The Center for Sustainable Research (CSBR), in conjunction with the Lawrence Berkeley National Laboratory (LBNL), the Alliance to Save Energy and the U.S. Department of Energy, launched www.CommercialWindows.org – a website that provides information and performance data on the energy efficiency, interior environment, and technical considerations that influence commercial window design decisions.
According to LBNL research, it is estimated that windows are responsible for 39% of commercial heating energy use and 28% of commercial cooling energy use – almost 1.5% of all total U.S. energy consumed.
CommercialWindows.org features a number of comprehensive resources including a Façade Design Tool – an interactive, online tool that allows users to choose, early in the design process, various conditions for windows to rank and compare different performance outcomes. The site also features performance data, design guidance, information on window technologies, and case studies with examples of the various uses of high-performing glass and façade systems.
The Façade Design Tool allows designers and decision-makers to compare design strategies for orientation, glazing, window area, and shading – for offices and schools in hot, cold and mixed climates – without the need for detailed inputs. After choosing a location, building type, and orientation, the Tool’s input design parameters let users design a façade system and quickly get performance outcomes for energy, peak electric demand, carbon, daylight, glare, and thermal comfort. These performance outcomes help the decision-maker to understand the environmental and human comfort impacts of various design decisions early and to facilitate integrated design considerations during design development.
The Façade Design Tool’s simulated results were generated using COMFEN, a tool to be used early in the design process to model comparative designs to help determine the optimal window design. COMFEN uses a graphical user interface with an Energy Plus engine providing performance results. COMFEN can be downloaded from LBNL’s web site at: windows.lbl.gov/software. BD+C
Related Stories
Daylighting | May 30, 2017
Sun, sky brightness, and glow: Making the most of daylight [AIA course]
To some project teams, “daylighting” means using glass area to admit direct sunlight, period.
Security/Fire Protection | May 30, 2017
Security begins when you close the door [AIA course]
Selecting door and window systems for any building project demands a complete articulation of safety and security concerns.
Codes and Standards | May 30, 2017
Industry Groups move toward Unified Green Building Model Code in 2018
The effort involves combining ASHRAE's Standard 189.1 with the International Green Construction Code.
Codes and Standards | May 30, 2017
Florida preparing to adjust to new building elevation requirements
New floodplain maps and state code changes loom.
Codes and Standards | May 30, 2017
Heated debate over whether Calif.’s prevailing wage requirement stymies affordable housing
There’s disagreement around how much pay regulations add to cost of projects.
Reconstruction & Renovation | May 30, 2017
Achieving deep energy retrofits in historic and modern-era buildings [AIA course]
Success in retrofit projects requires an entirely different mindset than in new construction, writes Randolph Croxton, FAIA, LEED AP, President of Croxton Collaborative Architects.
Architects | May 26, 2017
Innovations in addressing homelessness
Parks departments and designers find new approaches to ameliorate homelessness.
Architects | May 26, 2017
BIG plans: Architecture isn’t Bjarke Ingels Group’s only growth path
Kai-Uwe Bergmann, the firm’s head of global business development, says engineering and urban planning are key opportunities. And how about that Hyperloop?
Museums | May 25, 2017
The museum as workspace
Many museum staff are resistant to the idea of open offices.
| May 24, 2017
Accelerate Live! talk: Applying machine learning to building design, Daniel Davis, WeWork
Daniel Davis offers a glimpse into the world at WeWork, and how his team is rethinking workplace design with the help of machine learning tools.