Definition of the term Hermetic Seal
Vacuum seal between panes of a double-paned window, i.e. insulated glass unit or IGU. Failure of a hermetic seal causes permanent fogging between the panels of the IGU.
Total House Inspection Blog
Vacuum seal between panes of a double-paned window, i.e. insulated glass unit or IGU. Failure of a hermetic seal causes permanent fogging between the panels of the IGU.