Ventilation: what you need to know

There are a few important performance considerations you need to understand in order to get your head around how home ventilation should work. We don't often think about it, but the need for ventilation can have a very big impact on how your house is designed.

Indoor air quality

The most important reason to ensure that your home is properly ventilated is to ensure that the quality of the air is not making you sick, and to avoid sick building syndrome.

Position and aperture size of vents

Where your vents and windows are located and how big they are both play a vital role in how much air is allowed to move in and out of your home.

House design and orientation

The best things you can do to make sure your house is effectively ventilated are to think carefully about air flow at the design stage, and to face your house in the right direction.

Heat, humidity and ventilation

Effective ventilation can make a big difference to houses in hot and humid environments. Find out how best to use ventilation to deal with these conditions.

Exhaust fans: size, speed and throughput

The size and speed of an exhaust fan can have an impact on its performance, but to choose a fan you also need to consider what it's going to be used for.