Myth Or Truth: Bathroom Can Weaken the Wi-fi Signal?

If you have a notebook or a smart phone , you almost certainly have tried to use the internet from inside your bathroom.And you should also have noticed that the wireless signal inside is not as strong as the rest of the house.But what are the reasons for this in the bathrooms?

One of the main reasons for this are the walls, which hinder the signal in any environment of the house.Even so, it should be noted that in bathrooms this sign is further weakened.Really?This is what we will discover by analyzing some of the factors that may influence the transmission of data.

What is the role of tiles?

Many bathrooms are built with porcelain tiles.Some say they can make the internet signal weak.Apple says in its Wi-Fi enhancement manual that tiles are real obstacles that can disrupt transmissions.

According to some reports by experts in networks, the tile causes a reverberation of the wireless signal.This represents a drop in power and, consequently, a failure in communication between devices.

There are no specific studies for this hypothesis, but one factor must be taken into account.For the placement of the tiles it is necessary to use cement, which is admittedly a wireless signal weakener.Concrete walls can be an even more powerful blocker.

Can mirrors reflect the signal?

One of the most frequently asked questions about wireless Internet is about mirrors.Many think that they can reflect the signal and prevent it from reaching the devices that need the data.In fact, to confirm this one needs to differentiate two types of mirrors that can be found in the bathrooms.

The glass does not cause any interference, but the metal used for reflections can be a complicated obstacle.Older mirrors, which used lead, silver and other heavy materials, are almost insurmountable.Already the most modern ones with aluminum cause less losses, but do not allow 100% of passage.

What really happens is not reflection (as with light in mirrors), but rather an absorption of the signal – just as with all materials.

Pipes and fittings

Currently, the vast majority of pipes and hydraulic connections are made of PVC and other plastic materials, but there was a time when they were made of metal.If your home has such an installation, your bathroom will possibly be isolated from any Wi-Fi signal. This is because the metal absorbs the waves.

It can be said that this type of construction is one of the biggest responsible for the disuse of the bathrooms as a central media and internet connection.As has been said before, the thickness of the walls is also an obstacle that needs to be overcome.It is worth remembering that in the internal part of them they can pass electrical wires, that also cause interference.

After all, does the bathroom weaken Wi-Fi?

The answer is “yes,” but it is not limited to that.If the wireless router and the device that tries to access it are separated by the bathroom, the internet signal will arrive weaker to this electronic.That is, it is not just inside the bathroom that the signal gets weakened, but anywhere that has the bathroom as path.


As you can see, it’s not just your bathroom that turns the wireless Internet into a torment.The joining of tiles, cement, pipes, electrical installations, mirrors and walls really makes these environments a lousy place for the Wi-Fi signal.