Copper has been at the forefront of the plumbing industry for centuries, but in the last two decades, new materials such as multi-layer composite pipe (MLCP) have emerged, positioning themselves as alternatives to copper in construction.
When selecting plumbing materials, efficiency, safety, sustainability and durability are key considerations. As human consumption continues to harm our environment, suppliers need to become more aware of the impact of their materials on future generations.
MLCP is marketed by plastics manufacturers as a fully recyclable product but, in reality, its multiple layers of plastic and aluminium glued together make it virtually impossible to recycle. This creates a complex degradation process of over 450 years, in which the material breaks down into harmful microplastics which poses risks to human and environmental health.
Copper, on the other hand, is a 100% recyclable material – demonstrated by the fact that since 1900, around two-thirds of the material is still used today. As a more durable material that lasts close to 80 years, coppers longevity and recyclability mean that its carbon footprint is much less than MLCP, as well as being more cost efficient over time.
The thermal conductivity of copper also means it heats water faster and uses less energy in transferring heat than MLCP, which is predominately made from plastics with some aluminium content. In fact, copper provides 401W/mK compared to aluminium’s 237W/mK.
Furthermore, MLCP is susceptible to warping, damage and leakage when exposed to higher temperatures or used in outdoor areas. In comparison, copper’s high melting point and UV radiation resistance means it can withstand high temperatures and pressures and is less likely to need repairs over time.
Copper’s strengths also lie in its antimicrobial properties, which prevent the growth of harmful bacteria and rust, resulting in the water from its pipes being safe to drink. Due to MLCP’s plastic content, there is a risk of the chemicals diluting the water and posing a health risk when consumed.
As MLCP is a relatively new material compared to copper piping, there is a lack of research on the potential risks of its prolonged use – whereas copper has plenty of evidence from the last 2,500 years to prove it the superior material.
With the increasing stress we put on our planet, changes such as the type of pipes we use in our buildings can make significant differences to our environment and the reduction of greenhouse gases.
To find out more, please visit: https://www.cuspuk.com/.