Randy wrote: On the underside of that cover in an
empty (no bees) hive, the temp can reach 145F, and the temperature of
the
top bars roughly 1/8" below can reach 122F."
That shows how much warmth can get through wood and suggests that it is
useful to have hives placed where the sun can strike them slanticularly
during the winter to enable the cluster to expand and reach new stores.
Don't bother if you use polystyrene!..
Chris
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