District attorney’s office glows with channel glass

“This was our first project with the [channel glass] system. We did a lot of research and knew what we were up against. … One challenge was the tight sight. We had to use high-reach equipment the entire time. There was also a lot of dirt in the air, and the glass was a very translucent pattern, so we had to be very careful with finger prints—a lot of washing.”
—Dave Ranker, owner, Ranker AMG, Sacramento, Calif.

The basics: The four-story Contra Costa County District Attorney’s headquarters in Martinez, Calif., features an impressive channel glass façade on the north and west elevations that encloses the building’s library. The wall includes four levels of channels and required the glazing contractor to complete the entire installation off of lifts.

The players: Architect, Kava Massih Architects, San Francisco; general contractor, Swinerton Inc., San Francisco; contract glazier, Ranker AMG, Sacramento, Calif.; channel glass supplier, Bendheim Wall Systems, Passaic, N.J.

The glass: 3,100 square feet of tempered and annealed P26/60/7 Clarissimo channel glass certified by the Safety Glazing Certification Council, Sackets Harbor, N.Y. The channel glass features a low-emissivity coating and is used in a double-glazed installation. The planks are about 10 feet long in Bendheim’s BWS SF60 frame with clear anodized finish.