Ventilating in summer: More than just opening a window

It might seem simple to ventilate a room in summer—just open a window. But the time of day and environmental conditions can significantly affect how well your home stays cool. Here’s how to ventilate your home properly during hot weather to keep it fresh and comfortable.

1. Use proper curtains

Cover your windows with thick blinds or light-colored curtains made from coarse fabric. These materials are effective at reflecting sunlight and help keep indoor temperatures lower. Avoid dark-colored curtains, as they trap heat, and reduce the use of rugs and cushions, which are better suited for colder climates.

2. Ventilate at night

When outdoor temperatures drop—especially at night—take advantage by opening your windows. This lets cool air flow in, helping to refresh the whole house and create a more comfortable sleeping environment.

3. Create cross ventilation

Open windows on opposite sides of the house to generate cross ventilation. This allows air to move quickly through your home. For best results, keep interior doors open, including the bathroom door, so air can circulate freely.

4. Add more plants to your home

Plants provide natural air conditioning. They offer shade, absorb CO₂, and release oxygen, which boosts well-being. Place potted plants in the rooms you use most. You can even install green roofs to reduce heat coming in from above.

5. Modern ventilation systems

Today’s airtight windows are great for saving energy, but they can also restrict airflow. Here are some smart solutions:

Micro-ventilation

Using special window fittings installed on the sash or frame, you can create a small gap that lets in fresh air without fully opening the window. It’s ideal during storms or heavy rain, when opening windows can damage walls or floors.

Ventilation grilles

These small devices are installed in windows or walls. They can’t be closed, so they ensure a constant flow of fresh air. They’re perfect for people who are often away from home and want to avoid returning to a hot, stuffy space.

6. Avoid generating internal heat

Try to limit the use of ovens, incandescent bulbs, clothes dryers, and hair dryers during the day. These devices can raise indoor temperatures unnecessarily.

Conclusion

By following these simple tips, you can enjoy a cool and comfortable home throughout the summer—without always relying on air conditioning. Smart ventilation is key to thermal comfort and overall well-being.