(D09) Implementing the Natural Ventilation Systems Protocol for Equatorial Climates in Bogotá, Colombia

EAN Legacy is the first building to implement the Verification Protocol for Engineered Natural Ventilation Systems in Equatorial Climates created under the auspices of the Colombia Green Building Council and accepted by the USGBC as an Alternative Compliance Path (ACP) for achieving LEED energy credits. The Protocol was a design driver, resulting in a mixed-mode system incorporating exclusive natural ventilation in some areas combined with tempered, filtered air in others, and facilitated by solar-activated chimneys.
The session will focus on the total integrated design of this university building, demonstrating how daylighting and solar shading complemented the air delivery system.
Additionally there will be a focus on the Circular Economy approach and the University’s efforts to engage with the community. Programs were created and run by students to provide demolished building materials to nearby underserved localities. As well, a robust construction management system was developed to recycle wood pilings from the demolished building and to re-use aggregate for new concrete. In keeping with the mission of the University to train entrepreneurs, design for the Circular Economy figured prominently among the project goals.
 Care was taken in the design process to assess building products for human and ecological health, giving preference to local manufacturers who wished to improve the environmental sustainability of their products. Students were engaged in product vetting through an Institute established by the University to facilitate the process. The presentation will highlight the experience of one supplier who achieved Cradle to Cradle® certification for their product, which was then incorporated in another product up the supply chain, helping to kick-start an ecosystem of local environmentally preferable products in Bogota. 
Finally, the presentation will show how the creative financial structure of the project took advantage of new government tax credits established to incentivize green building in Colombia.