by the adjacent three-story building to the east and to increase the
civic presence of the building on the
street, another key goal.
The roof design became the main
focus of the integrated process, as
competing needs for solar panels,
natural ventilation, and daylight
were reconciled. The design evolved
into a tight composition of alternating
south-facing solar panels and north-facing clerestories, with the end
result of both ZNE performance and
a bright, airy interior.
Berkeley’s temperate climate is
enhanced by moderate ocean breezes
flowing in from the west. Early design
concepts sought to use these breezes
for natural ventilation and cooling.
However, the building is located on a
major street with heavy truck traffic
idling just beyond the lot line, which
produced conflicting requirements
CASE STUDY WEST BRANCH LIBRARY OF THE BERKELEY PUBLIC LIBRARY
Triple glazing along University Avenue
was specified to maximize transparency
between interior and exterior, bringing
in ample daylight while protecting the
interior from street noise and heat gain.
SOLAR ACCESS ANALYSIS
The dense urban context required a detailed solar access analysis to confirm the
potential for solar energy generation on site.
Roof Height: 12'-0"
Roof Height: 24'-0" (Final)