How Does Wi-Fi Go Through Walls? And Why Do Some Walls Destroy It?

Wi-Fi seems to go through walls as if they don't exist, but the reality is quite different: the signal loses energy, is absorbed, reflected and deflected by the materials it encounters along the way. The propagation of Wi-Fi waves through obstacles is not a simple or linear process, involving multiple physical interactions between the electromagnetic signal and the surrounding materials. What seems like an unimpeded passage is actually a phenomenon of constant signal attenuation and modification. The materials that make up walls, ceilings and furniture interact in different ways with Wi-Fi waves, causing varied effects that affect the quality and strength of the received signal. Each material has its own characteristics that determine how much signal it can absorb, reflect or let through, resulting in significant variations in Wi-Fi coverage inside buildings.