When is Aluminum Wiring NOT Aluminum Wiring

Inspecting older homes 1960's/70's vintage can sometimes expose problems with the wiring that maybe isn't the problem that you perceive it to be.
Wiring that looks like Aluminum wiring may not in fact be Aluminum. Care to try and see the ends of the exposed wires where they have been cut should be taken. This will confirm or contradict the fact that the wiring may be Aluminum. If signs of Copper colour at the cut surface will indicate that the wiring is "Tinned". The surface of the wire was covered with Tin during manufacturing, this was done for 2 purposes. 1 to reduce the interaction between the rubberised wire shielding and the copper wires as corrosion was a concern. 2 to give a better joint where a soldered joint was employed as this was a popular method of creating a secure effective connection.
If fact tinned wires were manufactured as early as 1915 so predating the popularity of Aluminum that was caused in the cost of copper spiking in the 60/70's so be careful not to flag Aluminum wiring and causing the stigma that has been felt by the Aluminum wiring being associated to your home.
The problem that may be existing with this type of wiring specifically is that during its lifetime the rubber shielding may have become brittle and become detached from the wire which then may become exposed. This is why a plasticised more durable shield was developed as is installed on modern wiring.
Aluminum wiring can very effectively and safely used in homes assuming the compatible fixtures, anti corrosion compound and components are used along with it or if "Pigtailing"is employed - Contact us for an inspection and / or advice on this issue.