The answer to 'aluminum wiring vs copper wiring' is that copper wiring is generally the better choice for most residential electrical systems. Copper is more durable, has better conductivity, and is less prone to issues like corrosion and overheating compared to aluminum wiring. Copper also has a longer lifespan and is the industry standard for new home construction and renovations.
That said, aluminum wiring was commonly used in homes built in the 1960s and 1970s as a cost-saving measure. While aluminum can be safe if properly installed and maintained, it does present some risks like increased fire hazard and connection issues over time. Homeowners with existing aluminum wiring should have it regularly inspected by a licensed electrician and may need to consider upgrading to copper for safety.