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Green House Design of Hsu House Posted: 08 Apr 2011 04:09 PM PDT A collaboration of Dana Cupkova and EPIPHYTE Lab created a modern, unique, and green house design, the Hsu House. It is located on a lush, forested hill in Ithaca, New York. It was subjected to create an afforadble, environmentally friendly, and energy efficient. The house has eye-catching exterior and interior design, very unique and beautiful. The green home building adopted contemporary form with line patterned solar-responsive cement board siding that can transitions from dark to light according to its orientation. It has 3-story living space that act both as a spatial nexus and a natural ventilation stack. The interior consists of an interior south facing cast-in-place concrete heat sink mass wall that can store natural light. The interior walls are also designed very unique as there are some perforations, providing viewing accesses and better lighting distribution. They also form beautiful carving to the interior wall. To minimize the construction cost, several simple materials are used, such as bamboo, drywall, cement board, and concrete. As the green home design was intended to meet LEED Silver guidelines, several green products and sustainable technology are used, such as rainwater collection system, a high efficiency forced air heating with HEPA filtered heat recovery ventilation, a TPO high albedo membrane roofing system, Energy Star lighting and appliances, high efficiency plumbing fixtures, thermosymponic solar thermal heating device, and of course the natural ventilation. The green design was also done by using software to simulate the daylight and thermal effect, to create a energy efficient home with good insulation. The result is the using of at least six inches of open cell polyurethane insulation and another two inches of rigid polyisocynaurate underneath the cement board cladding.The 23 ft long , 14 ft high, 5.5-16 in width mass wall was developed to mitigate the energy flux and absorb the heat. To finish the wall, some guides were processed using CNC machine and either hand cut processes, to provide a wall on single three hour concrete pour. ref

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