Different systems are used to protect premises from excessive sunlight. They are divided into internal (installed inside the room) and external (from the side of the street).
Curtains and internal shutters are often chosen as protection from the sun, but they protect only from direct rays. The heat from the sun still gets into the room and increases the temperature, so it’s only a partial solution to the problem of overheating in a hot period.
Therefore, from the point of view of energy efficiency, external sun screening solutions protect better from sunlight and sun heat.
Outdoor sun protection is presented by:
- ► Roller shutters
- ► Shutters
- ► Awnings
- ► Vertical awnings
- ► Sun louvres or external blinds
They represent a body of horizontal plates that move by means of manual or mechanical control. When closed, they also protect from street noise and vandalism.
Window shutters are one of the oldest sun protection systems. The traditional ones are made of wood and consist of two flaps attached to the facade from the outside, or sometimes inside the premises. For plastic windows, plastic shutters are available. Metal shutters are additionally used as safety reinforcement.
Awnings are exterior structures that can be unfolded and rolled back up both manually and with an electric device. They consist of a frame and fabric resistant to climatic conditions. Most often used for summer cafés.
The vertical ones are also made of fabric, but they are more compact in comparison with the awnings. Can be transparent (meshy) so that unfolded they protect from the sun, but do not block the view from the inside.
The sun louvres are the blinds that are installed outside the window. They are distinguished by their bent edges and greater rigidity compared to the usual horizontal blinds.