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.
- Presentations
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

2013

Hult, Erin L, Max H Sherman, and Iain S Walker."Blower-door techniques for measuring interzonal leakage."Thermal Performance of the Exterior Envelopes of Whole Buildings XII International Conference (2013).

Walker, Iain S, Max H Sherman, Jeffrey Joh, and Wanyu R Chan."Applying Large Datasets to Developing a Better Understanding of Air Leakage Measurement in Homes."International Journal of Ventilation 11.4 (2013) 323-338.

Walker, Iain S, Darryl J Dickerhoff, David Faulkner, and William J. N Turner."System Effects of High Efficiency Filters in Homes."ASHRAE Annual Conference (2013).

Walker, Iain S, and Max H Sherman."Effect of Ventilation Strategies on Residential Ozone Levels."Building and Environment 59 (2013) 456–465. DOI

Logue, Jennifer M, Max H Sherman, Iain S Walker, and Brett C Singer."Energy Impacts of Envelope Tightening and Mechanical Ventilation for the U.S. Residential Sector."Energy and Building 65 (2013) 281-291. DOI

Walker, Iain S, Darryl J Dickerhoff, David Faulkner, and William J. N Turner."Energy Implications of In-‐Line Filtration in California." (2013).

Sherman, Max H, Iain S Walker, and Melissa M Lunden."Uncertainties in Air Exchange using Continuous-Injection, Long-Term Sampling Tracer-Gas Methods." (2013).

2012

Turner, William J. N, and Iain S Walker."Advanced Controls and Sustainable Systems for Residential Ventilation." (2012).

Walker, Iain S, Darryl J Dickerhoff, David Faulkner, and William J. N Turner."Energy Implications of In-Line Filtration in California Homes."ASHRAE Transactions 19.2 (2012) 99-417.

Stratton, J Chris, William J. N Turner, Craig P Wray, and Iain S Walker."Measuring Residential Ventilation System Airflows: Part 1 – Laboratory Evaluation of Airflow Meter Devices." (2012).

Less, Brennan, Jeremy Fisher, and Iain S Walker."Deep Energy Retrofits—Eleven California Case Studies." (2012).

Logue, Jennifer M, William J. N Turner, Iain S Walker, and Brett C Singer."Evaluation of an Incremental Ventilation Energy Model for Estimating Impacts of Air Sealing and Mechanical Ventilation." (2012).

Sherman, Max H, and Iain S Walker."Philosophy and Approaches for Airtightness Requirements in the USA."International Airtightness Workshop (2012).

Stratton, J Chris, and Iain S Walker."Health and Safety Guide for Home Performance Contractors." (2012).

Walker, Iain S, Max H Sherman, and Darryl J Dickerhoff."Development of a Residential Integrated Ventilation Controller." (2012).

Stratton, J Chris, Iain S Walker, and Craig P Wray."Measuring Residential Ventilation System Airflows: Part 2 - Field Evaluation of Airflow Meter Devices and System Flow Verification." (2012).

2011

Walker, Iain S, and Darryl J Dickerhoff."Development of a Residential Integrated Ventilation Controller." (2011).

Mortensen, Dorthe Kragsig, Iain S Walker, and Max H Sherman."Optimization of Occupancy Based Demand Controlled Ventilation in Residences."International Journal of Ventilation 10.1 (2011) 49-60.

Sherman, Max H, Dorthe Kragsig Mortensen, and Iain S Walker."Derivation of Equivalent Continuous Dilution for Cyclic, Unsteady Driving Forces."International Journal of Heat and Mass Transfer 54.11-12 (2011) 2696-2702.

Sherman, Max H, and Iain S Walker."Meeting Residential Ventilation Standards Through Dynamic Control of Ventilation Systems."Energy and Buildings 43.8 (2011) 1904-1912.

Mortensen, Dorthe Kragsig, Iain S Walker, and Max H Sherman."Energy and air quality implications of passive stack ventilation in residential buildings."ACEEE 16th Biennial Summer Study (2011).

Sherman, Max H, Iain S Walker, and Jennifer M Logue."Equivalence in Ventilation and Indoor Air Quality."HVAC&R Research (2011).

2010

Walker, Iain S, Mile Lubliner, Darryl J Dickerhoff, and William W Delp."Air Leakage of Furnaces and Air Handlers."2010 ACEEE Summer Study on Energy Efficiency in Buildings: The Climate for Efficiency is Now (2010).

Sherman, Max H, and Iain S Walker."Does Mixing Make Residential Ventilation More Effective?."2010 ACEEE Summer Study on Energy Efficiency in Buildings (2010).

Mortensen, Dorthe Kragsig, Max H Sherman, and Iain S Walker."IAQ Based Design of an Efficient DCV System."10th REHVA World Congress (2010).