More rigid than PER, it is more resistant to pressure and high temperatures, making it ideal for heating and hot water circuits. Its low coefficient of thermal expansion makes for more stable installation. Although more expensive, its durability makes it an excellent investment.
Advantages of multilayer :
- Better resistance to high temperatures
- Less thermal expansion
- Surface-mounted installation possible
Which material to choose for your installation?
PER is often preferred for concealed installations, while multilayer is recommended for hot water circuits and visible installations. If you’re looking for an economical solution, PER is a good choice, but for a more durable and aesthetically pleasing installation, multilayer is preferable.
Call on Leader Services
The choice and installation of your plumbing network must be carried out with care to guarantee the system’s performance and longevity. Leader Services will support you in your project and ensure professional installation, tailored to your needs.
- Discover our plumbing services: Leader Services – Plumbing
- Need a professional? Contact us here: Leader Services – Contact
Conclusion
PER and multi-layer are reliable, modern alternatives to traditional pipes. The former seduces with its flexibility and attractive price, while the latter offers greater resistance and more meticulous installation. For a high-performance, long-lasting installation, it’s advisable to call in a professional.










