hello, started a topbar i made in june with a swarm. they have been doing well and have filled 3 quarters of the hive already. they don't have much capped honey, but thats probably beacuse they used alot they brought in to build comb. I'm planning to start feeding 1:1 syrup. My question is, with my location in northeastern massachusetts, what can i do to help insulate the hive and prevent condensation? thinking inch foam board on the outside, any other ideas?