Is this house in Kake, Alaska a cautionary tale or a green innovation? My initial reaction was that this was a cautionary tale, a warning about what could happen if you stayed still long enough in a temperate rainforest. First, the moss, then shrubs, followed by trees. Give it another 150 years or so and the house will likely assume the characteristics of an old growth forest.
Green roofs are, however, quite fashionable these days. If you happen to look up next time you’re passing the new library in Ballard you might notice there is quite a healthy growth there too (shown in the photo below and described in more detail here). And a green roof is one of the features of the proposed Ballard West development on the old Ballard Branch Library site.
The City has produced a self-guided tour to green roofs in Seattle that includes the (current) library and two other sites in Ballard, but neglects to include this one, located just a few blocks from the library.
More unidentified green roofs are highlighted in this slideshow from Grist. (I usually disagree with the comments, but I really can’t condone some of the captions on this slideshow and I’d also quite like to know where the buildings are).