Eskimos are the residents of Arctic regions. They usually live in a tent of animal skin in the summers and igloos in the winter. As you were asking, th first step of making an igloo is making of a circle on the snow. Big snow outside the house is higher than the floor of igloo. A short passage in front of an inverted bowl shaped igloo is made.
the houses built in the arctic regions are known as igloos.igloos are made of is an insulator.the heat generated inside the house thus does not comes out and keeps the house hot.the gates of these houses is very small.