Evaluation of Solar Radiation Transmission through Window glasses and Transparent Facades for Buildings in Sulaimani

In this work, we discuss the optical behavior of transparent materials used in Sulaimani for windows and in building facades such as fully transparent colorless and colored glass of different thickness in single and double- pane windows, a one way colored reflective glass window, as well as Tempered reflective glass. Ultraviolet, Visible and Infrared transmittance by these glasses is studied; the results are related to the visual comfort, heat transfer and health issues. Spectrophotometric analysis of the transmitted radiation is carried out at the proper incident of a wavelength range from 1200 nm to 190 nm, with steps of 1 nm. It is clear that attention should be paid to the quality of glass used for home and building facades to reduce visual strain, discomfort and avoid the risk of developing sun damages for our skin and its adversely affect for fabrics and furnishings.