VENTILATION SYSTEMS

Adding one of these systems to your self-build or renovation could solve excess humidity and improve the overall air quality inside your home

- By DAVID HILTON

Home ventilation is a broad term that encompasses a whole host of ventilation types that homes – new and old – require. It's something that you need to consider at the beginning of a project, whether you're starting from scratch or looking to renovate a property.

You will need to know the different ventilation options available as the ventilation in any home won't be relying on just one type. If you are going for a new build then you will definitely need to check Building Regulations Part F for more insight as to exactly what is required for your project.

Whatever is needed, it will have to swap out old stale air for fresh new air. This will ensure good air quality and take the fight to condensation and the dreaded D-word – damp.

IMPORTANCE OF HAVING ADEQUATE VENTILATION

Adequate ventilation is essential in maintaining a healthy environment, as it:

● Prevents the buildup of excess levels of humidity (which can lead to condensation and mould and can consequently result in health issues). ● Provides air for your fuel-burning appliances, such as woodburning stoves.

● Removes cooking smells.

● In some instances, it can help remove allergens and other irritants.

UNDERSTANDING UNCONTROLLED VENTILATION

Uncontrolled ventilation is, in essence, ventilation that's always active – you can't turn it on and off. For many existing homes, airbricks and trickle vents in windows have been the solution of choice. They are cheap to install, comply with Building Regulations Part F and are understood by most builders. They can keep the home ventilated but there are a number of caveats:

● If there is no wind, then the home may not be ventilated and conversely, if the wind is blowing hard then the home could be over ventilated.

● Airbricks can become blocked by dirt, debris or vegetation outside the room; or conversely, curtains or furniture inside the house.