Hi, I live in Alaska.  A tree, base more than 12" at the trunk, cracked at the trunk during a wind storm in November -- there were -30 degree winds after that.   The tree crashed through the coop roof, and we have a gaping hole and branches in the coop.  Our weather has been extreme this year; zero to negative numbers for several weeks.  I have a 75 watt red flood lamp in the roost area, which is insulated with plastic only.  I take fresh water out 2 times daily, plus have water on a heated platform.  I feed scratch and high carb one to two times daily, and they seem fine, but their coop is a disaster, and we can't fix it until spring time.  I'm so worried about my girls!  They are holding up well, even Crippy, the one with the broken hips, I carry her down from the roost to feed, but she makes it down on her own a lot of the time.  When I check in the evening, her back is covered with frost from the moisture in the breath of the other chickens landing on her back (she roosts lower because of her handicap).  I know they are miserable.  What can I do?  They are finding pockets to dust, but the coop is frozen solid, for the most part, from floor to ceiling.  They have a dirt floor, and a sandbox in the corner.  Any advice???  This is so painful to watch and endure!  I'm afraid to put 250 watt heat lamp in for fear electricity will go out and then they won't stand a chance.  Anyone else have these issues right now???  Thanks.