Passive House with Sundial / Kikuma Watanabe

Passive House with Sundial / Kikuma Watanabe - WindowsPassive House with Sundial / Kikuma Watanabe - Image 3 of 18Passive House with Sundial / Kikuma Watanabe - Windows, Beam, HandrailPassive House with Sundial / Kikuma Watanabe - Image 5 of 18Passive House with Sundial / Kikuma Watanabe - More Images+ 13

Heguri, Japan
More SpecsLess Specs
Passive House with Sundial / Kikuma Watanabe - Image 3 of 18
© Kikuma Watanabe

Text description provided by the architects. Home between Earth and Sky- Passive house with Sundial.

This home in Japan is passive house in where a sundial is set. By adapting the passive system the internal spaces support a comfortable environment where in summer it is naturally cool and in the winter it is warm. This ecological technology aids this passive system using the sun and the wind for an effective air conditioner. With this built-in sundial, the time can be told through the line drawn by top light. Furthermore the sundial enables internal space of this house to remind us existence of Father Sky.

Passive House with Sundial / Kikuma Watanabe - Image 18 of 18
Model

The process of constructing this feature went through three steps:

1. Designing the prototype of the passive house with sundial
At first we must plan the passive house as direct gain system. The window is based on the south side where the eaves shut off the intense sunlight in summer while receives it in winter. Meanwhile insulation has been installed in the walls. For setting the sundial, the roof is inclined at the latitude of the site [34.60°]. Under the roof we put the half cylinder inclined at the same angle and above the center of the cylinder, the top light is set where the time can be told through the position of the line

Passive House with Sundial / Kikuma Watanabe - Image 5 of 18
© Kikuma Watanabe

2. Adapting to the site environment
The site has an irregular shape, and as a result of putting the sundial facing south, there are a diverse number of views to the gardens. The site has a gentle slope from west to east, and the floor level of kitchen, atelier, half area of living room is at -1000mm from ground level. The main opening has been oriented to the east where it faces onto the ponds, hills and historic scenery in the area.

Passive House with Sundial / Kikuma Watanabe - Windows
© Kikuma Watanabe

3. Planning by orientation
The plan of passive house with sundial is divided into two areas. The brighter of the two contains the living and kitchen. Meanwhile, the other is north facing area in where the atelier is and between the two, small spaces such as the bath and toilet are set along the east and west axis.

Passive House with Sundial / Kikuma Watanabe - Image 17 of 18
Detail

The sundial tells us not only time but also existence of cosmos. Adaptation to the site reminds us the gentle of earth. We live on the Mother Earth. We live under the Father Sky. We live in the Universe. In this home we can feel that we live in the Universe. That is reason why we name this house“Home between Earth and Sky.’

Passive House with Sundial / Kikuma Watanabe - Windows, Beam, Handrail
© Kikuma Watanabe

Project gallery

See allShow less
About this office
Cite: "Passive House with Sundial / Kikuma Watanabe" 26 Aug 2015. ArchDaily. Accessed . <https://www.archdaily.com/772511/passive-house-with-sundial-kikuma-watanabe> ISSN 0719-8884

You've started following your first account!

Did you know?

You'll now receive updates based on what you follow! Personalize your stream and start following your favorite authors, offices and users.