Electrical boxes are simply meant to protect ... I prefer to spend the extra 20¢ per box on heavy-duty thermoset plastic or ...

Building a great looking box ... The fiberglass substrate makes for a strong and lightweight material. Also, [Ken] is a ham radio operator and the copper coating acts as an electrical shield ...

Tuck the snipped-out plug of insulation behind the box. Don’t wrap fiberglass batts around electrical boxes or stuff full batts behind them. That creates gaps and air convection routes around ...