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Time Indoors


People in the U.S. spend about 90% of their time indoors.

Source: Environmental Protection Agency (1987). The Total Exposure Assessment Methodology (TEAM) Study.opens in new window


Related Topics


Guiding Principles for Sustainable Federal Buildings

The Guiding Principles for Sustainable Federal Buildings and Associated Instructions are a set of sustainable principles for integrated design, energy performance, water conservation, indoor environmental quality, materials, and resilience aimed at helping Federal agencies and organizations:

  • Reduce the total ownership cost of facilities
  • Improve energy efficiency and water conservation
  • Provide safe, healthy, and productive built environments
  • Promote sustainable environmental stewardship

Guiding Principles for Sustainable Federal Buildings and Associated Instructions

Occupant Satisfaction

A primary goal of sustainable design is to maximize occupant comforst and satisfaction, while minimizing environmental impact and costs. Comforst and satisfaction are important for many reasons, not least of which is that they correlate positively with personal and team performance. The greater the satisfaction, the higher the productivity and creativity of an organization. It has also been demonstrated that occupant satisfaction impacts staff rentention.

Views (to the Outside)

Building occupants with access to outside views have an increased sense of well-being. Keeping employees happy and healthy is good for business, as happy employees show higher productivity and increased job satisfaction, resulting in less employee turnover. In order to provide equitable access to views, it is recommended that private offices are located toward the core of the space and that low workstation panels are installed to allow for maximum daylight penetration. Use glass walls and partitions to enable views out from interior spaces.

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Did You Know?

Between 1950 and 2000, the U.S. population nearly doubled. However, in that same period, public demand for water more than tripled. Americans now use an average of 100 gallons of water each day—enough to fill 1,600 drinking glasses. Source: EPA WaterSenseopens in new window

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Case Study

The Workplace Environment as a Catalyst for Social Change

The Pit - Lounge

We know workplace design can influence functional behaviors, but can it be a catalyst for social change? Can organizations use the environment to improve the sense of community, increase morale, reduce stress, and develop cross group relationships?

View Case Study