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Which materials affect the Wi-Fi signal strength the most?


The Wi-Fi signal has a limited range. Its waves travel in the shape of a donut and they cover a certain distance before starting to lose intensity to a worrying level, but it is also affected by obstacles in their path.

It is not the same to place a router in the center of a room and that the Wi-Fi signal extends to adjacent rooms by crossing a thin brick wall, than wanting to connect to that same Wi-Fi network from an equally close room, but surrounded by a wall of plasterboard.

In the first example, the strength and quality of the Wi-Fi connection will be very good, but in the second case the opposite will happen. This has an explanation, and it is that not all materials affect the Wi-Fi signal equally. With this in mind, it is easy to understand why in some rooms you may have a very good reception, and in others not, even though they are almost the same distance.

Which materials affect the strength of the Wi-Fi signal the most?

We can differentiate a total of five materials that are, today, the most used in the construction of homes, offices and shops.

Then we leave them to you ordered from least to greatest impact on the strength of the Wi-Fi signal. If you have any questions you can leave it in the comments, and we will help you solve it.

1.-Wooden walls

This material has a minimal impact on the signal of our Wi-Fi connection. Several studies indicate that barely reduces range and signal strength by 5%, which means that 95% of it passes.

2.-Glass walls

The impact of this material is greater than that of the previous one, since blocks Wi-Fi signal by 25%, approximately, a value that, nevertheless, is quite acceptable, especially if we compare it with the last two materials that we are going to see.

3.-Brick walls

Without a doubt the most common material in Europe. Has a slightly higher impact than glass, andto that they block about 30% of the signal, which means that they allow 70% of the Wi-Fi signal to pass through.

4.-Concrete walls

Concrete walls can reduce Wi-Fi signal strength by up to 40%, which means that just one of these walls, attached at a relatively high distance, could easily create a dead zone.

5.-plasterboard walls

We are facing the material that most blocks the signal. Can block up to 50% of the signal, and as in the previous case, only one of these walls and a distance of a few meters can be enough to leave us a dead zone.

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