Wednesday, July 3, 2019

Recent Project: Malvern Hills: 'Wind Screen'


I've been dreadful at posting new projects here, mainly because I've been busy designing them rather than posting about them, but I'd like to catch up a bit. There are quite a few to show you!

This project here began being discussed two years ago. It's for a very exposed very steeply sloping site in Wellington. That's just Wellington, right -- but this one is a little different: with the very steeply sloping site comes striking views right across the harbour: which makes it extremely exposed -- both to the public eye and to the weather.

And as they say, Wellington doesn't have a climate. It has weather.

The strategy, a simple one, is to hang the house between the retaining walls that are needed to hold up the street, and the cantilever beams sprouting in pinwheel fashion from a single large concrete pile. This takes account of the sloping-site problem. One enters and sleeps at the top level, lives on the middle level, and offers children and guests sleeping and play space at the bottom.

Did I say "simple"?
Once out of the ground, the house needs to deal with the weather problem. Because this house doesn't just have slope: with that slope comes both the spectacular views over the harbour that make it worth building there, and all the winds of Aeolus sent to batter anyone daring to step outside to see it.

Trouble. But as they say, problems are an architect's friend!

View from the proposed roof terrace: spectacular view; spectacular wind!
So how to solve this problem? The answer is a "wind screen" built around the drum containing our lower floor and protected terraces.

Add these windscreens around the outer drum, intersect this with the main circular drum, add trees and vines, mix all ingredients sagaciously on this sloping site and you have this house -- or nearly so. From there it almost designs itself!


Concept

Concept Plan

The house that designs itself:
add retaining walls and one three-storey drum to a sloping site; to that add
an intersecting drum with wind-screen,
an open terrace extending the view back to the city,
and trees and vines
and voila!


Can you see this rising from the hills above the Wellington Harbour? A strong form making it easily seen even at great distance.

And while the screen looks a little 'heavy' in the pictures, our windscreen is an almost diaphanous perforated metal screen, lightweight, decorated and visually permeable. A light steel veil draped over the drum and cinched down tight; a "breathable" screen, with sections easily slid away on Wellington's intermittent but glorious good days.

This Cultural Centre in Corsica gives you an idea of just how visually permeable a fine-grained steel 'veil' can be:



Cultural Centre in Bastia, by Paris Studio DDA
And this house in Israel shows how permeable (yet still sheltered) a coarse-grained perforated screen can be.

Pitsou Kedem's 'MA' House' in Israel
And this here is our screen, suggesting how decorated our screens can be; perforated metal being an ideal material to take integral decoration, we have added ornament based upon the interlocking circles of our two "drums." The effect in the sun is dramatic!:


Visually permeable perforated decorated metal screen, rejoicing in the sunlight (above) -- and rendered in red below:



Drums in the sun

The perforated metal is used to create a see-through screen that offers protection from the wind on the main terrace overlooking the harbour, with other open decks (that can be used on better days) that take the visitor further out to enjoy views over the central city.

View out to open terrace
 The perforated metal drum continues from base to top floor, piercing floors all the way up to form the balustrade at our entry level. Each of our levels, of course, enjoy spectacular views!

View from day bed on upper level
View from built-in seating at 'back' of lounge
These axonometric cutaway plans of each level should give you some idea of how it all comes together ...


[Hat tips, of course, to Sullivan, Botta, Melnikov..]


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