Large clerestories on the bay ends over the private offices face northeast and southwest, adding significantly to the overall illumination levels. Daylight from these clerestories is reflected up from the office ceilings to the white curved ceiling of the bay. The high performance spectrally selective glazing has a 70% visible transmission for daylight and a 0.42 Shading coefficient for solar gain. In the private offices on the perimeter, the windows are operable and have individually controlled mechanized shades. The overall office lighting by Peerless is indirect and controlled with photosensors to respond to exterior illumination levels. Under-floor air supply allows individual controls and enable night cooling of the building mass to reduce air conditioning energies. The open office system is custom designed with very light wood finishes and upper panels of translucent glass on all privacy screens to allow better diffusion of daylight throughout the office bay. All interior wood and wood veneer in the building was harvested from certified, sustainably managed forests. Materials used throughout the offices are low-toxicity . The undulating roof of the complex is sod, planted with native grasses and wildflowers. The roof absorbs storm water runoff and provides thermal isolation for the interior which is difficult to match with standard insulating products.