Green buildings incorporate environmentally responsible features in their design, construction, operation, and maintenance. This approach minimizes negative impacts on the environment and occupant health, while delivering cost efficiency, compliance with regulations, and higher resale value.

Using low-emitting materials and natural light, green buildings promote a healthy indoor environment. They also minimize water waste and strain on shared water supplies.

Energy Efficiency

Green buildings are built with energy efficiency in mind. This starts during the design process with the use of energy efficient appliances and materials that reduce the need to cool or heat a structure. It also includes a system that uses solar power or another renewable source to help lower energy costs.

Sustainable construction practices help protect the environment and improve indoor air quality. They can also increase a building’s marketability, as more homeowners and tenants are prioritizing sustainability features. Certifications like LEED and WELL have become the global standard for green buildings.

Many cities have enacted model codes that require builders to incorporate green elements into their projects. These include requirements for things like low water usage showerheads and toilets, natural ventilation, and avoiding toxic materials. Some even offer rebate incentive programs to encourage these green building standards. Palo Alto is a leading city in California that has pioneered these advanced ordinances, which go beyond the state’s CALGreen standards.

Indoor Air Quality

Green building practices focus on creating healthier and more productive environments for occupants of buildings while saving energy, water and resources. One of the main goals of green building is to create a healthy indoor environment by reducing indoor air pollutants. This can be accomplished through the use of nontoxic materials that do not off-gas chemicals, adequate ventilation rates and proper lighting and temperature control.

Many diseases, such as humidifier fever, can be traced to microorganisms growing in home ventilation systems and household appliances like dryers. Combustion-generated pollutants, such as carbon monoxide, nitrogen oxides and tobacco smoke, are also a source of indoor pollution.

Green buildings are designed to eliminate the sources of these contaminants by either removing them from the building or by controlling their emissions. Green builders are also focused on reducing embodied carbon by selecting building materials that have lower carbon content and avoiding transportation emissions when purchasing materials. This can be accomplished by sourcing materials with recycled content and using fewer energy-consuming appliances.

Materials

Green building materials are made with sustainable resources and have low embodied energy, environmental impact, and durability. They are also recyclable and biodegradable, extending their life cycle and minimizing waste. Choosing durable and long-lasting materials reduces maintenance costs, while high efficiency and outstanding insulating properties lower operational costs over time.

Choosing the right materials is an essential part of any green building project. To choose the best eco-friendly options, research manufacturers’ products, including MSDS, indoor air quality test data, recycled content, and energy performance information. Also, check for certifications like LEED and BREEAM.

Some common green building materials include reclaimed wood, which saves on deforestation and adds character; bamboo, a fast-growing alternative to lumber; ferrock concrete, made from reclaimed steel and industrial byproducts; and hempcrete, an insulated concrete form that reduces construction and energy costs. New alternatives such as plant-based foams, which have a lower carbon footprint than traditional insulation; and cellulose, an alternative to fiberglass that is harvested without cutting down trees, are also available.

Sustainability

Green buildings focus on reducing energy and water consumption, minimizing waste and preserving biodiversity. They also incorporate the use of non-toxic materials and encourage re-using or recycling existing building supplies.

Many states and cities have adopted green building policy platforms that promote resource efficiency, sustainable development, and local ecology. Some even offer financial incentives, like tax credits for homeowners who choose greener construction options.

While green buildings can be more expensive upfront, they have lower long-term costs through reduced utility bills and maintenance expenses. They are also more likely to have higher resale value, making them attractive to environmentally conscious home buyers and tenants.

Some green buildings use solar power for energy and water heating, while others take advantage of the sun’s natural light through strategies like daylighting to reduce electric lighting needs. These buildings are designed to be self-sustaining and require minimal upkeep, so that time, money, and resources can be invested in other environmental initiatives.