Rewiring Your Home From Knob & Tube

Homes built prior to 1950 often feature old-style electrical wiring that is about as technologically advanced as the football helmets from those days. Knob-and-tube wiring (so called for the ceramic knobs and tubes that protect the wires at turns and pass-throughs) are now considered dangerous. It worked well when it was new, but degradation and the availability of modern alternatives make knob-and-tube wiring obsolete.