2" pink styrofoam over top the inner cover housed in a 3" 'vent' box (i use these year round) copied tim arheit, honey run apiaries, outer cover over it. inner cover entrance cut out at about 2 1/2 or so inches. (year round, works for me).
i also use a 1 1/2" shim placed directly over the top deep to put feed in if need be directly on top the frames (patties, not fondant). so shim above top deep, inner cover, 2" pink styrofoam, outer cover, good to go!
orange pollen? pumpkins, do you have them? or someone nearby?