Même – Experimental House

Même – Experimental House

30. 十一月 2012

Même – Experimental House
2011
Hokkaido

Client
LXIL JS Foundation

Architects
Kengo Kuma & Associates
Tokyo

Design Principal
Kengo Kuma

Project Architect
Takumi Saikawa

Structural Engineer
Yasushi Moribe (Showa Womden’s University)

MEP/FP Engineer
Bumpei Magori (Factor M / Institute of Industrial Science, the University of Tokyo)

Contractor
Takahashi Construction Co.,Ltd.

Membrane Constractor
Kyoritsu Industries Co., Ltd.

Visualization system for temperature and humidity 
Tomonari Yashiro Laboratory, Institute of Industrial Science, the University of Tokyo (collaboration)

Site Area
Approx. 185,000 ㎡

Building Area
79.50 ㎡

Total Floor Area
79.50 ㎡

Photos
Kengo Kuma & Associates

Living and dining area

Tell us about the basic concept for the project.

Même takes many ideas from a type of traditional Ainu home called a chise. [The Ainu are Hokkaido’s indigenous people.]  We call chise "grass houses" because they are covered entirely in kaya [grasses used for thatching] and sasa [bamboo grass], which provide insulation. We also call them "earth houses" because residents lay cattail mats directly on the earth, which they warm by keeping a fire constantly burning in the hearth. The absorption of this radiant heat from the earth is the basic principle of chise. Our design acheives the softness of a grass house through the membrane material used in the walls and ceiling. Soft as a stuffed animal, the structure sits directly on top of the earth. ["Même" is the name of the district where the house is located. It means "the same" in French and "place where springs well up“ in Ainu.]

Looking from the study to the bedroom

Does the actual house differ in any way from your original design? Tell us about any problems you encountered and how you solved them. 

In order to keep in heat, traditional chise are dark and closed off. I wondered if it would be possible to create a bright interior by using translucent walls and roofing.

We wrapped a frame built from locally-harvested larch in a membrane coated with polyester fluororesin, then covered the inside of the frame with removable glass fiber cloth. In between the two layers we stuffed transparent polyester insulation made from recycled plastic bottles. The basic concept behind this sectional composition was to create a convection current flowing between the outer and inner membranes that would maintain a comfortable interior environment.

This house made of membranes also open up the possibility of residents synchronizing their daily life with natural rythyms – of not using any artificial lights but instead rising with the sun and going to sleep when it gets dark. 

Exterior at night

How is this project different or similar to your past work?

Because this isn’t simply a house, but rather an experimental house, it had to include temperature and humidity sensors, and the windows and finishing materials had to be removeable. For example,  the insulated wooden window frames are attached to the exterior of the membrane. It’s a new method that allows for a range of window frames to be tested out while monitoring the living environment inside the house. Along the same lines, the glass fiber cloth inside is attached entirely with Magic Tape [similar to Velcro] to allow for a range of environmental experiments. 

Exterior at night

How does this project fit into current architectural trends?

Rather than the static environmental engineering of the twentieth century, which focused exclusively on heat transmission coefficients and attained insulation simply by adjusting the thickness of the insulating material, we were aiming for a more active type of environmental engineering. The use of radiant heat from the floor is one part of that. It’s possible to turn off the floor heating system in winter and live in the house with no heating at all for a period of several days. Instead of closing off the house to keep out the cold, I wanted to design a light environment that felt similar to being outside on an open field bathed in sunlight.  

Floor plan, sectional drawing, elevation plan
Sectional detail
Sectional detail

Email Interview by Yuna Yagi

Même – Experimental House
2011
Hokkaido

Client
LXIL JS Foundation

Architects
Kengo Kuma & Associates
Tokyo

Design Principal
Kengo Kuma

Project Architect
Takumi Saikawa

Structural Engineer
Yasushi Moribe (Showa Womden’s University)

MEP/FP Engineer
Bumpei Magori (Factor M / Institute of Industrial Science, the University of Tokyo)

Contractor
Takahashi Construction Co.,Ltd.

Membrane Constractor
Kyoritsu Industries Co., Ltd.

Visualization system for temperature and humidity 
Tomonari Yashiro Laboratory, Institute of Industrial Science, the University of Tokyo (collaboration)

Site Area
Approx. 185,000 ㎡

Building Area
79.50 ㎡

Total Floor Area
79.50 ㎡

Photos
Kengo Kuma & Associates

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