Abstract: Means forming a thermal protective barrier for inhibiting the transfer of energy between the environs and an open refrigerated compartment or bin during limited periods of inactivity has been provided by a pliant panel sufficiently extensive to cover the opening of the compartment. The panel is readily fastenable to an edge margin of the freezer compartment so that it can be draped across the open compartment. The panel comprises sections readily releasably secured together in sections to be easily removed for selective access to limited portions of the freezer compartment and for easy handling and storage of the sections. The closure panel is constructed whereby condensation accumulates on the exterior surface while a thermal barrier layer lies protected from condensate on the internal surface.