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DELTONA REGIONAL LIBRARY EXPANSION/RENOVATION Deltona, Florida The expanded Deltona Regional Library is twice the size of the original library, with an enhanced computer area, designated spaces for children and teens, and a di- vidable conference suite. Included in the project were the 4,000-sf Environmental Learning Center (ELC) and 500-seat out- door amphitheater. The ELC focuses on the Lyonia Preserve that surrounds it and features a separate entrance, an interac- tive exhibit space, two science classrooms and a photo gallery. Energy efficiency and water conservation were key goals for the building, which was awarded USGBC LEED® Silver certification. The structural system comprises exterior concrete masonry walls supported by spread foundations. Continuous ribbon- style tinted windows were incorporated into the exterior walls to maximize day- lighting and views. The primary roof sys- tem consists of steel joists supported by structural steel columns and beams and exterior load-bearing walls. Several high roof areas in key portions of the building allow space for raised and vaulted ceilings. The amphitheater, strategically located to take advantage of the site’s bowl shape, features numerous concrete masonry retaining walls that form tiered seating and walkways. A balcony overlooks the amphitheater and performance area. Sev- eral concrete support columns cantilever up above the balcony and provide the primary support for the triangular-shaped fabric sail shades and the audio-visual equipment. Architect Rood and Zwick, Inc. Cocoa, Florida Constructor PPI Construction Management Orlando, Florida Owner Volusia County, Florida Major Components Enhanced Computer Area Enlarged Children’s Area Teen Area Interactive Exhibit Area Photo Gallery Dual Meeting Suite 4,000-sf Environmental Learning Center 500-Seat Amphitheater Concession and Restroom Building Project Size 25,000 sf renovation 25,000 sf addition Construction Cost $6 Million Completion Date September 2009 TLC Services Structural Mechanical Electrical Plumbing Fire Protection LEED Administration Fundamental Commissioning Energy Modeling The HVAC systems serving the new construction included two new high- efficiency 50-ton, CFC-free condensing units paired with indoor variable volume air handling units. The air handlers are equipped with variable frequency drives that reduce power consumption during non-peak times. Carbon dioxide controls also save energy by reducing C02 levels when occupancy levels aren’t high enough to require outside air. Each HVAC system is controlled by the Building Management System for even more energy savings. Water reducing strategies include low-flow sinks and lavatories and sensor-operated flush controls. The design features full cut-off site light- ing fixtures. Site lighting power density was designed to be 59% below the LEED allowable limit, and façade lighting power density was designed to be 62% below the LEED allowable limit. This will contribute to significant energy savings, even beyond a traditional LEED-certified building. Several daylight harvesting strategies were used including dimming ballasts and photo sensors. Lighting in all of the new spaces uses a combination of occupancy sensors and bi-level switching to reduce energy consumption. Two architectural dimming systems were incorporated into the design, one for the displays in the environmental center and the other for the amphitheater’s aisle and theatrical lighting fixtures. Photo Courtesy of Rood and Zwick, Inc. GREEN FACTS LEED Silver for New Construction Certification Awarded in May 2010 CERTIFIED 35 Points* 8 4 5 5 10 3 *Out of a possible 69 points Sustainable Site Water Efficiency Energy & Atmosphere (EA c1 - Achieved 4 Points/23.1%) Materials & Resources Indoor Environmental Quality Innovation & Design 60 |