“GOING GREEN”

1. “GOING GREEN” SUSTAINABLE BUILDING DESIGN

2. DO NOW PLEASE TAKE OUT A PIECE OF PAPER AND ANSWER THE QUESTION: WHAT DOES “GOING GREEN” MEAN TO YOU?

3. “Going Green” • “Going Green” refers to using various methods to help preservethe world and its environment. The technical term for “going green” is sustainability, which is defined as the idea of meeting our needs today without compromising the ability of future generations to meet their needs.

4. Implementing Sustainability • There are many ways to implement sustainability into architectural designs. Here are some elements to consider when designing: • Energy Usage • Heating, Cooling, and Ventilation • Biodiversity

5. Energy • The most common designs to harness energy for architecture revolve around solar energy, which is radiant light and heat from the sun. • There are two approaches to collect solar energy, active solar designand passive solar design.

6. Active Solar Design Active design uses equipment to modify the state of the building, create energy and comfort • Solar hot water systems • Solar panels Can you think of an active building design that doesn’t require the sun to function?

7. Active Design • Wind Energy Geothermal systems

8. Geothermal Systems During warm weather when the ambient temperature of a building surpasses that of the ground. Pumps are used to push heat from the building into the transfer medium and are then pumped through pipes into the ground so that the heat can be dissipated in the earth. During cold weather when the ambient temperature of a building falls below the ground temperature, the process works in reverse: the heat pumps remove heat from the ground and pump it in the building to heat it.

9. Passive Solar Design Passive design results when a building is created and simply works “on its own”. The plan, section, materials selections and siting create a positive energy flow through the building and “save energy”. • Orientation • Window/Door placement • Cantilevers • Materials

10. Passive Solar Design Solar geometry works for us because the sun is naturally LOW in Winter, allowing the sun to penetrate below our shading devices and enter the building - with FREE heat. The sun is naturally HIGH in the summer, making it easy to block the sun with shading devices.

11. Heating, Cooling, + Ventilation • Heating, cooling, and ventilating a can require a lot of energy. In order to make a building more sustainable in this aspect, consider the following: • Through placement of windows and doors, cross ventilationcould be used, whichrelies on wind to force cool exterior air into the building through an inlet (window, door) and to force warm interior air out of the building through an outlet (window, door). • Using different materials, such as concrete which has unique thermal properties, can also lead to a more sustainable building.

12. Heating, Cooling, + Ventilation • Materials Cross Ventilation

13. Heating, Cooling, + Ventilation • Daylighting Daylightingis about bringing natural LIGHT into a space. Direct beam sunlight is about HEATING the space. • Daylighting is environmentally advantageous because it: • reduces the need for electric lighting • therefore reducing the energy needed to power the lights • reducing the heat generated from the lights • thereby reducing the cooling required for the space

14. Heating, Cooling, + Ventilation Landscaping is an option when you want to take advantage of daylighting, but want to reduce the amount of direct light entering through windows.

15. Biodiversity When designing a building, we often only think about our own needs and forget the ones of those around us, such as animal and plant life. A building can be more sustainable simply by acknowledging biodiversity. This is the degree of variation of life forms within the given environment.

16. Biodiversity Some design strategies used to address biodiversity are: • Gardens (including vertical gardens) • Green roofs

17. Green design for your Structure What you need to do: Research different active and passive green building designs. Choose at least one from either category to implement in your addition for WHRHS. a. The green design must be logical for your building b. You must be able to describe how the green design would work within your design. c. You must be to explain how the green design would have a significant benefit for your addition.