Week 11 Lecture 10/10/16 by Brett Pollard (Hassell)
Sustainability: A Perspective
Some examples of buildings and their facade choice as a means to reduce internal heat load.
123 Albert Street, Brisbane
Double light scoop louvres used on northern facade, with a singlr light scoop system used on the western facade.
Building faces due west.
Northern facade has large sun shades as standard. Fins on the side of the building reduce the low angle sun
Western facade has a hybrid double skin which is open at the top and the bottom which heats the space which can then circulate through the top space. The walkway systems also provde a degree of hading. Fritting patterns used throughout the composition of the facade.
Western facade double skin; east and western facades also have vertical fins to prevent the low angled sun. Southern facade also has thse large fins to reduce heeat load.
One40 William, Perth
Minimising east and west facing facade. Maximise north and south. Taller buildings to the north shade each of the smaller buildings to the south. Vast majority ofthe floorplate has excellent natural lighting and views.
Primary issue is internal load so night purging is used as the climate allows, as for many hours of the day the outside temperature will be cooler than the outside. Single glazing was used and shaded very well, to allow the excess heat to move to the outside.
Vertical lourves and perforated panels are used on the western facades.
Living Building Challenge
Sustainability tools are set up to reduce their impact. Sustainable means that you’re “100% less bad”. Therefore, newer tools look towards restorative and regenerative systems to be “good”, rather than just “less bad. A living system” approach.
Global Change Institute: Target of Living Building Challenge
- thermal wind chimney
- operable facade
- 88% of the year the building is designed to run naturally- no mechanical AC use etc
- chilled beams and cooling coils in slabs
- labyrinth AC system
- solar thermal heat wheel for humidity removal
- green wall: biofiltration
- underfloor air distribution grills
- goepolimer concrete use
Proven health benefit of interaction with nature: Anjali Joseph (2006)
- Living Building Challenge <http://living-future.org/lbc>
- Anjali, Joseph 2006, “Healthcare Design Insights| Daylightin: The Impact of Light on Outcomes in Healthcare Settings”
- Dan Airlie “Predictably Irrational”