14.4.7. Green building material/product selection criteria

Resource Efficiency can be accomplished by utilizing materials that meet the following criteria:

• Recycled Content: Products with identifiable recycled content, including post-industrial content with a preference for post-consumer content.
• Natural, plentiful or renewable: Materials harvested from sustainably managed sources and preferably have an independent certification (e.g., certified wood) and are certified by an independent third party.
• Resource efficient manufacturing process: Products manufactured with resource-efficient processes including reducing energy consumption, minimizing waste (recycled, recyclable and or source reduced product packaging), and reducing greenhouse gases.
• Locally available: Building materials, components, and systems found locally or regionally saving energy and resources in transportation to the project site.
• Reusable or recyclable: Select materials that can be easily dismantled and reused or recycled at the end of their useful life.
• Recycled or recyclable product packaging: Products enclosed in recycled content or recyclable packaging.
• Durable: Materials that are longer lasting or are comparable to conventional products with long life expectancies.

Resource efficiency in green building focuses on minimizing the environmental impact of materials used. This includes using products with recycled content, particularly post-consumer items, which help reduce waste. Additionally, sourcing materials that are natural, renewable, and certified ensures sustainability. Efficient production processes are crucial, aiming to lower energy use and greenhouse gas emissions. Locally sourced materials save on transportation emissions, while reusable and recyclable materials reduce waste at the end of their lifecycle. Durability is also a key factor, indicating that materials should last long to reduce the frequency of replacements.

Imagine building a house using bricks made from recycled materials instead of new, which helps save the environment and reduces landfill waste. By also choosing local wood that comes from sustainably managed forests, the builder supports local businesses and minimizes transportation emissions. Just like bringing your reusable grocery bags to the store helps reduce plastic waste, selecting building materials thoughtfully contributes to a healthier planet.

Indoor Air Quality (IAQ) is enhanced by utilizing materials that meet the following criteria:

• Low or non-toxic: Materials that emit few or no carcinogens, reproductive toxicants, or irritants as demonstrated by the manufacturer through appropriate testing.
• Minimal chemical emissions: Products that have minimal emissions of Volatile Organic Compounds (VOCs). Products that also maximize resource and energy efficiency while reducing chemical emissions.
• Low-VOC assembly: Materials installed with minimal VOC-producing compounds, or no-VOC mechanical attachment methods and minimal hazards.
• Moisture-resistant: Products and systems that resist moisture or inhibit the growth of biological contaminants in buildings.
• Healthfully maintained: Materials, components, and systems that require only simple, non-toxic, or low-VOC methods of cleaning.
• Systems or equipment: Products that promote healthy IAQ by identifying indoor air pollutants or enhancing the air quality.

Enhancing indoor air quality (IAQ) is crucial for health and comfort in green buildings. Low or non-toxic materials minimize exposure to harmful chemicals and irritants. Limiting Volatile Organic Compounds (VOCs) in products helps prevent indoor pollution, promoting a healthier environment. Installation methods that use low-VOC compounds ensure that the air quality remains high. Moisture-resistant materials prevent mold growth, which can negatively impact health. The choice of cleaning materials is also essential; opting for non-toxic, low-VOC cleaning solutions contributes to better air quality. Overall, selecting materials that actively promote healthy air is vital for occupant well-being.

Consider living in a home painted with low-VOC paint compared to a conventional one. In the low-VOC home, you would breathe easy, knowing there are fewer harmful chemicals lingering in the air. It’s like choosing to breathe fresh air in a forest rather than smog in a city; the quality of what surrounds you can make a significant difference to your health and comfort.

Energy Efficiency can be maximized by utilizing materials and systems that meet the following criteria:

• Materials, components, and systems that help reduce energy consumption in buildings and facilities.

Maximizing energy efficiency involves selecting materials and systems designed to minimize energy use. This can include insulation materials that reduce heat loss or gain, energy-efficient windows that limit temperature fluctuations, and systems that optimize energy usage, such as smart thermostats. Buildings that use energy-efficient materials significantly lower utility bills and reduce greenhouse gas emissions, contributing to sustainability goals. Overall, energy efficiency is a key component of green building, ensuring that the least amount of energy is used to maintain comfort and functionality.

Think about how much energy your old refrigerator consumes compared to a new, energy-efficient model. The old fridge might run continuously and inflate your electric bill. In contrast, the energy-efficient model uses advanced technology to maintain the same cooling effect while consuming less power, much like how a well-insulated home retains heat in winter without cranking up the heater—making it a win for both your wallet and the environment.

Water Conservation can be obtained by utilizing materials and systems that meet the following criteria:

Water conservation in green buildings focuses on minimizing water usage through effective materials and systems. This can include using low-flow fixtures, rainwater harvesting systems, and drought-resistant landscaping. Technologies such as greywater recycling systems also contribute by reusing water from sinks and showers for irrigation. By conserving water, buildings reduce their environmental footprint and ensure sustainability, which is crucial in areas facing water scarcity.

Imagine the difference between a traditional lawn that requires constant watering versus a xeriscaped garden that thrives on minimal rainfall. Just like choosing plants that need less water saves resources, using water-efficient plumbing fixtures in a home can drastically cut down on water bills while being environmentally friendly. This approach not only helps save water but also nurtures the local ecosystem.

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