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  1. ArchDaily
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  5. Jun Yashiki & Associates
  6. 2011
  7. Concave Roof House No.2 / Jun Yashiki & Associates

Concave Roof House No.2 / Jun Yashiki & Associates

  • 01:00 - 29 October, 2014
Concave Roof House No.2 / Jun Yashiki & Associates
Concave Roof House No.2 / Jun Yashiki & Associates, © Hiroyuki Hirai
© Hiroyuki Hirai

© Hiroyuki Hirai © Hiroyuki Hirai © Hiroyuki Hirai © Hiroyuki Hirai + 12

© Hiroyuki Hirai
© Hiroyuki Hirai

Text description provided by the architects. This is a two-family residence in a residential area of low houses on a plain in Tokyo, Japan. The problems to be solved here are 1) how to protect privacy and to supply natural light, 2) how to provide flexibility for varying lifestyle, and 3) how to command a fine view in such a crowded area.

We proposed a "Concave Roof House". A series of Concave Roof Houses is a kind of attempt to make a courtyard form even in a small private house.

Detail
Detail

It has much possibilities for designing a todays private house in a temperate region. The external walls of the house have a small number of small ventilation windows to protect privacy in a residential area in Tokyo. The top of the 10m x 10m pyramidal roof is concave to make a roof terrace. The finishing materials of both the roof and exterior walls are the same black galvanised steel plates.

© Hiroyuki Hirai
© Hiroyuki Hirai

The roof is supported by four wooden truss wall girders framed in swastika form in order to make a 10m x 10m space with no column below.  Interior wooden window frames are painted in different colours at the projected corner.Both constantly varying natural light in the daytime and moon light in the night come through high windows that are made between the roof and the roof terrace floor.

Section
Section

The space with no column provides flexibility for varying lifestyle, and is articulated to smaller spaces by the four wall girders above framed in swastika form. The roof terrace commands a fine view around beyond the surrounding roofs.

© Hiroyuki Hirai
© Hiroyuki Hirai

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Jun Yashiki & Associates
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Cite: "Concave Roof House No.2 / Jun Yashiki & Associates" 29 Oct 2014. ArchDaily. Accessed . <https://www.archdaily.com/559048/concave-roof-house-no-2-jun-yashiki-and-associates/> ISSN 0719-8884