LIVE image

Squeezing big box stores (and more people) into cities, living in a CO2 fog, and tallying up the value of green homes.

The "Värm" home from Bensonwood's Unity Homes offshoot is inspired by Swedish design.
Photo Credit: Unity Homes

How much more dense can you get?

It turns out you can get pretty darn dense even without building mile-high skyscrapers, according to Lloyd Alter at Treehugger. He points out that Montreal has areas packed with three-story walkups and 11,000 people per square kilometer—and argues that the density-by-skyscraper philosophy just doesn’t work in most places, in part due to “losses for circulation, fire stairs, elevators and separating distances between buildings.”

But does the way we measure urban density even make sense? Richard Florida at The Atlantic Cities shares a new U.S. Census Bureau report that employs a newer metric called “population-weighted density” and includes 2000 and 2010 datasets for all U.S. Metro areas. “These new data on various types of density from the Census will enable us to take a deeper look at the role of different types of density on the innovativeness, productivity and economic growth of cities,” he writes.

Mr. Big Box goes to town

Target’s urban “concept stores” are opening in more metros, and Lamar Anderson at The Atlantic Cities takes a witty look at the positives (smaller footprint and integration with existing architecture) and the negatives (“So far, the CityTarget concept is more Target Lite than a truly fresh direction for the brand”).

Clear the air, clear your mind

Perhaps we finally understand why people do dumb things at office parties and make poor decisions on their SATs: blame the carbon dioxide!

New research summed up in ScienceDaily suggests that high CO2 levels are more than an indicator of poor ventilation: CO2 actually seems to make it harder for us to make decisions.

Also Read

Valuing Green: Appraisals to Include Environmental Features

Net-Zero Mart? Big Box Design Guide Offers 50% Energy Savings

Bensonwood Reinventing the House

So next time it’s stuffy and you have a sudden urge to photocopy your nether regions…you might consider getting some fresh air instead.

In seriousness, the researchers are worried about classrooms because they suspect poor ventilation may have implications for learning, and classrooms often have high occupant density and CO2 concentrations. They are planning to do more testing.

Baby steps for green home appraisals

The demand for green homes is growing, and the need to properly appraise those homes is growing too. But there are a lot of obstacles. Some of these the Appraisal Institute has started to address, but there’s only so much you can do about it when not enough comparable homes are being sold and when lenders refuse to recognize the green features as valuable, points out Mary Ellen Podmolik in the Chicago Tribune.

She takes a look at how far the Appraisal Institute’s efforts have come since 2008, and the report is pretty disappointing. A couple things that do seem to help: documentation of green features and third-party certification of energy efficiency.

New green prefabs from Bensonwood

Whatever the appraisers and banks think, clearly many people are willing to pay good money for green homes, for a lot of reasons. The new line of prefabs from Bensonwood is a good example.

Matt Hickman reviews Unity Homes over at Mother Nature Network and finds a lot to like, from the size, style, and price tag to the low-VOC finishes (pretty much everything except the “esoteric” names, like Xyla and Zūm). Watch this space for our take on this new line in the near future!

If you enjoyed this article, sign up for BuildingGreen email updates

*

Comments


— Share This Posting!

Recent Discussions

posted by ccnyIP
on May 20, 2015

I Have been in construction for many years and am now finishing my degree in mechanical engineering. I am truly amazed at reviews of many things...

posted by pmelton
on Apr 30, 2015

Here's a quick explanation of what a hygrothermal...

posted by pmelton
on Apr 29, 2015

John, I'm sorry to hear about your troubles. Based on my conversation with Peter Yost, our resident building scientist, it sounds like you've...

Recent Comments


The Building Envelope: Our Third Skin

Robert Riversong says, "I helped mix and install wood-chip clay-slip in a double-wall envelope, and it was done thoughtfully with a mixture of aggregate sizes, including..." More...

steven case says, "Hi Tristan I was wondering if you new or now of anyone that is living in a house of clay chip. I would be interested in speaking with them...." More...

Tristan Roberts says, "Hi Steven, the material you are referring to is usually called light clay, or sometimes Leichtlehm, from the German. It can be made with straw or..." More...

steven case says, "I just finished a class about clay and wood chip infill for walls have you ever done any testing or an article about them. All the oldest homes still..." More...


What Is a Hygrothermal Building Assessment?

Robert Riversong says, "As all water transport mechanisms and driving forces other than gravity are bi-directional (water is indifferent to which way it moves), there are..." More...