Abstract: An insulating tile may be attached to an interior or exterior surface adjacent to a chilled compartment of an aircraft galley structure to increase the overall thermal resistance of the galley structure (as well as the capacity of the galley air/liquid chiller system). The insulating tile includes an outer barrier encapsulating a thermally resistant core material within a vacuum, both the outer barrier and the core material resistant to flame propagation and thus suitable for commercial aircraft use. The insulating tile may further include getters within the core material to maintain the vacuum (and thus the thermal resistance of the tile) by absorbing moisture. Scannable passive pressure and/or moisture sensors may be placed within the core material for reporting at a glance the state of the vacuum, so that a particular tile may be serviced or replaced if necessary.