Bathroom Design Advice: How To Ventilate Your Bathroom

Ventilating your bathroom is crucial for maintaining a healthy and comfortable home environment, especially during the warmer summer months when humidity levels can rise. Proper ventilation not only prevents the growth of mould and mildew but also keeps your bathroom fresh and odour-free. Here, we&#;ll take a look at the various elements of bathroom design which can help with ventilation, as well as some practical maintenance tips to ensure your bathroom remains well-ventilated all summer long. 

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Ventilation in bathroom design 

Extractor fans 

Extractor fans are perhaps the most common area of a bathroom to offer ventilation. They help to expel moist air, reducing humidity levels and preventing mould growth. Here are some key considerations: 

• Size and capacity: Ensure the extractor fan is appropriately sized for your bathroom; for larger bathrooms, or those with additional features like a jetted tub, you may need a more powerful fan 

• Placement: Install the extractor fan near the shower or bath, where most moisture is generated. If possible, position it on the ceiling to take advantage of rising warm air 

• Operation: Use the extractor fan during and after showers or baths to effectively remove moisture from the room. Most extractor fans are triggered when the light switch is pulled, however running the fan for at least 20 minutes post-shower/bath can significantly reduce humidity levels 

Check for leaks 

Ensure that all windows, skylights and duct connections are properly sealed to prevent leaks, which can introduce unwanted moisture into your bathroom. 

Use a dehumidifier 

In areas with high humidity levels, consider using a portable dehumidifier in your bathroom. This can help reduce overall humidity and support your ventilation system. 

Keep doors open 

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Whenever possible, keep the bathroom door open when not in use. This promotes airflow and helps disperse any lingering moisture. 

The day starts with a nice, warm shower, then the humidity has to get out of the bathroom. After a long, hot shower or a full bath, room humidity can quickly reach 80 percent. This can be seen in the form of misted-up mirrors and wet, damp surfaces. Opening window to ventilate the space means valuable time has to pass before the mirror can be used again. Not only that, the warm, comfortable feeling of the room evaporates and gets chilly quickly. 

This is where ventilation for the bathroom can help. It ensures good air exchange, which is enormously important, transporting unpleasant odors, moisture, as well as harmful particles and fine dust out of the room quickly and easily. Moreover, the only want to prevent mold growth is through regular air exchange. Good systems transport the exhaust air outside and bring in fresh air. This filters pollutants, fine dust, and pollen out of the air, particularly helpful for allergy sufferers and asthmatics.

If you&#;re doing without automatic ventilation, try to open the window several times a day for several minutes to ensure good air. This routine will quickly get uncomfortable, especially during the winter. But even then, the risk of mold growth doesn&#;t go down. Wet towels and water residue release moisture into the room, even long after showering. In addition, the room cools down quickly, meaning lots of energy gets unnecessarily consumed to heat it back up.

There is a wide range of technical systems. The right one for your own four walls depends on the individual situation. In general, there are two types of ventilation systems.

Air out: Exhaust air systems

This principle is only one-way: air is transported outside, but not inside. Thus, because there is no supply of fresh air supply, the window will still need to be opened regularly. This kind of solution should only be used if a more efficient fresh air supply cannot be realized.

Air in: Supply air and exhaust air systems

Bad air out, fresh air in: The combination of supply air and exhaust air systems is the optimal solution. In new buildings, they&#;re connected directly to the central ventilation system; when retrofitted, they function as decentralized ventilation. The advantages are obvious: You no longer have to manually provide fresh air. In addition, good devices can automatically detect excessive humidity. 

The automatic method is especially recommended if your bathroom is outfitted with delicate materials. Your exclusive paper wallpaper or even the wooden floor will thank you for integrating a modern system to remove moisture! 

Good to know: Ventilation systems are always mandatory in windowless bathrooms.

When looking to buy, pay attention to the following aspects:

• Size of the fan: The size of the fan depends on the size of the room, and the required number of air changes per hour. For example, an eight to 12-square meter bathroom requires five to nine air changes per hour, and thus a fan with a flow rate of 90 - 150 m3/h.
• Integrated humidity sensor: This is an important technical detail, as the sensor automatically activates the system when room humidity exceeds a certain level. There should be a manual switch for venting.
• Heat recovery: The heat from the exhaust air is stored and released into the supply air, which means savings on energy costs.
• Beautiful cladding: Have the system installed in a visually appealing way and choose materials that will fit the room&#;s look as harmoniously as possible.
• VDE-GS seal: When selecting your device, make sure that it bears the VDE seal, which identifies electrical devices that comply with European standards.

Focus on safety and be sure to have your system installed by professionals.

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