If you are looking to buy an older home, or live in one, you might not know about a problem lurking inside your walls. As homes are built, bought, sold, and resold there is no requirement in most jurisdictions that the home’s viral systems be brought up to the current code. Those systems are grandfathered in, and even if your home looks great, there can be hazards. In Florida, most insurance companies want a four point inspection before they will insure an older home, and even if you live in your current home, it might be a good idea to have one, especially if your wiring might be out of date or obsolete. Here are some of the things to look out for and correct if you find them
- Knob and Tube Wiring: This was a wiring method in use from the 1880s to the 1930s. Wires are run through porcelain insulators, knobs and tunnels, leaving the wire in open air to let the heat dissipate. That there are still houses wired this way speaks to its durability, but the electrical load of a modern home, wear and tear, and other factors mean it’s time to update.
- Aluminum Wiring: Some homes in the 50s were built or renovated with aluminum wiring, but the practice really took off in the mid-60s when global copper prices went into orbit, and continued into the mid-70s. While it is used in avionics and power grid applications, many residential installations were faulty. For instance, pairing copper wire with aluminum wire can cause corrosion problems which cause the connection to become unstable.
- Two Wire Sheathed Cable: This is an early version of modern ROMEX cabling that began with cloth sheathing, evolved to […]