Awnings in Residential Buildings. The Impact on Energy Use and Peak Demand, study conducted by the Center for Sustainable Building Research, University of Minnesota.
Window awnings reduce solar heat gain by 65% to 77%. – Get energy saving tips from the U.S. Government. U.S. Department of Energy, Consumer’s Guide to Energy Efficiency and Renewable Energy.
Home Energy Saver – a web-based do-it-yourself energy audit tool developed by the Environmental Energy Technologies Division at Lawrence Berkeley National Laboratory. Enter “Exterior Sunscreens” for fabric awnings in the Doors and Windows Section