| Building Technology and Urban Systems

About Us +
Researchers in the Building Technology & Urban Systems Division (BTUS) at Lawrence Berkeley National Laboratory develop data and technologies that increase energy efficiency and improve the health, safety and comfort of building occupants, in the United States and worldwide.

We work closely with industry partners, academics and government officials to achieve these goals, and share our research widely
Research +
We are at the forefront of cutting-edge research that redefines building technology and explores all areas of urban systems.

We have been leaders for decades in developing energy-efficient windows, improving indoor air quality, coming up with new ideas to fix the nation's electricity grid, and so much more.

Visit our research areas at the right to find out more.
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Publications +
Enjoy presentations from Building Technology & Urban systems research experts on a wide variety of topics in the areas of building energy efficiency, the electricity grid and how it relates to buildings and much more.
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News
Tools & Guides +
Explore our tools, guidebooks and software and download for free.

We offer a variety of technologies designed to simulate and model real-world circumstances to assist in energy-saving programs and help building owners build better buildings. These tools can help calculate performance of building systems like windows and shades, help consumers and builders pick the best windows for a variety of applications and much more.

1992

Forest, Tom W, and Iain S Walker."Attic Ventilation Model."Proceedings ASHRAE/DOE/BTECC 5th Conf. on Thermal Performance of Exterior Envelopes of Buildings (1992) 399-408.

Wray, Craig P, Stephen Meyers, U Shamir, M. Nady A Saïd, and G.K Yuill and Associates Ltd."Evaluation of Algorithms for Analysis of Smoke Control Systems."ASHRAE Research Reports (1992).

Walker, Iain S."Pressure Coefficients on Sheltered Buildings."Air Infiltration Review 13 (1992).

Wray, Craig P, and Grenville K Yuill."Simulation and Description of the Performance of Radon Mitigation Systems."ASTM Symposium on Modeling of Indoor Air Quality and Exposure (1992).

1991

Diamond, Richard C, Joseph A McAllister, and Leo I Rainer."Multifamily Energy Audit for HUD-Insured Multifamily Properties."Document prepared for the Office of Multifamily Housing, U.S. Department of Housing and Urban Development (1991).

Papamichael, Konstantinos M, and Stephen E Selkowitz."A Computer-Based Building Design Support Environment."1st International Symposium on Building Systems Automation-Integration (1991).

Bauman, Fred S, David Faulkner, Edward A Arens, William J Fisk, Lucy P Johnston, Pleasant J McNeel, David Pih, and Hui Zhang."Air movement, comfort and ventilation in partitioned workstations."ASHRAE Transactions 98 Part 1 (1991) 756-780.

Wray, Craig P, and G.K Yuill and Associates Ltd."Building Materials as a Source of Radon: Computer Simulation of Indoor Radon Concentrations." (1991).

Wray, Craig P, and G.K Yuill and Associates Ltd."SMOKESIM: Computer-Aided Analysis of Smoke Control Systems: Multizone Airflow and Smoke Transport Simulation - Source Code Documentation."ASHRAE (1991).

Sherman, Max H, and Darryl J Dickerhoff."ACT2 Project Report: Ventilation and Air Tightness Measurements of the Sunset Building."ventilation, air tightness (1991).

Wray, Craig P."Computer Simulation of the Transport of Soil Gas, Indoor Air, and Atmospheric Air into Subslab Venting Systems."Report to the Canada Mortgage and Housing Corporation (1991).

Heerwagen, Judith H, J Loveland, and Richard C Diamond."Environmental Satisfaction, Coping, and Health Outcomes in the Office Habitat."Proceedings of the 1991 International Solar Energy Society Conference (1991).

Piette, Mary Ann, Jeffrey P Harris, Richard C Diamond, Bruce Nordman, Odon D Buen, and Bruce Cody."Evaluating Savings from Design Predictions through Measured Performance in New, Energy-Efficient Commercial Buildings."Proceedings of the 5th International Energy Program Evaluation Conference, (1991).

Forest, Tom W, and Iain S Walker."Field Study on Attic Ventilation and Moisture."Proceedings CANCAM '91, (1991).

Forest, Tom W, Iain S Walker, and Kerry Checkwitch."Moisture Accumulation in a Building Envelope - Final Report - The AHHRF 1989-1990 Heating Season."Report #80 (1991).

Wilson, David J, and Iain S Walker."Passive Ventilation to Maintain Indoor Air Quality."Report # 81 (1991).

Wray, Craig P, and G.K Yuill and Associates Ltd."Preliminary Investigation Concerning the Impact of Subslab Ventilation on Radon Entry Rate, Soil Temperature, and Energy Consumption, 1991." (1991).

Hitchcock, Robert J, William L Carroll, and Bruce E Birdsall."RESEM: Retrofit Energy Savings Estimation Model Reference Manual - Version 1.00." (1991).

Yuill, Grenville K, Marc R Jeanson, and Craig P Wray."Simulated Performance of Demand-Controlled Ventilation Systems using Carbon Dioxide as an Occupancy Indicator."ASHRAE Transactions 97.Part 2 (1991) 963-968.

Wilson, David J, and Iain S Walker."Wind Shelter Effects for a Row of Houses."Proceedings 12th AIVC Conference 1 (1991) 335-346.

1990

Wilson, David J, and Iain S Walker."Combining Air Infiltration and Exhaust Ventilation."Indoor Air '90, (1990) 467-472.

Wray, Craig P, and Grenville K Yuill."Development of Models to Characterize Soil Gas Flow and Radon Entry into Basements."5th International Conference on Indoor Air Quality and Climate 3 (1990) 537-542.

Papamichael, Konstantinos M."Modeling the Building-Design Process and Expertise." 96(2) (1990).

Harris, Jeffrey P, Richard C Diamond, Odon D Buen, A Hatcher, Bruce Nordman, and Mary Ann Piette."Energy Edge Impact Evaluation, Findings and Recommendations from the Phase One Evaluation."Prepared for the Bonneville Power Administration (1990).

Sherman, Max H."A Multi-Tracer System for Multizone Ventilation Measurements."Review of Scientific Instruments 61.9 (1990) 2457-2461.