Copperweld offers a future-ready solution that’s energy efficient, sustainable, and code-compliant.

Modern Homes Require More Wire

From EV chargers and induction ranges to smart lighting systems and whole-home battery backups, today's homes are more power-hungry than ever. For homeowners, it means a smarter use of resources — improving energy efficiency, conserving copper and maximizing the value of their home. For builders and electricians, that means more wire is needed to support more devices, more circuits, and more demanding electrical layouts.

More Wire, More Impact

Over the past 50 years, the average size of a new U.S. home has grown by more than 60%^,1 while the number of electrical outlets per home has nearly doubled.² Rooms that once needed a single circuit now often require two or more. And where 1,000 feet of NM-B building wire might have sufficed in the 1970s, today’s code-compliant homes —especially those with smart devices, open layouts, and EV charging — can require two to three times that amount.³

This increase has real consequences for electrical contractors and builders:

• More wire means more exposure to copper price fluctuations
• Larger home footprints lead to longer branch circuits and higher energy loss if not managed well
• Higher electrical demand per room means conductor performance and consistency matter more than ever
• Every added foot of wire increases environmental impact — making efficient, copper-conscious choices even more valuable

The more wire a home requires, the more important each foot becomes — and selecting the right material can make a measurable difference in cost, efficiency, and long-term reliability. As homes continue to grow in size and sophistication, the type of wire behind the walls matters more than ever.

When Traditional Materials Fall Behind Modern Needs

Copper NM-B has long been the go-to for residential wiring. But as demand increases, the drawbacks of using solid-copper wire have become harder to ignore:

• Copper price volatility can derail budgets mid-project
• Traditional copper wiring uses more of a critical mineral resource, even when smarter alternatives are available
• Copper theft remains a real threat on job sites

For projects with growing circuit counts and tight margins, copper wire is starting to look like an outdated solution.

Enter Copperweld Building Wire

Copperweld Copper-Clad Aluminum (CCA) Building Wire offers an alternative that meets both performance and budget demands. By metallurgically bonding a layer of oxygen-free copper over an aluminum core, Copperweld Building Wire provides the electrical conductivity of copper with the energy efficiency and cost stability of aluminum.

That bimetallic construction gives Copperweld Building Wire its defining characteristics: high conductivity at the surface where it matters most, lighter weight and lower cost thanks to the aluminum core, greater resistance to copper price volatility, and reduced incentives for theft. These physical properties and economic factors work together to deliver both immediate and long-term advantages in residential wiring systems.

A Proven Track Record

CCA building wire has been used safely in homes for more than 50 years. Copperweld has carried that legacy forward — backing it with extensive testing, quality controls, and validation to ensure it meets the expectations of today’s homeowners and builders. CCA meets the same UL safety standards and NEC code requirements as solid copper wire, and it’s been used across thousands of installations in residential construction. For homeowners, that means confidence in a material that has performed safely for decades — now backed by ongoing testing, quality control, and proven field performance.

Reliable, High-Performance Wiring

Energy-Saving Electrical Characteristics

Copperweld Building Wire's electrical characteristics help support the performance, reliability, and energy efficiency — as well as more sustainable building practices — that today’s homeowners expect from a modern wiring system:

• Reduced resistance minimizes energy loss over long runs
• Stable ampacity supports today's higher-demand branch circuits
• Reliable connections hold up when installed with standard, code-compliant methods

These characteristics don’t just benefit electricians — they also support long-term energy efficiency and day-to-day performance that homeowners can count on, potentially contributing to lower electric bills over time.

Future Ready

Built to Evolve with You

While Copperweld NM-B Building Wire is ideal for today’s residential branch circuits, its performance also supports the long view of homeownership. Electrical needs change — kitchens are remodeled, EV chargers are added, and bonus rooms become home offices.

As energy demands grow and new technologies emerge, Copperweld NM-B provides a strong, efficient foundation that scales with your home’s needs. Its consistent electrical performance and code-compliant reliability make it a smart choice not only for today’s homes, but also for tomorrow’s most advanced smart-home technologies.

Built for What’s Next

Confidence for the Long Term

Copperweld Building Wire isn’t just a short-term solution. It’s a long-term infrastructure investment designed to support the evolving demands of the next generation of smart homes. It delivers the conductivity contractors need, the efficiency homeowners want, and the cost control builders depend on.

And as the electrical backbone of the modern home, wiring needs to be both dependable and adaptable. Copperweld Building Wire offers homeowners the peace of mind that their investment today will support the smart, efficient, tech-rich living spaces of tomorrow — without the cost volatility and compromises of traditional copper.

Whether you're a builder planning a future-focused neighborhood, an electrical contractor sourcing reliable materials, or a homeowner investing in long-term performance, consider Copperweld Building Wire for your next project.