ok the temps are going to drop 25 -30 degrees below normal tonight and stay that way all week. I am worried about all my critters, my chickens the most cause I have already had frost bite issues. I have lamps ( 2 ) for 21 hens in a 10 x 12 building with plenty of room for them to get away from it if wanted. good vents, but house is not insulated. I have heard that snow is a good insulator???? if I piled the snow up around the walls ( I have plenty ) would it do any good? any suggestions would be greatful....