Context

Standard organizations and committees working on building codes and green building standards are typically not frequented by architects. Yet, these committees do more and more influence what performance criteria architects have to design for. This situation is obviously undesirable since there is not feedback mechanism that reports how standard requirements influence design decisions in practice. One solution could be to get more architects to participate in the relevant professional committees to close the feedback loop. But, this is unlikely to happen in the short-term. Instead, another approach is to bring some of the questions raised in committees into schools of architecture, have students and faculty contribute to them in an academic context and to then report the findings back to the standards world. This is the larger ambition of this project, giving the architectural design community a voice in standard committees - "I am the Lorax and I speak for the ... architects."

Daylit Area Exercise

In 2011 we developed and tested a classroom exercise on daylighting that can serve as an introductory, hands-on exercise in any course or module on daylighting (paper). All you need is a daylit space and a light meter. The space should be deep enough so that there are actually parts of it that occupants might consider to be "non daylit". In the exercise students are first asked to draw the daylit boundary in a space following their intuition and to then conduct a few illuminance measurements. The instructor then plots all student assessments onto a single floor plan and determines the mean daylit area for the space along with a series of daylight simulations. The educational value of the exercise is that the students understand what their personal target illuminance for a given space type is and how their personal approach to daylight compares to current and emerging daylighting metrics. The value for research is that we gain more insight into how well our metrics mimic occupant assessments.

Pilot Study

During our initial study we found excellent agreement between a daylight-autonmy-based analysis of a studio in Le Corbusier's Carpenter Center in Cambridge, MA, (below left) and subjective evaluations of 67 architecture students of the same space. The right figure below compares the boundary of the daylit area according to daylight autonomy DA[300lux]50% (green line) and the mean student assessment (black line). The daylight autonomy analysis was conducted based on a new Lighting Measurment (LM) recommendation by the Illuminating Engineering Society of North America (IESNA).