Archive for SS
Video: Prototype LEED-Certified Office Depot Opens
Posted by: | CommentsOffice Depot is opening it’s first LEED-certified prototype store in Austin, TX. What makes this store so significant is that the prototype that has been approved by the USGBC to be replicated in order to streamline future LEED-certified locations.
The model location features, among other items, 52 skylights for EQ, solar panels providing 10% of energy needed to operate the store for EA, native low-irrigation landscaping for WE, a high-albedo roof and preferred parking for EEV’s towards SS and high recycled content concrete and parking curbs for MR.
Kudos to Office Depot - learn more about their environmental stewardship program here.
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Green Paks Green Roof: Quick Install, Easy Roof Repairs
Posted by: | CommentsWe recently toured the Fountain View mixed-use development in Chicago, which is targeting LEED Silver certification, and came across a modular green roofing solution worthy of mention. Green Paks, produced by Green Roof Blocks, are a low-cost solution with one of the quickest installs we’ve seen yet.
What’s great is the simplicity of the system. There’s 4″ of growth medium in each 20″ X 32″ high-density polyethlyne fabric module, which are then cut and planted on-site.
The photo below shows the product immediately following installation. The video right after it is a real, time-lapse depiction of the same roof system relocated for roof repairs, then reinstalled. The modular nature of the system makes the process incredibly simple.
We’re told that the cost/SF of this system starts at $7, which places it a the low end of the cost spectrum. If you have had any experiences with Green Paks, please tell us about them.
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Icynene Insulation and a Green Cheese Factory
Posted by: | CommentsOntario, Canada-based Icynene has developed an expanding, spray foam insulation and air barrier product derived from castor oil. The product exceeds ASTM standards for bio-based materials, is 100% water-blown and insulates and seals in one step.
For those that don’t know, as I didn’t until I conducted some research, the castor plant is an incredibly sustainable and non-toxic crop. Castor beans don’t require irrigation (in normal conditions), do not need to be treated with pesticides or fungicides and yield more than twice the oil of soybeans by weight. In addition to the oil’s other modern usage in beauty products, it has been used as an ingested folk remedy for at least 4,000 years. Yes, 4,000 years - castor beans found in Egyptian tombs have been carbon dated.
An example of the Icynene product in action is the LEED Platinum Fifth Town Artisan Cheese factory (seen above) in Prince Edward County, Ontario. Given the factory’s unique interior environmental conditions required to cultivate cheese, it was critically important to create a high R-value building envelope that maintains conditions in all seasons and prevents condensation and mold growth. The Icynene product was additionally used in the interior walls to create a thermal and vapor barrier between the administrative/retail areas and the production areas.
Other features of owner, chef, and eco-entrepreneur Petra Cooper’s factory are a subterranean, earth-cooled cheese cave, a geothermal heating system and solar PV. They targeted, but I couldn’t confirm, 13 out of 13 for SS (the 20 acre site is a natural habitat for deer, beaver and native bird) and achieved a large number of MR points with local materials, recycled content and landfill diversion.
And, it’s a pretty good looking cheese factory, right?
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Survey Confirms Broad Acceptance of Sustainability, Highlights Challenges for LEED
Posted by: | CommentsA recent survey conducted by California law firm Allen Matkins showed strong, broad support for green building in general, but also indicated less enthusiastic support for the USGBC’s LEED certification program as the primary benchmark of the movement. Specifically, the survey found that respondents’ willingness to obtain LEED certification had slipped from 76% in the previous year’s survey, to 66% in this year’s results. What gives?
The survey included responses from 900 design professionals, contractors, subcontractors, construction planners, building owners and others in the industry. According to Bryan Jackson, one of the survey’s authors, the primary reasons for the decline in willingness to obtain LEED certification have to do with competition from other certification agencies, newly enacted green building regulations and concerns over carbon footprints. While some of these new or emerging regulations require LEED certification, the majority do not favor a specific rating system.
It’s worth pointing out that although greenhouse gases and carbon impacts – likely to be highly regulated in the future, sooner rather than later – are issues that LEED has only indirectly addressed. At least until recently. New LEED requirements being introduced this year include a “carbon overlay” that tries to account for greenhouse gas emissions And another notable change coming down the pipe from LEED in 2009 is the ability to weight regional differences, which impact SS credits in particular. For example, a school, hospital or other institution being constructed in a rural or less-dense suburban area may be challenged to gain SS credits and thus put at an immediate disadvantage to an infill location.
Notably, the survey also highlighted the lack of consensus in the development and construction community regarding the risks and costs involved with building green. Survey respondents “felt that construction risks increased for green projects compared with traditional projects” and the authors (Allen Matkin evidently specializes in construction law) are focused on addressing green building and sustainability implications in construction contracts, leases, design agreements other legal documents. Says the survey author Jackson, “When people draft contracts without addressing these issues, you have fights about who is responsible. We want everyone involved to be as educated as possible so that we can write contracts in a way that will avoid litigation down the road.” Clearly a good practice to follow.
The survey also heralds the growing use of Building Information Modeling (BIM), which employs computer-aided design to produce three-dimensional models of projects for incorporating green design elements from the very start of and throughout a project. Although many of those surveyed estimate that green construction adds between 1% and 4% to the cost of a project, those who use BIM “say that if you design for green and sustainable elements from the very beginning, you will be able to come out with a project in that could certify to Green, LEED, Gold or Silver without spending any more than conventional construction, which is pretty amazing” according to survey results.
At our firm, we have seen this to be the case as well. Integrated design-build efforts, aided by thorough understanding of high-performance and sustainable construction principles – and further streamlined through BIM technologies – usually mean that our clients can “go green” and achieve LEED certification at little or no cost. In fact, the combination of time savings, tax credits, higher operating margins and project differentiation often mean that a LEED project is in fact more lucrative than a traditional project.
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Quick and Easy LEED Calculators
Posted by: | CommentsThe most robust online calculators for LEED are within LEED Online, but here are a few ‘public access’ resources that you could consider pointing out to clients for research.
- Concrete and aggregate supplier Holcim Ltd has a LEED calculator for ALL of the credits in every LEED rating system. It’s not for reliance purposes, but a great interactive educational resource for those interested in LEED certification.
- EcoScoreCard powers the environmental calculators for quite a few building material manufacturers. Rather than list each site individually, you can visit this site and click to them all. Excellent for MR reference.
- Walkscore.com is great for estimating community connectivity within the SS division. The limit is that it only has data for the 40 largest cities in the US but, come on, it’s free.
Are there any sites that you think are noteworthy, please share them.
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LEED Certified Parking Structure: A Model for Sustainability
Posted by: | CommentsGenerally speaking, the LEED certification system frowns on automobile transportation. But, this suburban Detroit Blue Cross Blue Shield parking structure is an interesting solution to what is, in many cases, a necessary evil.
The largest contributing factors in this project are in the MR division. Pre-cast concrete, a high percentage of regional materials and other recycled products greatly helped with LEED certification. Additionally, the SS division credits were boosted by a high-density building and site reuse. The owners were able to put more than 1000 parking spaces in the footprint of what was 125 spaces previously.
What’s most notable to me is that this building serves as an excellent model for future parking structure development in both the urban and suburban environment. Parking structures will continue to be built and necessary in the foreseeable future - a commitment to responsibly addressing their design is a remarkable step forward.
Please share your comments and feedback.
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