If you plan to design your home to be an air-tight structure, chances are you will require sufficient ventilation to prevent it from developing various issues. Including condensation, damp, mould and dust. It's not good for the home and isn't fit for its occupants. Many people’s health issues have been due to poor ventilation in the home, including asthma, bronchitis and other respiratory diseases. So, it's necessary to design the home with sufficient ventilation. 

Want To Know How To Do This? 

Background ventilation is the easiest and most cost-effective way to keep your home ventilated. Installing trickle vents in your windows will help keep a constant flow of air through the home, remove stale air, reduce condensation, and allow all the above without the need to open a window. 

What Do You Need About Mechanical Ventilation? 

There are many systems for this type of ventilation... 

System 1 - This method includes intermittent extractor fans in all wet rooms and kitchens, which extract steam when the room is used for things including bathing, showering and cooking. Again, this reduces the build-up of unwanted moisture and smells. 

System 3 - An alternative and more efficient system of this type is continuous mechanical ventilation. This takes the above method, but the difference is the fans will run constantly rather than intermittently. The advantage here is that it not only extracts stale air. 

System 4 - Again, this incorporates the extraction method used in system 3 continuously, but also supplies other rooms in the home, including dining, bedrooms, studies, etc., with fresh air. This system can also include a heat recovery system, which will recycle the warm air from the bathrooms and kitchens and help heat the home. This will then help your home's energy efficiency, which is the whole point of an airtightness home.