Center for the Built Environment: Research on Indoor Environmental Quality (IEQ)

CBE has developed methods to measure the performance of occupied buildings in terms of occupant comfort and productivity, energy efficiency, and operations. For example, CBE's Web-based Occupant IEQ Survey quantifies how a building is performing from the perspective of its occupants. This provides immediate feedback for building owners and operators, and assists architects, engineers and builders in the development of future buildings. We have used this tool for studies of LEED-rated and other green buildings, thermal comfort, acoustical quality, and other research topics.

IEQ Research Topics

CBE projects related to IEQ in buildings include:

Advanced Human Thermal Comfort Model
A tool for predicting human comfort resulting from HVAC, building and facade design decisions.
Acoustical Analysis in Office Environments Using POE Surveys
CBE mined Occupant IEQ Survey data to investigate occupant satisfaction in a variety of office configurations.
Acoustical Field Study in a UFAD Building
Verifying acoustical performance of as-built partitions and acoustical construction.
Occupant IEQ Survey and Building Benchmarking Database
Occupant surveys are an invaluable source of information regarding occupant satisfaction and workplace effectiveness.
Occupant Satisfaction with IEQ in Green and LEED-Certified Buildings
The LEED system is transforming the building industry, but little is known about occupant satisfaction in these buildings.
Speech Privacy in Office Environments
Validation of a method to predict speech privacy in a diversity of office environments.
Using Task Ambient Conditioning Systems to Improve Comfort and Energy Performance
New space conditioning systems provide individual occupant control and may increase comfort and productivity while reducing overall building energy.
The Impact of Team Space Design on Collaboration
Assessing individual and group worker effectiveness in today’s new workplace paradigm.
Thermal Comfort in Non-Uniform Spaces
Using the Advanced Thermal Comfort Model to study comfort implications of emerging green building technologies.
The Impact of Ventilation on Productivity
Comparing worker productivity to physical conditions in the workplace environment.


Research Indoor Environmental Quality (IEQ) Advanced Human Comfort Model Acoustics POE Survey Acoustics in UFAD Buildings Occupant IEQ Survey Occupant IEQ and LEED Speech Privacy Task Ambient Conditioning Team Space Design Study Thermal Comfort in Non-Uniform Spaces Ventilation and Productivity HVAC Systems Envelope Systems Controls and Information Technology Publications Presentations	Research Area : Research on Indoor Environmental Quality (IEQ) Developing new methods to "take the pulse" of buildings in operation .
	CBE has developed methods to measure the performance of occupied buildings in terms of occupant comfort and productivity, energy efficiency, and operations. For example, CBE's Web-based Occupant IEQ Survey quantifies how a building is performing from the perspective of its occupants. This provides immediate feedback for building owners and operators, and assists architects, engineers and builders in the development of future buildings. We have used this tool for studies of LEED-rated and other green buildings, thermal comfort, acoustical quality, and other research topics. IEQ Research Topics CBE projects related to IEQ in buildings include: Advanced Human Thermal Comfort Model A tool for predicting human comfort resulting from HVAC, building and facade design decisions. Acoustical Analysis in Office Environments Using POE Surveys CBE mined Occupant IEQ Survey data to investigate occupant satisfaction in a variety of office configurations. Acoustical Field Study in a UFAD Building Verifying acoustical performance of as-built partitions and acoustical construction. Occupant IEQ Survey and Building Benchmarking Database Occupant surveys are an invaluable source of information regarding occupant satisfaction and workplace effectiveness. Occupant Satisfaction with IEQ in Green and LEED-Certified Buildings The LEED system is transforming the building industry, but little is known about occupant satisfaction in these buildings. Speech Privacy in Office Environments Validation of a method to predict speech privacy in a diversity of office environments. Using Task Ambient Conditioning Systems to Improve Comfort and Energy Performance New space conditioning systems provide individual occupant control and may increase comfort and productivity while reducing overall building energy. The Impact of Team Space Design on Collaboration Assessing individual and group worker effectiveness in today’s new workplace paradigm. Thermal Comfort in Non-Uniform Spaces Using the Advanced Thermal Comfort Model to study comfort implications of emerging green building technologies. The Impact of Ventilation on Productivity Comparing worker productivity to physical conditions in the workplace environment.	CBE conducted occupant surveys to evaluate the design of the Chesapeake Bay Foundation headquarters. CBE' Occupant IEQ Survey has been customized to serve numerous research projects. The Advanced Thermal Comfort Model is i highly developed tool used in IEQ research.
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Research on Indoor Environmental Quality (IEQ)

Developing new methods to "take the pulse" of buildings in operation .

IEQ Research Topics