House in Momiji-machi (Japanese/English)


House in Momiji-cho is a small one-story project in which we were involved from the timber harvesting stage. Cedar trees grown in the forests of Kuma Kogen, one of Ehime Prefecture’s leading timber (cedar and cypress) producing areas, were felled and dried naturally before being used for the main structural components and interior finishes of the house. While the house has an open floor plan, it is designed to be airtight and energy efficient during the winter season. As for the interior space, the plan was designed to have high moisture absorption performance to cope with the humid season. Cedar was used for the pillars, beams, and interior (flooring and ceilings). Cedar was also used for the frames of the wooden fittings, and the applicable post material was also used for the vertical frames. High quality materials are used for both structure and design. Considering the condition of the client’s elderly knees, all bedrooms are Japanese-style rooms, and soft cedar planks (30 mm thick) are used for flooring. The interior of the house is barrier-free. The main rooms overlook the garden and plantings, and the semi-outdoor space under the eaves was designed to provide a moderate connection between the indoor and outdoor spaces. The exterior walls are made of yakisugi(cedar), a material that has long been used along the Seto Inland Sea coast, and to contribute to CO2 reduction and forestry sustainability efforts, local cedar wood was used extensively for the exterior, interior, and structural materials. Because of these efforts, the houses have been adopted by the prefectural lumber subsidy program. While considering the distance from the production area to the construction site in terms of transportation distance and decarbonization efforts, the client, the architect, and the construction company in Kuma Kogen Town worked together to construct the house, placing importance on human connections from upstream to downstream. We intend to continue to build environmentally friendly houses in the future, while providing opportunities for close interaction between the client and the people involved in the forestry industry, carpenters, and other craftspeople.