Environmental consideration of Japan Pavilion	Japanese architectural culture
	Total building weight reduced with steel construction and lightweight membrane systems Reduced environmental impact (Minimized ground alteration, fewer trucks used, easier dismantling) Lightweight floating structure used atop soft ground (Construction method without piles)	Lightweight wooden construction Tradition of "joining technology" rather than "stacking technology"
	World's first pillow membrane with built-in amorphous solar cells External membrane itself integrated with new energy mechanism generating 20–30 kW generation (Experiment in solar power use) Achievement of new design approach	High-level use of natural energy (Tree leaves produce energy from sunlight)
	Reduces environmental burden by 6% through circulation of air, water, and light Modern integration of structure and utility systems (Proposed model for urban architecture) Creation of comfort through connections with cool tubes under floor, reducing temperature by about 3°C	Open, quintessentially Japanese spaces, ventilation via attic and under-floor spaces
	Heat dissipation/purifying effect from photocatalysts	Uchimizu (water sprinkling by hands)
	Cooling with use of "cool mist"	Transpiration cooling action
	Lower environmental burden and sensory comfort with semi-openness, good ventilation, and use of water	Principle of Japanese-style, summer-focused living spaces that emphasize ventilation
	Use of LED, organic EL lighting General use of ecological, energy-saving devices (toilets, EcoCuteheat pumps, etc.) Autonomous power generation with hybrid windmills Contamination control with natto bacilli in water basins	Ingenuity in living environment

Attempts have been made to decrease the pavilion's environmental impact by utilizing the actions of natural energy including sunlight, rainwater, and air in an environmental circulation system fully integrated into the Pavilion's structure (supporting columns).

Ecotube Construction Diagram

Page Top