Bandalux sun protection systems filter the light and reduce the disturbances caused by the sun’s rays, such as reflections and glares, and therefore promote visual comfort. What’s more, they comply with the international standards that stress the importance of correct lighting, as is the case of Spanish Royal Decree 486/1997 and UNE-EN 12464- 1:2003.
Each type of room requires a different degree of lighting, and Bandalux shades and drapes adapt perfectly to those needs. For example, 150 lux in a reception area, 300 lux in a conference room, 500 lux in an office and 1000 lux in a design studio.
The transmission of light is measured by means of the coefficient VT (visual transmission), which represents the percentage of the transmission of the light over the total influence of the luminous flux.
Bandalux uses Vitrage Decision software to run thermal studies
To evaluate a sun protection system from the perspective of energy, its performance needs to be measured according to the Gtot index, which represents the relation between the solar flux transmitted through a glass surface and its shade, and the total flux that impacts its surface. In other words, it indicates the proportion of heat that affects a room in relation to the solar energy, whether indoors (Gtote) or outdoors (Gtoti). Its values oscillate between 0 and 1, and the weaker the coefficient is, the higher the thermal comfort its.
How can we offer optimal thermal comfort?
Shades are decisive in obtaining the optimal temperature for daily life and work, as well as for thermal comfort. For the proper sunlight management of a building, Bandalux uses technical fabrics including its Polyscreen, Blackout and Pearly finish fabrics, which protect, filter and regulate the heat of a room, to ensure healthy thermal conditions.
Furthermore, colors also play an essential role in thermal comfort. Dark colors absorb the heat, whereas light colors reflect it.
Did you know that the ideal temperature for optimal work performance is 22ºC?
According to a study by the University of Technology of Helsinki and the Lawrence Berkeley National Laboratory, the recommended temperature for office activities is between 21 and 22 ºC. This contributes to the improvement of worker well-being and productivity.
The best way to limit the entrance of heat and maintain the temperature indoors is to prevent the sun from coming directly through the windows. Bandalux shades and drapes are one of the best solutions to limit the use of air conditioning; for example, an outdoor shade can reduce the temperature of a room by between 4 and 7ºC.
In winter, on the other hand, it is important to take advantage of the solar heat that comes inside through glass surfaces. Bandalux motorized systems can help, as they automatically open or close, thanks to their heat sensors, to provide a pleasant indoor temperature to the occupants of a building.