I know this is an older discussion. I have a similar but opposite question. I live in an extremely hot and humid region. My Dad has several hives at his place nearby and they are often bearding. I’m setting up my first flow hive. I have an old fallout shelter on my property. Basically a concrete bunker. There is limited sunlight in there with just a few glass block “windows,” but the temperature is very stable. My first colony here were wild bees living within the walls of a playhouse on the property, so I’m thinking they would work just fine in the dark and appreciate the stable cool temperature in the bunker. I can leave the doors open wide enough that they can get in and out. I regularly see cockroaches and termite activity in there but not sure if they would be a problem for the colony. Alternatively, I could place the hive outside in the shade but even in the shade here, summer is roasting and stressful. Any advice?
Hello and welcome to the Flow forum! 
You could try the fallout shelter, but the hive may not get started early in the day if it doesn’t get direct sun. Cockroaches shouldn’t be a problem but termites could be, depending on the type of wood you choose for the hive. I would make sure that the hive does not sit directly on the soil, and perhaps even get ant guards (like the FH2+) or an ant-proof stand.
Another possibility is to keep the hive outside, but consider a slatted rack under the brood box. It gets pretty hot here in California, but my hives very rarely beard since I put slatted racks in them.
Thanks for the suggestions. The floor of the shelter is concrete but termites are wily. It’s a cedar hive, but good point about the termites eating the hive wood itself. Around here we put metal termite shields on things so you can see if they are tunneling up and knock the tunnels off. I’m wondering how my wild bees knew when the day started when they were within a totally enclosed exterior wall under a shady tree (basically total darkness all day). Do you think there may sometimes be a sentry that wakes everyone up? Lol.
I think it is not just the light, but the warmth. It is much more tempting to run out to the bathroom when it is warm, than when it is cold outside and you are leaving the warmth of the hive. 
I love your sense of humor though, thank you for the giggle!
Cedar is less prone to termite attack than pine, so you made a good choice. I don’t know what options you chose for your hive, but if you want a hive stand that might deter termites, or at least make it obvious that they are attacking, this is an option:
http://defyantstands.com