The Franklin Library renovation and expansion project was driven by the creative minds of highly skilled engineers who collaborated to pursue cutting-edge mechanical and electrical systems designed around two main criteria: energy efficiency and ease of maintenance.
PLATINUM LEED CERTIFICATION
LEED certification is the recognized standard for measuring building sustainability, and achieving LEED certification for a project, demonstrates that your building project is in fact “green.” The LEED green building rating system, developed and administered by the U.S. Green Building Council, is designed to promote design and construction practices that increase profitability while reducing the negative environmental impacts of buildings and improving occupant health and well-being. Platinum LEED Certification is the highest certification available on the rating system and was awarded to Franklin Library. For more information on LEED, please visit http://www.usgbc.org.
Two forms of solar energy are produced on site: solar thermal panels and photovoltaic panels. During sunny fall and spring conditions, the solar thermal panels and photovoltaic array can provide 80% of the building’s energy needs.
SOLAR THERMAL PANELS
There are 54 Solar Thermal Panels located on the roof, producing 2,000 therms of energy per year. These provide hot water for domestic uses and for the boiler system.
There are 138 Photovoltaic Panels, which will provide nearly 50 kW of peak power while saving the library 78,624 kWh of electricity per year.
Efficient lighting is used throughout the project with all of the site lighting and the majority of the interior lighting consisting of LED lamps, most being controlled via day light sensors. This in turn is able to provide a 60 percent savings in lighting consumption compared to a code compliant building and also limits the need to replace bulbs and lighting ballasts.
EASE OF MAINTENANCE
The mechanical equipment is centrally located in one location, eliminating the need for maintenance personnel to perform routine tasks in the patron areas. Ceiling spaces are also clear of valves, strainers, and filters to avoid leaks and the need for ladder access.
Franklin Public Library
Des Moines, IA
Benjamin Design Collaborative
28,000 Sq Ft