Architect Jean Carroon on Sustainability, Heritage and Buildings

Jean Carroon spoke last Thursday evening at the NCC’s Urbanism Lab and she also did a short presentation to NCC staff during the afternoon the same day. Jean is a principal at Goody Clancy in Boston, an advocate for sustainability and heritage architecture, and the author of Sustainable Preservation: Greening Existing Buildings. She opened her talk by saying there’s a perception that Canada is ahead of the US on the issues related to sustainability.

Jean says the conversation on sustainability and the built environment is changing (sort of). Resilience, well-being, bio mimicry, biophelia, and people habitat are the new buzzwords. The average architecture firm in the US is 10 people and Goody Clancy is about 60 people. Her firm doesn’t happen to do developer driven work, and she feels this is a benefit because of the longer service life demanded by institutional clients.

Jean works primarily on urban buildings that have heritage significance. She shared Bill Reed’s dimensions of regenerative design; a way of thinking about buildings that proposes they could contribute to the environment rather than simply do less “bad”. Jean walked the audience through some of the main contemporary trends in sustainability as she sees them.

Some familiar metrics for sustainability include LEED, BREEAM, Promise, CASBEE, Green Globes, GA TOOL, Energy Star, STARS, 2015 Enterprise Green Communities Criteria. Jean says she used to be a US Green Building Council (USGBC) skeptic, but has been won over as they have taken on the chemical industry.

Passive Haus is on the rise as a prevalent certification in the US, as is Living Building Challenge; a highly aspirational model. The Bullitt Centre in Seattle is one of the first buildings certified under the Living Building Challenge. A problem with this model is that it proposes every building should be net zero. Jean doesn’t understand this requirement; buildings should work together with each other. Not every building needs to generate it’s own power.

Net zero energy certification is another valuable model, but will require a lot of dependence on batteries, and forgets some key issues: how big is a building? How many people are served? How many buildings are meeting this independently and are co-located?

The 2030 Challenge is another model that is going gangbusters in the US. It started with energy as a focus, but is now really expanding the conversation on carbon, and has a lot of US Architecture firms joining the initiative. There’s a conventional wisdom that you must engage the broad marketplace in a basic conversation to move the debate forward in a meaningful way in order to succeed. This is what 2030 Challenge has done.

Material data is a new trend in sustainability. A lot of companies and architectural product manufacturers are now willing and able to do this.

The Well Building Standard is part of a new sustainability trend that takes human health into account. This system is compatible with LEED but focuses on human health. The premise is that humans are more productive in healthy environments.

Windows, for example, are a key component of sustainability in buildings, and for some reason, an emotional issue for building owners and architects. Jean is a big proponent of keeping heritage windows where possible; basically, a replacement window will always be replaced again at some point. Better to retain the existing windows.

Jean asked whether Canada is working on carbon footprint and buildings, and the answer is that yes, Canada is working on this, but is probably not as progressive on this subject as they should be. She talked about how packaging (plastic bottles, for example) should be the responsibility of the manufacturer. We as individuals in our culture have taken this problem on, but it should be the responsibility of Coca Cola, and other companies, rather than the consumer. 

Is carbon an issue that should be addressed at the material level? Should we pay for the environmental impact of the product? If we changed the economic system so we weren’t allowed to ‘trash’ other countries, then the actual cost of building materials, for example, would be very different. Economics drive all building decisions; today replacing windows is often less costly than repairing existing ones, but I think it’s a valid question whether this should really be the case.

For me one of the main points that Jean made is that costs of consumer goods and building products don’t really take their environmental impact into account. If our society and its regulators were to address this issue, we’d see a lot more progress toward appropriate environmental footprints for human activities.

Should Cities Require LEED Certification?

I put this question to Larry Beasley and Jonathon Barnett, authors of a new book called Eco Design for Cities and Suburbs, following an event at the NCC recently. Their answer was interesting and, based on their combined decades of experience with urban planning. 

Vancouver’s successes with sustainable development have provided material for this blog and were no doubt shaped by Larry in his role as chief planner for that city. His and Barnette’s perspective were interesting though.

They pointed out the difficulty with a city requiring a proprietary certification. Basically the result is a public entity tying themself to a standard which is non-governmental and not accountable to the public in the same way. Larry outlined Vancouver’s approach which was to require high performance buildings, and simultaneously modify their building code to have built in a high standard of environmental performance. 

While LEED is broadly required by agencies, states, counties, and cities in the US and Canada, including Vancouver, its application remains controversial and lobbying against use of this standard is nothing new.

Would love to hear readers’ perspectives on this.

Image: Vancouver BC, by Eric Witsoe on 500px 

  
 

Guardian UK’s New Built Environment Page

One to follow

A new building at St. Michael’s Hospital, Toronto

… The Guardian has a new site dedicated to the future of the built environment. They plan to address the philosophy of the way we will live in the future and cover the world of architecture and building planning. They have taken the challenge to analyse the political, economic, social and technological aspects of the urban spaces of tomorrow. Stay Tuned.

http://www.guardian.co.uk/what-future-urban-living