Dynamic Solar And Fire Protection At Alto Pont-Rouge
The Alto Pont-Rouge office building is the fourth and final part of Geneva’s Esplanade de Pont-Rouge business district. Along with the building’s location overlooking the Lancy-Pont-Rouge station, necessitated special requirements for the facade glazing. The solution was devised by Saint-Gobain glass specialists, who opted for a unique combination of dynamic SageGlass electrochromic glass and Vetrotech’s CONTRAFLAM fire protection glass.
Swiss architectural firm brodbeck-roulet designed a second skin around the facade with a grid structure that is typical of the area. With its large-format fixed glazing, this creative double facade allows a high volume of natural light to flood the interior. To mitigate the negative effects of direct sunlight, such as glare or excess heat, the Alto complex is equipped with 7,500m² of SageGlass Harmony smart windows. This provides the ideal balance of natural light and anti-glare protection thanks to its automatic, gradual tinting. With its dynamic g value of up to 0.03, SageGlass also blocks up to 97% of solar heat gain.
The safety glazing solution was a collaboration between the SageGlass and Vetrotech teams and development lasted over two years from the initial needs assessment to project completion including an extensive period of internal and external testing. The triple-insulated SageGlass CONTRAFLAM has been tested by ift Rosenheim and certified by TÜV Rheinland Nederland BV.
