||Effects of the Climate Control Solar Screen on the Thermal Propertiesof Windows
Prepared for Americas Energy Solution, Arlington, Texas
Today, many energy-saving shading options exist with a uniform means to determine their solar optical properties and their affects on the thermal properties of windows. Thus, with no recommended standards or procedures when making spectroradiometric measurements (NFRC 2002), this study uses industry accepted fenestration software to determine the thermal and optical effects of solar screen material on windows.
In this study, the thermal calculations for the window are made using the recommended Window 4.1 program (Finlayson et al. 1994). The thermal properties of the solar screen material were measured at the Yellott Solar Energy Laboratory under the direction of John Elliot Engineering Associates, Inc. (1982). See Appendix. In addition, the glass optical properties were determined using the spectral database for Varicon glass products. It is important to note that field measurements were not within the scope of this study.