The japanese bath is a space that is defined by light, shadow and the damp of the hot water.

The design is made of two disconnected elements. The protective structure and the bathtub. The main structure is made out of Nuki-joints, a japanese technique consisting of penetrating an element of wood with another one. This creates a self-reliant construction allowing us to not use cross-bracing. By avoiding cross bracing we not only save wood but preserve a clear horizontal and vertical estetic. The open grid is filled with bamboo panels, to create a sheltered feeling of light and shadow. The panels are hand-braided with hemp yarn using a traditional lashing technique used for bamboo fences in Indonesia. This allows them to stay flexible yet extremely strong.

The roof is a simple bypass construction, bringing light into the Onsen from above. While the colour of the bamboo sticks out from the other designs, the wooden structure is connected to them by the colour of the tar-treated wood and its shape. By using this japanese technique, the Onsen shows other techniques of wood construction in a country that has been using wood for centuries.