Minimum Temperatures

[Linds]

What's the lowest temp rats can be raised at (babies excluded, weanlings and up)? Just wondering because I am having to make expand my rat accomodations and would prefer to keep them out of my bedroom for now if possible, but the only other place I can think of that has any space is the coldroom in the basement I think the temp is around 50-60 degrees in there. I think it might be ok since you see them running around in barns all winter long, but just wanted to get everyone's opinion