Environmental Design Consultancy
Guérnica Office Building (2012)
Total area: 12,000 m²
Architects: Más Fernández Arquitectos
Studies developed as part of Estudio Diav.
Located in the centre of Santiago, in an area of very high density, this project rises in the shape of a "C", with an interior courtyard. The courtyard is a semi-public intermediate space, which will bring daylight into the interior spaces.
The most complex issues to manage were the use of natural daylight, the optimisation of heat gains without creating overheating, and the reduction of cooling and heating loads due to high internal gains. A particular factor was a high level of air tightness, both between inside and outside, but between interior spaces as well, due to security issues.
We specified a building envelope -mostly glazing of different qualities, depending on orientation, security requirements, activity, etc- and designed passive solar management systems
We simulated and tested these strategies in terms of energy, which later allowed to dimension different HVAC systems, and defined strategies for simultaneous heating and cooling requirements. We evaluated and compared different HVAC systems proposals in economical terms, to determine investments requirements and returns. We also provided daylighting studies which aided in defining interior layouts, and partitions materials. In more general terms, we assisted as coordinators between energy efficiency and other building services related projects.
We managed to prove energy use reduction of 25% over initial HVAC energy demands, while ensuring natural lighting quality.
High density context
Daylighting analysis of all levels aided in interior layour design
Thermal model squematic plan
Interior courtyard facades received different glazing treatments
Simultaneous use of cooling and heating demands were studied to inform HVAC project design
Cooling and heating load studies
Courtyard comfort conditioned were assessed to propose skylight design solution