What issue is commonly associated with aluminum wiring?

The issue commonly associated with aluminum wiring is the increased fire risk. Aluminum wiring, especially in older installations, has been known to pose a higher risk of overheating and arcing, which can lead to electrical fires. This is primarily due to the metal's lower conductivity compared to copper, which can cause connections to heat up, particularly at junctions or splices if they are not properly done. Over time, these faulty connections can deteriorate, further increasing the risk of fire.

Other factors such as the material's expansion and contraction with temperature changes can contribute to loosening of connections, exacerbating the problem. Thus, understanding these risks is crucial when dealing with aluminum wiring and ensuring safety measures are in place.