The two twelve-by-sixteen-foot bedrooms, directly above a comparable pair on the first floor, feature a glass transom that follows the pitch of the roof. “The stair and railings were very simple,” Depardon observes. “We added a bit of design, with panels made from frosted Japanese rice paper between layers of glass.” The architects created skylights and installed rooftop solar panels that heat the water and first-floor radiant system – changes Depardon considers faithful to Koch’s philosophy of rationality and cost-effectiveness. “The idea was, this is a great little piece of architecture – let’s try to be respectful of it.”  Show-Stealing Skylights in Modern Homes by Zachary Edelson from Techbuilt House