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November 2022.
Building Materials and Their Effect on Wi-Fi Signals
Material Wi-Fi Attenuation
Wood, Drywall, Particle Board, Tile Low
Glass Low
Water Medium
Bricks, Cinder Block Medium
Plaster, Stucco High
Concrete High
Tinted or Low-E Glass (metalized) Very High
Metal Very High
Note: The lower the attenuation, the better the performance.