Sustainability Report
Embodied carbon
Sinfonía Verde implemented several design strategies to minimize embodied carbon:
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Minimized Footprint: The house was scaled to a minimum footprint to avoid removing existing vegetation, which helps preserve the embodied carbon stored in the natural environment.
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Responsibly Sourced Materials: The project utilized "responsibly sourced materials, such as teak and cork," indicating a preference for materials with lower environmental impact and sustainable origins. This implies a consideration for the carbon footprint associated with material extraction and processing.
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Prefabricated Steel Components: "Prefabricated steel components were prepared in advance" and assembled on-site. Prefabrication can lead to more efficient material use and less waste during construction, thereby reducing embodied carbon. While steel production itself is carbon-intensive, the efficiency of prefabrication and the overall minimal footprint likely contributed to a lower relative impact.
Operational Emissions / Energy
Sinfonía Verde's operational emissions and energy strategies are centered on complete off-grid self-sufficiency and passive design:
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Self-Sufficiency: The home is "entirely self-sufficient" for its power needs.
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Renewable Energy Generation:
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Photovoltaic Array: Generates electricity from solar power.
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Hydro Turbine: Harnesses energy from a nearby stream, which also supplies drinking water.
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Passive Cooling and Ventilation: In a region of extreme heat and humidity, the design actively avoids mechanical cooling. This is achieved by:
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Raising the home off the ground: This allows air to circulate underneath, preventing heat buildup from the ground.
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Louvered Openings: These allow fresh air to permeate the home, encouraging natural cross-ventilation.
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Reduced Heat Absorption: The white insulated roof helps keep the house cooler by reflecting sunlight and reducing heat absorption, directly lowering cooling loads.
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Energy-Efficient Lighting: The use of "energy-efficient lighting" further minimizes electricity consumption.
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Water Supply: The nearby stream not only powers the hydro turbine but also supplies the home's drinking water, eliminating the need for external water supply infrastructure and its associated energy use.
Service and maintenance emissions
Several important factors contribute to reducing service and maintenance emissions through durable and eco-friendly design choices. For instance, the roof incorporates fiber cement boards and a resilient membrane, which are designed for longevity and require minimal maintenance. Additionally, the use of teak and cork indicates a preference for natural materials that typically need less upkeep compared to synthetic options. Furthermore, the design emphasizes resilience to environmental factors, featuring elements that can endure high precipitation, temperature fluctuations, salt exposure, and wildlife threats. This focus on durability helps decrease the frequency of repairs. Lastly, the home operates off-grid for power and water, which reduces dependence on external infrastructure. This self-sufficiency not only results in lower maintenance needs but also minimizes service-related emissions.
Afterlife
While adaptive reuse wasn't a primary design consideration, the structure's inherent flexibility allows for potential future adaptations. The open plan, which combines living, kitchen, and lab-library functions, along with its minimalist footprint and elevated platform, accommodates different uses through interior reconfiguration, although this wasn't the original intention. The primary flexibility mentioned is for the current users to "observe wildlife" from shaded terraces and the central courtyard.
The design incorporates elements that could aid future disassembly and material recovery. Prefabricated steel components, assembled by hand, lend themselves to easier disassembly, and steel is highly recyclable. Exposed or treated wood, such as teak, cork, slatted screens, and the wooden ceiling, can be recovered and reused or recycled. The house's minimal impact, due to being raised on stilts, suggests that removal will also be less disruptive, preserving the site's natural state.