Glass body having enhanced heat insulating performance

A glass body, comprising:

• a first glass plate configured to have a first surface and a second surface on an opposite side to the first surface,
• wherein at least one plate surface of the first surface and the second surface includes a plurality of radio wave transmission regions through which radio waves corresponding to 3.5 GHz to 30 GHz are allowed to be transmitted and which is spaced apart from each other, and a conductive film region that is entirely coated with a conductive film having a blocking property for the radio waves around the radio wave transmission regions,
• the conductive film is a Low-E film,
• a patterning part having a plurality of radio wave passage sections through which the radio waves are allowed to pass and which is spaced apart from each other, and a conductive film section in which the conductive film is formed between the radio wave passage sections adjacent to each other is formed in each of the radio wave transmission regions, and
• each of the radio wave passage sections is formed of fine wires having a width of 5 μm or more and 30 μm or less, a width of the patterning part is 2 mm or more and 5 mm or less, and an interval of the fine wires adjacent to each other is 500 μm or more and 1 mm or less.