Showing posts with label LEED. Show all posts
Showing posts with label LEED. Show all posts

Monday, December 6, 2010

LEED in trouble?

Henry Gifford of Gifford Fuel Saving Inc filed a federal lawsuit against the United States Green Building Council (USGBC). Here is a summary of the complaint from AnnArbor.com and Harvey Berman's article, "Federal lawsuit attacks LEED building rating system"

"At the heart of the 24-page complaint are claims by Gifford that the USGBC has deceived consumers and others by misrepresenting the benefits of LEED certification relating to energy efficiency and savings and attributes of the LEED rating system.

Some of Gifford’s criticisms of LEED include that it:
• is not based on objective scientific criteria.
• is not based on actual building performance data but rather on projected energy use.
• does not require verification of data submitted in certification applications and does not require actual energy use data.
• is not based on actual measurements but rather computer modeling of anticipated energy use levels."

The $100-million lawsuit alleges fraud, unfair competition, deceptive trade practices, and false advertising, among other things, reports TreeHugger.


The [alleged] problems with LEED wouldn't be such an issue if the program was totally voluntary. In the marketplace, problems would be identified, and other programs would be developed to compete, which is what has happened in the residential market. But many cities require civic buildings to earn LEED certification. See a brief list here [PDF]. This means that taxpayers are being forced to pay a specific third party--as opposed to say, a contractor or consultant, who have to present bids and proposals, and the most qualified candidate and/or lowest bid is chosen.

There is an argument that sustainable building should be codified (so that it is required just like life safety, accessibility, energy efficiency, and fire protection). Sustainability and green building could be seen as just as important as life safety, considering the impact of building on the environment and the damage to natural resources, pollution of air and water, production and release of carcinogens in the manufacture of products. From experience, a project can have the best green intentions, but the numbers just don't work. The more green building flourishes (or, in the case of this argument, is required) more products and competition could bring down the cost.

But codifying green building is a slippery slope, as present day conventional wisdom is often later proved incorrect or incomplete. For instance, there is legislation to eventually outlaw incandescent light bulbs. As I noted in an earlier blog post, there is research out there that suggests that Compact Fluorescent Light bulbs (CFL's) contribute to the carcinogenic "electro smog." I don't think there is enough research out there on the effects of CFL's to completely outlaw incandescent lights. I may be one of those crazy people loading up on incandescents like it's Y2K before they are outlawed, though there is hope with other technologies, like Light Emitting Diode (LED). 

The business of certification of green buildings is in its infancy, relatively speaking, and no organization can expect to get it all right in the first few rounds. This is especially the case in post-construction building performance, which will naturally take time to test and allow for trial and error.  Hopefully, this lawsuit and the attention surrounding it will serve to improve existing guidelines, and perhaps open the door for other nonresidential certifications to compete with LEED.

Full disclosure: I am LEED certified, but we have never worked on a LEED certified building. I would venture to guess that this is mainly about the cost of certification, not a lack of interest in green building. We have certified a Built Green home, and are currently working on Built Green, Energy Star, NAHB Green and Builder's Challenge certifications.

Wednesday, September 8, 2010

Book Review: Green Metropolis by David Owen




Based on the subject matter and publicity this book has received, it was practically mandatory that I read it, but I was not expecting much. I was very pleasantly surprised. Owen takes on pop conventional wisdom at every turn and takes the wind out of many environmental sails. The main argument of the book is that many of our attempts at being green (i.e. reducing our carbon emissions) are futile without striving for density, with Manhattan as the best American example. Slapping solar panels on a McMansion in a new greenfield development does not make a green building, says Owen, because the real environmental damage is the infrastructure that supports the sprawl, and the amount of driving it takes to live in a typical suburban town. The most important number in your car isn't the gas mileage, he says, it's the odometer. 

"Oil is liquid civilization: we  are what we burn."


