11 Major Building Materials That Kill Your Cell Phone Reception
Unfortunately, they 39re also good at reflecting cellular signal back. 1. Metal: What Metal Blocks Cell Signal 32 to 50 dB People often ask: do metal roofs block cell phone reception Sadly, yes, a great deal. Aluminum, aluminum foil, lead, brass, copper, steel, iron, etc. Metal is the 1 cellular blocking material across all buildings in ...