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Concrete trees, House 75.9
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Omer Arbel Office films concrete tree-like forms that will become House 75.9

Designer Omer Arbel‘s Vancouver studio has made a film documenting the concrete forms of House 75.9, which is being built on a hay farm near Surrey in British Columbia, Canada.

The video shows the partially complete home that is being used as a testbed to continue Arbel’s experiments into the properties of concrete on the scale of a building.

Omer Arbel Office designed the unique home around a series of 10 tree-like concrete forms that reach as high as 10 metres, rising up to become the home’s ceilings.

When the home is complete, a magnolia tree will be planted in each of the concrete forms, with leaves and branches spreading over the roof exterior.

“From a poetic perspective, we decided to consider the concrete trees – with real magnolia trees planted within – as if they were archaeological remains found on site,” Arbel told.
“Our goal then was to weave a modernist language of rectilinear volumes around the pieces, creating a domestic pattern of inhabitation on the one hand, and the cinematography of passage over, under, and through the pieces on the other hand.”

“There is a certain lack of points of reference to a construction site that I love – before elements such as window frames and handrails come in,” said Arbel.
“It is at this stage that the work is most suggestive, most open-ended, most elemental, most ambiguous.”

“Very soon this will be a house, with sofas and breakfast and laundry and kids running around, and that will be amazing, in its way, superimposed against these monumental shapes,” he continued.
“But before then, there is a short window of time in which the pieces are completely abstract. It is this window of time I wanted to capture in the video.”

The house’s tree-like structures were created using an experimental method of pouring concrete that combined fabric formwork and plywood ribs.

To create the structures, Omer Arbel Office’s developed a method of pouring concrete that would allow the forms to strengthen as they were created so that they could support themselves.

“Because the formwork is made of fabric, we must cast each column in one continuous pour,” explained Arbel.
“We worked with our structural engineers on a concrete formula which has the concrete curing throughout the duration of one very slow, durational pour, such that the curing rate follows along behind the pour rate, and the piece gains structural integrity at the stem in progress and is thus able to support subsequent concrete entering the system.”

Placed throughout the elongated house, the larger trees will shelter the home’s biggest rooms including its dining and seating area and the gym, while the smaller trees will be in smaller rooms like the tv room, bathroom and a bedroom.

The rooms will be enclosed by traditionally constructed walls with curved forms projecting from them into the surrounding landscape.

Photography is by Fahim Kassam.

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