Research activities to improve the performance of windows and other
fenestration products must address window systems issues as well as Glazing Materials
research. LBNL activities in the area of Advanced Systems include research at both the
product level and the building envelope and building systems levels.
Highly insulating windows - using non
structural center layers
- Lower cost solutions to more insulating three
layer glazing systems, with the potential to turn windows in U.S.
residential applications into net-energy gainers.
Highly Insulating Window Frames
collaboration with the Norwegian
University of Science and Technology, we are researching the potentials
for highly insulating window frames. Our initial
work examines European
frames with reported U-factors under 0.15 Btu/hr-ft2-F. Future research
aims to analyze these designs, verify these performance levels and
ensure that procedures used to calculate frame performance are accurate.
- Lightweight, opaque, high-performance
Dynamically shaded windows
- A residential window retrofitted with a "smart"
shade controller, that provides dynamic solar control
- Technology that enables dynamic control over
Integrated Window/Wall System
- A window and the surrounding wall area are
designed and built as a manufactured unit, offering the potential for
significantly increased performance.
more information you can read the following papers, or contact
Performance Criteria for Residential Zero Energy Windows
Highly Insulating Glazing Systems
using Non-Structural Center Glazing Layers,, D. Arasteh,
H. Goudey, C. Kohler, 2006, Submitted to ASHRAE for review.
Windows for Zero-Energy Homes