Biosphere and Audubon
When the $200 million, 3.15-acre enclosed space of Biosphere II opened in 1991, needless to say, people were curious. But these curious throngs couldn't simply be admitted to the closed system of the biosphere itself, so a visitor's center was built -- and insulated with Air Krete.
The New York City headquarters of the Audubon building was also insulated with Air Krete, in what the building's architect called a "massive thermal shell upgrade" that allowed the 1890 building to save $100,000 in energy costs per year [source: Croxton Collaborative Architects].
This is to say that not only is Air Krete environmentally sound enough for use by even the most demanding environmental organizations, but also that its functionality has been vetted by major corporations.