Two-way
year : 2024
location : new england
Köppen climate classification : Dfa
‘Two-way’ employs a simple massing where each cyclic behavior pattern of occupants and the micro-macro climate are aligned to form a positive physiological and psychological sync. The building’s geometry and high-capacity materials maximize the utilization of ambient resources, providing comfort and vitality to occupants’ everyday lives. Using accumulated local site weather data, the level of occupants’ heat and wind stress, and the date of transition from the ‘shade preferred’ to ‘solar gain needed’ are identified to deduce massing orientations and the optimal length of the overhang. Here, environmental control devices are elevated to a spatial concept, rather than a technical appendix, forming an intermediate zone between interior and exterior that extends activities and expands comfort level.
Two rectangular bars are stacked and rotated 90 degrees. The south-facing lower bar, hosting daytime programs, maximizes passive solar direct gain during the heating season and receives predominant wind during the cooling season. Overhang length is calculated to block sunlight until the strong heat stress is removed and brings sunlight deep into the living area during cold stress is present. The east-facing upper bar, hosting nocturnal programs, receives ample morning sun that preheats the space early in the morning and contributes to occupants’ physiological and psychological wellness. Massive inner lining with high SHGC glazing is used at the south-facing lower bar for its high capacity and low diffusivity. Energy stored in the concrete floor and solid wood wall will continuously climatize the lower living space through both convective and radiative means, and heat the rooms at the upper level through convective means for an extended period. The finish materials of the upper volume have low effusivity with low-e coating glazing for quick heat response and a warmer ‘feel’ under the feet for occupants’ comfort.
The simplicity of the massing and its structural layout accommodates the complex nature of user behaviors. A simplified structure with double corridors allows the open bay to turn into an enclosed room or multiple programs. Strategic stair location allows the house to turn into a duplex without major structural modifications. The adaptability and flexibility of the building increase its longevity, hence contributing to reducing the global carbon footprint.
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