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Kupono Hale
Kupono Hale
Maui County, HI, United States
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Other Projects by Hawaii Off-Grid Architecture & Engineering
Kupono Hale
Maui County, HI, United States
Type
STATUS
Built
YEAR
2024
SIZE
0 sqft - 1000 sqft
BUDGET
$500K - 1M
The concept behind Kupono Hale is to respond elegantly to its site and work with it to produce a unique form that will distinguish it from both its built surroundings while materially connecting with the nature around it. Kupono Hale is completely off-grid in both energy and water, with enough energy to intelligently support the dwelling and electric vehicles. The design incorporates both passive and active solar strategies, featuring photovoltaic (PV) panels, solar hot water systems, and strategic orientation to balance energy efficiency with stunning vistas.
The roof structure is made of glulam beams with locally sourced Cook Pine as the roof decking and interior ceiling. The roof has a parabolic curve that is derived from rotating the ridge beam to respond to the sun's path while allowing the rest of the dwelling to align with the view and prevailing winds. The walls are constructed of Insulated Composite Concrete Forms (ICCF) made from recycled styrofoam.
Natural ventilation is key to the home’s comfort, reducing the need for air conditioning. Aligned with prevailing winds, large openings and clerestory windows maximize airflow, ensuring a cool environment year-round. Additional design features, such as overhangs, diffuse natural light while preventing heat gain, creating a shaded, bright interior that minimizes issues like mold and moisture. These elements demonstrate how compact tropical homes can combine aesthetics and functionality with environmental responsiveness.
The home’s off-grid systems further highlight its sustainable approach. A rainwater catchment system collects and stores water in a 15,000-gallon tank, providing a reliable supply even in dry periods. The roof, spanning 1,600–1,700 square feet, is optimized for both rainwater collection and energy generation, with a 10,000-watt PV array capturing sunlight from early morning to late afternoon. Together with a polished concrete slab acting as a thermal mass and precisely calculated shadow angles, the design integrates passive and active solar strategies to achieve an efficient, self-sustaining, and comfortable living environment.
The roof structure is made of glulam beams with locally sourced Cook Pine as the roof decking and interior ceiling. The roof has a parabolic curve that is derived from rotating the ridge beam to respond to the sun's path while allowing the rest of the dwelling to align with the view and prevailing winds. The walls are constructed of Insulated Composite Concrete Forms (ICCF) made from recycled styrofoam.
Natural ventilation is key to the home’s comfort, reducing the need for air conditioning. Aligned with prevailing winds, large openings and clerestory windows maximize airflow, ensuring a cool environment year-round. Additional design features, such as overhangs, diffuse natural light while preventing heat gain, creating a shaded, bright interior that minimizes issues like mold and moisture. These elements demonstrate how compact tropical homes can combine aesthetics and functionality with environmental responsiveness.
The home’s off-grid systems further highlight its sustainable approach. A rainwater catchment system collects and stores water in a 15,000-gallon tank, providing a reliable supply even in dry periods. The roof, spanning 1,600–1,700 square feet, is optimized for both rainwater collection and energy generation, with a 10,000-watt PV array capturing sunlight from early morning to late afternoon. Together with a polished concrete slab acting as a thermal mass and precisely calculated shadow angles, the design integrates passive and active solar strategies to achieve an efficient, self-sustaining, and comfortable living environment.
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