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.

Publications

Publications By Research Area

1980

Sherman, Max H, and David T Grimsrud."The Measurement of Infiltration using Fan Pressurization and Weather Data."Proceedings of the First Air Infiltration Centre Conference (1980).

Weidt, John L, and Jenny Weidt."Air Leakage of Newly Installed Residential Windows." (1980).

Condon, Paul E, David T Grimsrud, Max H Sherman, and Ron C Kammerud."An Automated Controlled Flow Air Infiltration Measurement System."Building Air Change Rate and Infiltration Measurements, (Hunt/King/Trechsel Eds.) STP:719 (1980) 60-72.

Grimsrud, David T, Max H Sherman, John E Janssen, A. A Noel Pearman, and David T Harrje."An Intercomparison of Tracer Gases Used for Air Infiltration Measurements."ASHRAE Transactions 86.1 (1980) 258-267.

Bryan, Harvey J, and Robert D Clear."Calculating Interior Daylight Illumination with a Programmable Hand Calculator."Journal of the Illuminating Engineering Society 07/1981 (1980) 219-227.

Verderber, Rudolph R, and Oliver C Morse."Cost Effectiveness of Long Life Incandescent Lamps and Energy Buttons."Electrical Construction and Maintenance 80 (1980).

King, William J."High Performance Solar Control Windows, Final Report." (1980).

Rubinstein, Francis M, and Rudolph R Verderber."Lighting Controls: Survey of the Potential Market."Energy 8.6 (1980) 433-449.

Rubin, Michael D, Richard Creswick, and Stephen E Selkowitz."Transparent Heat Mirrors for Windows: Thermal Performance."5th National Passive Solar Conference (1980) 990-994.

1979

Bryan, Harvey J."A Simplified Procedure for Calculating the Effects of Daylight from Clear Skies."Illuminating Engineering Society Annual Technical Conference (1979).

Grimsrud, David T, Max H Sherman, Richard C Diamond, and Robert C Sonderegger."Air Leakage, Surface Pressures and Infiltration Rates in Houses."Proceedings of the Second International CIB, Symposium on Energy Conservation in the Built Environment (1979).

Sherman, Max H, David T Grimsrud, and Richard C Diamond."Infiltration-Pressurization Correlations: Surface Pressures and Terrain Effects."ASHRAE Trans (1979) pp. 458-479;.

Haves, Philip."One Dimensional Representations of the Heat Flow Beneath a Building."US DOE Solar Energy Storage Options Conference (1979).

Blomsterberg, A.K, Max H Sherman, and David T Grimsrud."A Model Correlating Air Tightness and Air Infiltration in Houses."Proceedings of the ASHRAE-DOE Conference on Thermal Performance of Exterior Envelopes of Buildings SP 28 (1979).

Sherman, Max H, David T Grimsrud, and Robert C Sonderegger."The Low Pressure Leakage Function of a Building."Proceedings of the ASHRAE-DOE Conference on Thermal Performance of Exterior Envelopes of Buildings SP 28, (1979).

Akbari, Hashem, and Tom R Borgers."Free convective laminar flow within the trombe wall channel."Solar Energy 22.2 (1979) 165-174. DOI

Goldstein, David B, and Metin Lokmanhekim."A Simple Method for Computing the Dynamic Response of Passive Solar Buildings to Design Weather Conditions."Alternative Energy Sources II (1979).

Selkowitz, Stephen E, Michael D Rubin, and Richard Creswick."Average Transmittance Factors for Multiple Glazed Window Systems."4th National Passive Solar Conference (1979) 383-386.

Lampert, Carl M."Coatings for Enhanced Photothermal Energy Collection II: Non-Selective and Energy Control Films."Solar Energy Materials 2 (1979).

Selkowitz, Stephen E."Daylighting and Passive Solar Buildings."3rd National Passive Solar Conference (1979) 271-281.

Goldstein, David B, Metin Lokmanhekim, and Robert D Clear."Design Calculations for Passive Solar Buildings by a Programmable Hand Calculator." (1979).

Weidt, John L, Jenny Weidt, and Stephen E Selkowitz."Field Air Leakage of Newly Installed Residential Windows."ASHRAE Transactions 85.1 (1979) 149-159.

Grimsrud, David T, Max H Sherman, A.K Blomsterberg, and Arthur H Rosenfeld."Infiltration and Air- Leakage Comparisons: Conventional and Energy-Efficient Housing Designs."Proceedings of the International Conference on Energy Use Management (1979).

Goldstein, David B."Modeling Passive Solar Buildings with Hand Calculations."3rd National Passive Solar Conference (1979) 164-169.

Selkowitz, Stephen E, and Vladimir Bazjanac."Thermal Performance of Managed Window Systems."ASHRAE Transactions 85 (1979).