Additionally, the angled wooden louvers are placed to further control the line of sight from inside and outside, thus ensuring an open, yet private, living environment. The building's form helps block the harsh sunlight of summer and takes in the warm sunlight of winter. also, the strong summer light's effect can be further adjusted through a Japanese paper pleated screen.

The eaves and inner walls of the house are covered with cedar, which gives the interior a warm appearance. when the sun goes down, the artificial light that comes from the interior illuminates the outer walls, made of cedar boards, and the louvers, which are built in cypress.