Last glass panel is put in place

December 2016

Spheres with glass panels and some without glass panels as construction comes to completion

The Spheres’ façade contains 2,643 panes of glass. The last pane was put into place in December 2016. Our plants need more daylight than the Seattle weather usually provides so the type of glass selected for the façade was important. The glass chosen is ultra-clear and energy-efficient, with a film interlayer to keep out infrared wavelengths that produce unwanted heat. To test it out, the Amazon Horticulture built a small greenhouse in Woodinville, WA using the glass planned for The Spheres. This mockup greenhouse allowed the team to test light levels, temperature, and humidity in a realistic environment.