A recent post from CityLab delves into an on-going. Entitled ‘Are ‘Treescrapers the Future of Dense Urban Living?’, explores the concept beyond the fantastical and thinks about this type of work in terms of reality and the more pragamatic elements. Weird Dune references about Passive House designers (?) aside, having some critical evaluation the points that were brought up by the architect in the story are valid.
I do think that the focus of the comments maybe relied a bit too much on the particular type of work (i.e. hyper efficient building envelope). If you see everything through the lens of Passive House, and energy envelopes and embodied energy for structural upgrades, you may miss the trees and the forest.
Admittedly, I am both a supporter and critic of the idea, which I’ve been referring to as Vegitecture (not Treescraping, for hopefully obvious reasons) for some time now. Beyond being an aesthetic choice which has strong biophilic connections, there’s ecological and even, yes, energy considerations with integrating vegetation into buildings. It’s definitely a key strategy for a less building centric idea of passive heating and cooling, which has to me has always included vegetation surrounding structures as part of the equation – using evergreen vegetation to block colder winter winds and shade for cooling and deciduous to provide summer shading and opening up during winter for additional heating/sun after leaf drop. That diagram I think i first say in first year intro to landscape architecture.
Of course everything comes at a cost, so an accounting of cost to benefit is necessary, but that cost also much include other items in the ledger, like health benefits of access to nature, additional passive cooling and heating benefits that could be integrated with exterior and interior system integration. The opportunity is to make these projects work and think of new ways to better integrate them into the buildings in artful and functional ways.
I’ve discussed typologies before, and it’s interesting to see the evolution of the types, from building integrated living walls above, to terrace planters, roofs decks, more traditional green roofs, and much more. The possibilities in photoshop, alas, are endless. But in reality, there are some additional considerations, all of which should be taken into account. Some more images of green on buildings – nothing new here on this blog. More at the original post on CityLab as well
And these definitely trend towards the fantastic, which is part of the reconciliation between what can actually work and what looks cool in a rendering. So, yes, that involves messy practicalities the additional structural loading, and how to incorporate thermal breaks, and many others like how to maintain vegetation, how to irrigation, issues of wind uplift, leaf litter, structural capacity, and many more. Great discussions, and necessary ones, as we grow and evolve the concept.