Multi-layer window structure

Multilayer window structure of the present invention, and one of the window plate made of glass; made of polycarbonate, the one of the window plate smaller in the longitudinal and lateral widths of both than the other of the window plate which is formed to a thickness of 5mm~30mm ; wherein is arranged to extend along the periphery of one of the window plate and the other of the window plate, a hollow annular spacer having the one of the window plate and holes facing the air layer of the other window plates ; while extending along the periphery of said one of the window plate and the other of the window plate, between said the one of the window plate of the spacer, and, between said the other of the window pane of the spacer placed, primary seal member having a thickness of 0.5mm or more and width 6mm or more elastic bodies and; comprises a.