Back from a rousing game of golf..
(not really!)
Linda.
Since you are in zone 6, your semps should fare much better outside than inside. They need the cool temps and bright light won't hurt them while they are cool. Just watch out for drying winds during periods of long drought. In other words, if you go for a month without any rain, and you do not have snow cover, a small sip of cold water would be appropriate. Don't overdo it. On the other hand, if your winter is very wet, then you may want to set up a rain shield or cover them with transparent plastic IF you do not get lots of sunshine. Remember that greenhouses generate heat by capturing infrared light which can burn plants if they get too hot. IF that is a concern, keep the sides open for airflow and the plastic a foot or better from the plants. They'll tolerate the cold better than sunny day baking.
Regarding rooting, the plants will send out roots when they need them. My observations suggest to me that rooting will take place in about a month. If your plants have not been moved for a month, then they have likely rooted. The initial roots are tiny and hairlike, so aremeasy to miss unless you dig them up, which you really don't want to do.
Remember the principles of tough love. If you coddle your semps too much by taking them inside, you will make them weaker.
