Many older homes were built without fixed ventilation grilles above the windows. This doesn't mean you can't bring fresh air into the house, but you do need to be more conscious about it than in a house with grilles that provide a continuous flow of air automatically.
Why grilles are so convenient
A grille provides a small, constant opening that ensures ventilation day and night without you having to do anything. Without grilles, you have to provide this function yourself using other means.
Alternatives without fixed grilles
Regular and conscious ventilation
Without grilles, it is extra important to ventilate briefly several times a day: in the bedroom in the morning, in the kitchen after cooking, and in the bathroom after showering. Because continuous basic ventilation is missing, moisture and CO2 build up more quickly, so you need to ventilate more often and more consciously than in a house with grilles.
A window slightly ajar
Some windows have a micro-ventilation setting, where the window is open by just a few millimeters. This provides a small, continuous airflow that is somewhat similar to what a grille does, although it is usually less controlled and can cause drafts in strong winds.
Mechanical extraction in the bathroom and kitchen
An extractor fan in the bathroom and an extractor hood in the kitchen that vents to the outside help to quickly remove moisture and cooking smells when they are needed most. This does not replace continuous ventilation for the rest of the home, but it does remove the largest peak load.
Installing grilles
The most structural solution is to have ventilation grilles installed above windows or in the facade after all. This is possible in many types of homes after they have been built and provides the continuous basic ventilation that you would otherwise have to compensate for yourself by ventilating.
Signs that the ventilation is insufficient
Look out for steamed-up windows, a musty smell, or a stuffy feeling when entering a room. These are indications that not enough fresh air is coming in and that you need to ventilate more often or consider structural measures.
Frequently asked questions
Is a window slightly ajar as good as a grille?
Not entirely: a slightly open window is less controlled and can cause a lot of drafts or heat loss in windy conditions. A fixed grille is usually a more stable solution.
Do I always have to leave a window open if I don't have grilles?
You don't have to leave it open all day, but regular and conscious ventilation is then more important than in a home with grilles.
In addition to ventilating well, do you also want to further improve the humidity or air quality in a specific room? Then take a look at the products from Dynter for a more pleasant indoor climate.