Method for manufacturing multi-layer stack and multi-layer stack

A multi-layer stack comprising:

• a glass panel unit including:
• a first glass panel;
• a second glass panel;
• and an evacuated space provided between the first glass panel and the second glass panel, a plurality of spacers made of a resin being provided in the evacuated space between the first glass panel and the second glass panel;
• a first transparent plate provided for an outer surface of the first glass panel;
• a first intermediate film interposed between the first glass panel and the first transparent plate;
• a second transparent plate provided for an outer surface of the second glass panel;
• and
• a second intermediate film interposed between the second glass panel and the second transparent plate,
• wherein the first glass panel and the first transparent plate are bonded together with the first intermediate film interposed between the first glass panel and the first transparent plate,
• wherein the second glass panel and the second transparent plate are bonded together with the second intermediate film interposed between the second glass panel and the second transparent plate,
• wherein one of the first intermediate film or the second intermediate film is made of a polyvinyl butyral resin and the other one of the first intermediate film or the second intermediate film is made of an ethylene vinyl acetate copolymer resin, and
• wherein the intermediate film which is the one of the first intermediate film or the second intermediate film that is made of a polyvinyl butyral resin has a moisture content falling within a range from 0.1% by weight to 0.5% by weight.