Green Building Elements

Given the climate change coming to most regions of the US, this new roof idea is a great passive cooling solution worth looking at even if you don’t live in the desert regions… now.

Because, by century’s end; you might.

“Summer temperatures in Florida could rise by 10.5F, with the heat effect multiplied by decreased rainfall under the higher emissions scenario. There would be increased hurricane intensity and rising sea levels leads to loss of wetlands and coastal areas.”

“When you’re out in the desert, shade is gold. It’s the most valuable asset you have, so to make more shade was [the] strategy,” says Lloyd Russell of this house he designed to withstand both the scorching heat and the cold of the desert for a client in Southern California.

Russell’s very low carbon way to cool a home is another example of how creatively some architects are thinking out of the box and in the process creating an entirely new design vernacular - architecture for zero energy use in a carbon-constrained, hotter, wilder new world.

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If every building had a white roof, we would be able to cool the surrounding areas. That is the reasoning behind a California law about to go into effect next month requiring light reflective roofs on all new buildings. It is already the law for new flat roofs here.

Here, architect Richard Meier and his partner Michael Palladino have apparently created a design to go one further. It’s entirely white; roofs, walls, and interiors.

So this luxury design of a cool  and airy Southern California beach house is glamorous and climate friendly.

Well, no. The McMansion-sized size of the thing at  4,280-sq.-ft is not so planet friendly; because it takes more energy to heat and cool a larger space. But this house would be well suited for a ground heat exchange to passively heat and cool itself with 55 degree air cooled from 10  feet under the ground.

As architects in California get closer to 2020, they will need to think more about passive cooling and heating and zero energy houses, as that will be the law by 2020. All new building must be zero energy by then.

Incorporate solar roofing on the white roof, and this could be a zero energy house.

The blue of a solar roof would visually extend right out to the ocean. (And conceal that horrible mess of  mechanical contraptions on that roof.) White elastomeric cool roof paint under the solar panels would help cool the modules making them more efficient on hot days.

But are architects thinking about these things?

With 2020 almost upon us:  “The beams at the roof, located above the horizontal framing, express the structural rhythm and layering of components,” explains the architect. “This cadence is repeated with the joinery of the painted aluminum exterior wall panels and modular windows. The mass of the exterior plaster walls are juxtaposed to the transparent glazed facades, creating a mosaic of layered materials.”

Blah, blah, blah.

Via Digs Digs
Images: Scott Frances/Esto

At the other end of the design spectrum from the energysucking gizmology that now pervades our lives; simple tech is quietly bringing back simplicity and sustainability as a worthwhile goal for industrial design. Here’s a good example; a low tech kitchen appliance that would go well beyond a simple energy star rating for efficiency.

This practical and simple energy efficient dish washer/dish storage unit by design students Schwartz and Steiner at the Bauaus Universität Weimar is a great example of the simple tech that the world needs now.

It is a reduction of a machine to its essentials, orientated to user-needs. This dish washer builds on the movements that we already make…

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U of Kansas grad students have just completed their chic Buffalo House at Springfield in Kansas City, designed with a very elegant approach to sustainability.

We are seeing more climate conscious design in architecture: In this case; the rain screen.

A skin over the house is designed to manage and harvest occasional heavy precipitation, to provide protection from premature decay from moisture intrusion.

I like the way the rain-screen is carried up over the roof and mounted flush with the photovoltaic solar panels on the roof for a sleek look while also protecting the building.

Like a skin over the building; this Cumuru wood cladding is designed to shed rain water separately from the structure of the building. Rain screens deter rainwater intrusion into walls - by shedding most of the rain and by incorporating storage to reuse the rainwater - which you can see below the doors here.

There’s 8 other sustainable features, as well.
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The deep Butterfly Roof

The traditional gabled roof that we are all familiar with was engineered to slough off snowfall. But in an uncertain post peak oil future of possible energy shortages and water shortages, more and more houses are showing up with roof-shapes engineered to harvest their own rainwater, and support solar power generation.

This creates a butterfly roof, the opposite of the traditional gable. The very post peak oil Kangaroo House in increasingly drought ridden Australia has the same distinctive roof shape, for the same reasons: it acts as a huge funnel for rainwater, which can then be harvested.

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Here’s, literally, a treehugger’s house:

It is built on a steep sloping grade which makes it possible to set the main level of the house up into the tree canopy, to evoke the feeling of being in a tree house.
Extending out into the forest canopy, it seems to disappear into its surroundings.

The musician client wanted a house that not only became part of the natural landscape but also suggested the flow of music…
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VisionDivision has a very innovative entry in the Design for the Children competition to design a sustainable and culturally responsible pediatric clinic in the hostile environment of the desert of East Africa. Here is what inspired their design:

Says VisionDivision; “When we saw this competition, we felt urged to create a proposal:

Insufficient water is one of the most severe problems in rural Africa. For many families it is extremely time consuming to collect and can easily start conflicts between…
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Whenever I see my friend James D’Addio, the architectural photographer, I ask him about which new green buildings he’s been shooting. Not surprisingly, in a city with dedicated green building blogs and the NYC Department of Design & Construction’s award-winning programs, NYC may be the greenest city in the United States.  Here two projects in NYC that exemplify where green building is going.

It seems like if a building is going up, its just as likely as not to be green. McGraw-Hill research tells us that 53% of building professionals expect to be dedicated to green on over 60% of their projects in the next five years. It seems like there is ample opportunity for innovation in the building industries despite a downturn in overall building. I guess NYC is as good a place as any to lead the charge.

Norman Foster’s Hearst Tower, which sits atop a 1928 landmark building in Manhattan is engineered to use 25% less energy than required by code and boasts the world’s largest “air conditioner.” The two-story, stepped waterfall is also a huge radiant cooling system that along with other measures saves 1.7 million gallons of water every year. Other interesting facts about the building include:

90% of the structural steel used came from recycled materials

More than 80% of the orginal structure was recycled for future use

26% less energy was used during construction

Light sensors and controls throughout the building

It has a 14,000 gallon water reclamation system in the basement

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How would you design your ultimate green home? My green home is one that incorporates Earth, Wind, and Fire!

Think of what technology might make possible in the next few decades and how we can use it to build homes that have a positive impact on the environment.

The growing awareness of the fact that buildings are responsible for 39% of our energy consumption, helps explain why green building and energy efficiency at home is one of the most pervasive trends in the construction industry — even as the economy struggles and home-building is at its lowest level in a generation.

Lets take a journey through our imagination and envision the green homes of tomorrow.

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The GreenRoofs.org “Green Roofs for Healthy Cities”  Conference is on the horizon in Atlanta this coming June 2009! It is just ideal for:

• those interested in creating Green Roofs.
• studying the future of Vertical Gardens/Green Walls.
• raising awareness for green roofs and living walls (vertical gardens).
• engineers, architects, landscape architects, landscape designers,  property managers, developers, roofing contractors, and students.
• anyone interested who wants a 2-day crash course in green roofs and all the beautiful benefits they bring to cities.
• creative city gardeners of all sorts.

“Green roofs are an important component of green infrastructure. They provide valuable public benefits related to stormwater management, reduction of the urban heat island, improvement of air quality (including removal of particulate matter), and general improvement of the quality of life in communities.”  ~GreenRoofs.org

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