Owen has some harsh words for the LEED system, mostly for contributing to what he calls "LEED brain," which I summarize as forsaking common sense for racking up points for green building projects in order to gain recognition. He offers common sense tips for making a new home green, including build a small home on a small infill lot, thoroughly caulk and insulate it, and use efficient appliances. He says that many of these points, especially the importance of caulking and insulating, aren't particularly glamorous or  photogenic like small residential wind turbines, which he thinks are "wasteful investments in inappropriate technology." He quotes Thomas L Friedman's latest book, "Hot, Flat and Crowded," his chapter title "If it isn't Boring, it isn't Green" which Owen says is a reminder of the "dangers and temptations of LEED brain." I can't totally agree with this, as I believe there are exciting technologies that can reduce carbon emissions and great recycled products, but I have been accused of being a regressionist, and tend to think that green building is mostly common sense, and has been for all of human history until the industrial revolution, when we started to use brute force against nature instead of working with it.

Owen discusses the new Sprint Headquarters in Overland Park, Kansas, which has been recognized as a "green" building and has the typical green building rap sheet. Owen says:


"There is nothing truly ecologically enlightened about Sprint's Overland Park campus, no matter how many so-called green features the individual buildings include, or how much recaptured runoff water the ground staff uses when irrigating the complex's dozens of acres of lawn,  or many bicycles are (theoretically) made available  for trips between buildings, or how many trees the company has planted, or how many PETA-certified border collies are used to keep migratory birds from defecating around the edges of the man-made "wetland area"...The campus is a sprawl bomb, and the "open space" preserved on the property merely makes the impact worse."


An office like this would be much more environmentally friendly if it were placed all in one office town in downtown Kansas City (where there is surely high vacancy), creating more critical mass in downtown which would allow for more efficient transit from the suburbs. He also has harsh words for the Rocky Mountain Institute's headquarters in Snowmass, Colorado, which is also packed with sustainable features, but in a "thinly populated area," meaning that employees have no other choice but to drive to work.

Oh, and I love the term "sprawl bomb." I'm going to see if I can use it in a sentence soon.



The most interesting point that Owen makes is that the most critical environmental issues facing a city are not planting green roofs and trees, or allowing rain barrels and solar panels. He argued that the most critical environmental issues facing a city are law enforcement,street noise, resources for the elderly, crime, parks, and schools-the quality (or lack thereof) these things are what causes people to abandon the city for the suburbs, especially when they have kids. The more people stay in the city (and in turn the more children raised in the city) the higher the density and the tax base, and therefore the quality of life. Owen mentions cities such as Minneapolis where schools are being closed in the cities while taxes are being levied to build more schools in the sprawling suburbs. If services were better in the city, more families could stay and their kids could attend established schools--which not only saves money because the schools are already built, but these schools are more likely to be serviced by roads with sidewalks and public transit, obviously rare in the suburbs. 

The question that lingered in my mind for most of the book, as I'm sure it does for most readers since Owen answered it at the end, is if he thinks Manhattan is so great, why doesn't he live there anymore? He and his wife lived there for seven years before relocating to rural Connecticut.  

The answer is, of course, not everyone can live in Manhattan. From my previous blog post, "Green Building Myths": Per ca pita, rural areas have higher carbon footprints than dense cities like NYC, which is arguably the most important metric when considering what's "green". But a rural area may seem "cleaner" because of the lack of air pollution (which can be concentrated in cities), green spaces, clean water, and the general aesthetic and aromatic pleasantness that comes with a lower population density, like lawns, gardens, and contained trash. We need to understand these differences and strive to improve the undesirable aspects of city living while building on its virtues. 

References: Sierra Club Challenge to Sprawl
Urban Land Institute Booklet (PDF): Higher Density Development: Myth & Fact

Related books I recommend: 

Suburban Nation: The Rise of Sprawl and the Decline of the American Dream, by Andres Duany, Elizabeth Plater-Zyberk, Jeff Speck


Asphalt Nation by Jane Holtz Kay 




Monday, January 25, 2010

Forget Energy Star and LEED, Green Building is Passivhaus

This article and slideshow comes from Treehugger.com. Passivhaus is the latest buzz in the green building world, but it has been around since 1990, with the first buildings in Germany.

Passivhaus with shading devices for summer. Matthias Schindegger of Maschin Arhitektur. Photo by Peter Jakadofsky.

Passivhaus requires a maximum energy usage (120 kWh/m² per year), a blower door test, and an annual heating demand of less than 15 kWh/m² per year.

Green building rating systems will continue to battle it out for superiority, and Passivhaus is the latest to vie for its spot in the US.