Green buildings are designed, constructed, renovated and operated with environmental sustainability in mind. Their aim is to have as little of an effect as possible on their surrounding community – from construction waste disposal through water usage and pollution issues to energy consumption.
Modern buildings also provide cost efficiency and occupant productivity benefits, future-proof against tightening regulations, and are more attractive to buyers, investors and tenants.
Energy Efficiency
Energy efficiency in green buildings helps reduce pollution and reliance on fossil fuels. Green buildings often utilize solar panels for on-site solar energy generation while employing design strategies like daylighting that maximize natural light for lighting and thermal control purposes.
Other energy-saving measures include limiting water usage through fixtures and pipes, controlling construction waste disposal, using eco-friendly materials in construction, and even producing biofuel from on-site biomass sources.
Implementing green practices during building construction and maintenance can yield substantial cost savings, faster payback periods, and increased asset values over time. Unfortunately, upfront costs associated with green building tend to be higher than with conventional facilities, and finding bank financing for them may prove more challenging than for more conventional structures. PNNL research supports the green building industry through efforts such as creating highly efficient solid-state lighting products, developing energy-saving building controls to lower electricity consumption, setting efficiency requirements for appliances, as well as setting appliance standards and efficiency regulations.
Water Efficiency
With only 3% of Earth’s freshwater being freshwater, green building strategies conserve this vital resource. Innovative technologies reduce usage and expense in large buildings; for instance, using low flow plumbing fixtures that use only 1.3 gallons per flush instead of 7 reduces expenses by over 80%; similarly reusing and recycling grey water (water that hasn’t been used in toilets) for landscape irrigation can further cut expenses by an astounding 88%!
Sustainable material selection reduces construction waste while supporting responsible supply chains. Furthermore, using zero waste materials helps minimize pollution on-site and foster better health for occupants.
Resilient building strategies such as backup power systems and flood-resistant materials help businesses reduce business interruption risks during climate events, further distinguishing themselves as leaders of operational excellence and corporate responsibility. Ecochain provides teams with simple tools that make adopting environmentally-friendly designs possible while meeting sustainability standards without adding complexity to their projects.
Materials
Green building is an ecological approach to construction that seeks to minimize its environmental impacts at every step, including design, materials selection, construction process, operation and end of life. Green buildings consider energy consumption (both embodied and operational), water consumption, toxic emissions from materials used in production as well as air pollution levels when planning their projects.
Green building materials often consist of materials that are renewable or recyclable; locally sourced and/or designed for end-of-life considerations. Green builders utilize an array of building materials including concrete, steel and wood – wood is one sustainable resource that can be replanted as harvest is completed while using bamboo as structural elements is another way of meeting green building criteria.
Some architects are turning to more environmentally-conscious building materials such as rammed earth, straw bales and bamboo to craft stunning structures while remaining eco-friendly. IBUKU in Tokyo’s recent bamboo project provides an example. Not only can these types of homes reduce heating and cooling needs while also cutting fossil fuel consumption with their reduced energy needs.
Indoor Air Quality
Green buildings are built and operated to maximize resource efficiency while mitigating their effects on both nature and humans. These structures utilize eco-friendly materials, reduce energy and water usage, decrease emissions and waste creation and offer healthier indoor environments for occupants.
Green building practices focus on minimizing impacts across all phases of the building life cycle – from site selection and design through construction, operation and renovation. These techniques have been practiced for millennia but more recently formalized through rating systems like EPA’s ENERGY STAR program, LEED certification, Green Globes or Passive House certification.
Green building standards such as environmental impact assessment requirements and benchmarking provide regulatory compliance, cost savings and an edge in the marketplace. Solutions like energy-efficient windows and doors, reduced water use, recycled building materials and lower VOC paints all help lower operating costs for these structures while creating healthier indoor environments which boost employee productivity while decreasing absenteeism rates; rooftop gardens help mitigate urban cooling needs, stormwater runoff and air pollution issues as well.