Green Building 101: Using Bioclimatic Design to Build a Passive, Sustainable Dwelling

Bioclimatic Design
A Bioclimatic Design building, Ecobulevar Vallecas in Madrid Spain

Building a greener dwelling isn’t some lofty idea but practical solutions we all must make to build a more sustainable future. As we started with consideration of space in Green Building 101- Week 1; now we look at the environment around us as we build our sustainable dwelling.  

By building in harmony with the natural environment and cooperating instead of fighting with the regional climate; Green Building takes a passive approach which requires less energy to run once the building is erected.

 The Center for Renewable Energy Sources and Savings (CRES) states, “The reduction of energy consumption in buildings can be achieved by simple methods and techniques, using a appropriate building design (bioclimatic architecture)”. Bioclimatic design is utilized during the design phase of a home or building.

Bioclimatic design help conserve resources while facilitating the use of the local climate around a dwelling to construct a green home or building that is passively sustainable. Some of the concepts of Bioclimatic Designs are, “Site and climatic analysis, design strategies that reduce or eliminate the need for non-renewable energy resources and how these strategies specifically affected placement, orientation, and shading of the building.” according to The American Institute of Architects,

“Eco House-Practical Ideas for a Greener, Healthier Dwelling”, by Sergi Costa Duran, lists 10 fundamental Bioclimatic Design concepts:

 1.  Main façade face south which provides shade in the summer and sunlight during the winter time. The positioning of lower edges of roof are dependent upon the latitude of the building. 

2.  Home should be close to deciduous trees (trees that shed their leaves annually) which will provide shade in the summer.

3.  Solid walls and materials allow greater “thermal inertia”-the ability of material to store heat and energy- which builds more heat to release steadily. A heat recovery ventilation system can be installed which includes: solar thermal panels, insulation, triple-glazed low-E windows, supply air, extract air, heat recovery ventilation system and gound heat exchanger.

4.  Large glass should be installed in south side of house to allow solar energy to collect.

5. A thermo-wind self suction hood should be installed in chimneys which expels fumes and excessive heat. It also prevents them being sucked back in to the home.

6. Abundant use of skylight and strategically placing them according to sun positions for best natural lighting. Skylights can light up hallways, bathrooms, attics and other rooms. Using hinged skylights allow the windows to be adjusted according to season. “Since they fold up and can be adjusted, when opened in summer they get rid of the hot air and create cross-ventilation,” Duran said.

7. The use of natural insulation and breathable, waterproof materials for the roof.

8. Using local resources for building materials to cut down on transportation carbon energy.

9. Radioactive materials should emit no more than 180 mrads annually; Radon gas is a well known lung cancer causing radioactive chemical.

10. Home’s electricity must meet a requirement of volts per meter. Synthetic and ferromagnetic materials should not be overused as they create electrostatic charges.

 Other features such as rainwater collection, photovoltaic solar installaction (solar panels), wind turbine, underfloor heating such as ceramic and mortar, geothermal installation and roof garden can also be utilized for Bioclimatic design.

A Bioclimatic Design building, Ecobulevar Vallecas in Madrid Spain

Although, the Bioclimatic design primarily focuses on Environmental sustainability; it also takes into consideration the inhabitant’s comforts as well. According to CRES, Bioclimatic Design includes “Adjustment of environmental conditions in the interiors of buildings so that their inhabitants find them comfortable and pleasant (i.e. increasing the air movement inside spaces, heat storage, or cool storage in walls).” Mixing nature with creature comforts is the perfect balance of well thought out and intuitive design.

With some logistical organization and well thought out design process, building a green home doesn’t have to sacrifice comforts of a home. Using the resources around us and working with Mother Nature, we can build a perfect home that harmonizes with its natural environment. Bioclimatic design makes most of the local climate including the sun, the wind and rain to design a comfortable dwelling that works passively to heat and cool the indoor space and even light the building.  

Editor’s Note: Green Building Elements is launching a Green Building 101 Series which will be posted bi-weekly, on the 1st and 15th of every month. Take this challenge with us as we learn how to build sustainably from the ground up. 

Source: The American Institute of Architect, Eco House by Sergi Costa Duran, Center for Renewable Energy Sources and Savings

Photo Source: Flickr by CCL-Pablosanz; Firefly Publishing

Wedding invitation leads third-grader to Uruguay.(Neighbor)

Daily Herald (Arlington Heights, IL) February 6, 1997 Byline: Jean Hockensmith Transporting Krysta McIntyre, 9, to the beach last December took more than imagination.

The garden village girl boarded a 777 airplane and 17 hours later landed in Buenos Aires, Argentina. A commuter flight took her to her final destination of Montevideo, Uruguay.

“I left Chicago at 6:30 p.m. Dec. 5 on the newest plane, a 777,” said the Ardmore School third-grader. “For some of the time I played with stuff I brought, then I fell asleep.” Krysta’s traveling companion was her grandmother, Barbara McIntyre. The occasion for the excursion was the wedding of Barbara’s son, William.

A civil ceremony was held in the United States in November. The wedding Mass was set for December in the bride’s native Uruguay.

Krysta, one of Steve and Eileen Decker’s four children, was chosen to represent her family and keep Grandma company. this web site essing wedding invitations

After landing in Montevideo, Krysta was hungry. The decision on what to satisfy her appetite was easy – a “balleta felix” or a “Happy Meal.” “We looked around, then went to McDonald’s and then checked into the hotel,” said Krysta.

While there were similarities, the 9-year-old also found differences. The Hotel Oceania was on a beach complete with palm trees.

“The house looked different and the president’s house had guys with rifles standing outside so no one could get past,” said Krysta.

The wedding took place in a 100-year-old church with no attendants to the bride and groom. The ceremony was otherwise traditional.

The reception, held in a national monument, had the requisite disc jockey and everyone did the Macarena, but there was no bouquet or garter toss.

While guests did enjoy an elaborate sweets table, wedding cakes are not the custom in Uruguay. Despite language and cultural differences, Krysta played with children her own age.

“They chased around having a good time even though they couldn’t converse,” said Barbara McIntyre. here essing wedding invitations

Krysta’s grandmother, a second-grade teacher, gave her a bound blank book that became a journal of the trip. Eager to share her experiences, Krysta rushed to school the day she came home.

Shells and rocks from the beach she went to daily, a stamped passport, postcards and a flag are mementos Krysta brought back to the United States.

“When she saw the flag (it has a sun with facial features in the upper left corner) she said, ‘Look, a smiley face!’ ” said Barbara McIntyre.

About the Author

Susie Kim-Carberry is a professional writer who's been featured in numerous publications, both in print and online. She started as a features writer for The Bayonet Newspaper in 1997 and studied print journalism at the University of Georgia's Grady College of Journalism and Mass Media. Kim-Carberry is currently focusing on online media as a freelance writer, content producer and also serves as a site editor for Important Media. A self-confessed travel addict, her other equally important job is being a semi-crunchy mom to her two daughters. She tries to maintain a balanced life through her yoga practice and secretly dreams of being a Parisian one day.