How sun screens keep your home as much as 10 °C cooler

A sun screen is an outdoor device that is installed on the outside of your window. It comprises a taut fabric which filters sunlight while maintaining the view outside. It prevents solar heat from coming indoors, so the interior remains nice and cool but you don’t have to sit in a dark, closed-off space. Screens can be built into the building’s façade, but you can also secure them directly to the window. This provides a range of options for renovations.

Light reflection

Sun screens are highly reflective and reflect a high degree of the incoming sunlight. This reduces the direct exposure to the sun and lessens the heat transfer.

Light absorption and transmission

Harol screens also absorb some of the sunlight that gets through. The heat that comes with it can then escape outdoors thanks to the fabric’s open structure. The window thus absorbs less heat, allowing indoors to stay cooler. 

Air circulation

Outdoor sun screens ensure that air can circulate between the window and the screen. This air circulation helps dispose of heat and contributes towards keeping the window’s surface cooler. This circulation can also help to reduce condensation on the window.

Shade and the reduction of light penetration

The screen also functions as a type of shade screen for the window, blocking out direct sunlight. This reduces the degree of heat that penetrates through the glass. The combination of light reflection, light absorption and shade creation helps to maintain a cool climate within the home. The exact impact can vary depending on factors such as the intensity of sunlight, the orientation of the window and the properties of the screen material used.