Abstract
In recent years, energy saving have become an important subject. This is resulting from issuessuch as exhaustion of resources, environmental issues such as global warming and atmosphericpollution. Under these circumstances, cooling load has become an important issue concerningwindow panes used in buildings. IR reflecting window panes/heat absorbing window panes are usedto shield sunshine as one solution for saving energy. However use of such window panes hasseveral issues, one of which is the window panes having to be colored. Use of heat absorbingwindow panes has a large effect on shielding sunshine. However, when the sun is shining,elevation of room temperature tends to be greater compared to transparent window panes. Webelieve that the room temperature rise is caused by the fact that the temperature of heatabsorbing window panes themselves elevates by absorbing sunshine. This report details ourproduct that we have developed which is a transparent insulation coating. This product wasdeveloped byreviewing the relevancy of surface temperature and internal temperature of variousglasses with different solar absorptivities and also by reviewing room temperature change andcondition of dew condensation when difference of outside temperature and room temperatureexists
