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Creative Engineering Provides Flexible Control While Saving Energy

Glenn Claycomb, P.E., LEED® AP 
San Francisco Associate Principal


Glumac has provided full engineering services for the new 20,000 sf public library now bidding in Hercules, California.  The single story structure designed by Hammel, Green and Abrahamson (HGA) with Will Bruder Architects has a split-angled roof that rises to forty-three feet.

In the center of the building, an oval exterior garden open to the sky is surrounded by glass to light the main reading room and the children's library.  Children will enjoy a separate soaring "story cone" and outdoor activities in their own garden and amphitheater.  Young adults have a room for themselves near the small study rooms.  A public area with a small kitchen near the entrance will be available after normal hours for homework and community meetings.

Glumac designed the mechanical, electrical, plumbing, fire alarm and protection, audiovisual, security, and information technology systems.

Several mechanical schemes were considered, including underfloor air supply with a small central plant, but budget constraints called for creative thinking to find a low cost solution for flexible control and low energy use.  The result is rooftop package units with variable volume terminals and simple but effective controls. A dedicated system for the public area can be operated when the rest of the library is closed.

The unique architecture required a detailed design to coordinate all disciplines.

Hercules Public Library

Size: 20,000 sf
Glumac Innovation: Low cost solution for flexible control and low energy use

 

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