这是在日本雾岛的一个周末住宅。居住空间只占总面积的三分之一，其余的是多功能车库和储藏室。所以，这个房子就像一个建在大仓库里的小住宅。它的目的是将这种不寻常的区域平衡转化为其优势，并考虑可持续建筑的新解决方案。

This is a weekend house in Kirishima, Japan.The living space is only one-third of the total floor area and the multi-purpose garage and storage account for the rest. So, this house is like a small residence built in a large warehouse. It was intended to turn this unusual areal balance to its advantage and consider new solutions for a sustainable building.

在日本的传统住宅中，主要房间（如客厅、卧室）被非生活空间包围，如阳台和阁楼空间。这些非生活空间不仅是一个通道和储藏室，也是外部和生活空间之间的一个缓冲空间（空气空间）。例如，阳台被用来调节外部和内部之间的联系，根据季节和时间打开和关闭其配件。这是在没有机械性暖通空调系统存在的现代社会之前，日本传统住宅中融入的智慧。本项目旨在通过用被视为空气空间的非生活空间来稳定生活空间的热环境，在环境调整方面参考了传统的智慧。

In a Japanese traditional house, main rooms (e.g., living room, bedroom) were surrounded by non-living spaces such as veranda and attic space. These non-living spaces worked as not only a passage and storage but also a buffer space (air space) in between the outside and living spaces. For instance, a veranda was used to regulate a connection between the outside and inside by opening and closing its fittings in accordance with seasons and time. This is the wisdom incorporated into a traditional Japanese house cultivated before the modern era when no mechanical HVAC system exist. This project aimed to stabilize the thermal environment of the living space by surrounding it with non-living spaces regarded as air space, referring to the traditional wisdom in terms of environmental adjustment.

首先，根据客户的需求制定了五个基本方案，并使用计算机模拟测试了其中的室内环境。结果发现，空气空间的效果很好，但屋顶应采用保温措施，以防止过多的太阳辐射热。在此研究的基础上，居住空间的三面（南面、东面和西面）被非居住空间包围，北面和屋顶隔热，提高天花板高度以保证上方的空气空间，被决定为最终的构成。这是在环境调整方面传统和现代方法的结合。

First, five basic plans were made according to the client’s demand, and an indoor environment of those was tested using computer simulation. It was revealed that the air space worked well but thermal insulation should be used for the roof to prevent excessive solar radiation heat. Based on this study, the surrounding three sides (south, east, and west) of the living space by non-living spaces, insulating the north side and roof and raising the ceiling height assuring air space above were decided as the final composition. This is a combination of traditional and modern methods in terms of environmental adjustment.

在2021年9月至2022年2月建造的建筑中测量了实际的热环境。结果显示，空气空间（非居住空间）缓解了居住空间与外界的热量传递，日温差变得稳定，就像绝缘一样。特别是在冬季（12月），证实生活空间的温度保持在比室外温度高10摄氏度左右，无需加热。

An actual thermal environment was measured in the building constructed from September 2021 to February 2022. The results show that the air space (non-living space) mitigates heat transfer between the living space and outside, and the day temperature difference becomes stable like insulating. Especially in the winter (December), it was confirmed that the temperature of the living space was maintained about 10 degrees Celsius higher than the outdoor temperature without heating.

由钢梁（部分为木头）形成的高刚度水平隔膜设置在传统的木结构墙体上，胶合板椽子以500毫米的间隔排列，构成一个9米跨度的木质屋顶。在此基础上，次要的椽子被设置成长檐，用于通风和辐射热障。

The high rigidity horizontal diaphragm formed with steel beams (partly wood) is set on conventional wood-frame walls, and glulam rafters are arranged at 500mm intervals making a 9m span wooden roof. On top of that, secondary rafters making long eaves are set for ventilation and radiation heat barrier.

Yakisugi，即碳化雪松板，被用于外部覆层。Yakisugi是日本的传统技术，杉木板的表面被烧成约5毫米厚的炭化层，以提高板材的耐久性、耐候性和防火性。这种加工方式也使建筑外观具有特殊的氛围。Yakisugi是由参与这个项目的所有人手工制作的。

Yakisugi, the carbonized cedar board, was used for the exterior cladding. Yakisugi is the Japanese traditional technique, and the surface of the cedar board is burnt to make about a 5mm thick char layer to improve the durability, weather resistance, and fire resistance of the board. This processing also gives the building appearance a special atmosphere. Yakisugi was hand-made by everyone involved in this project.

Architects: EAL
Area : 165 m²
Year : 2021
Photographs :Shigeo Ogawa, Atsushi Takano
Manufacturers : Bunka Shutter, Imashioya Tategu, LIXIL　, Oakridge, Takara Standard, Tokuei co.ltd., Yamasa Mokuzai co.ltd.
Structural Engineering : Hafnium Architects
Contractor : IFOO Inc.
Structural Engineer : Hafnium Architects, Hiroshi Fukuyama
City : Kagoshima
Country : Japan