In order to largely increase the area of a country or country house, you can insulate a wooden attic. These actions must be performed according to the same scheme as insulation of the house as a whole. To reduce heat loss, it is necessary to insulate the entire constructive surface of the house, which is in contact with the external environment. In the process of construction and repair, it is necessary to insulate the walls of the attic and the roof. If we talk about the insulation of the attic, then it is best to do this at the construction stage. If the house has already been built, then under the attic, unlike the entire house, there is no heat pillow, so to exclude significant heat loss should start with the roof insulation. The easiest way is to warm the attic with foam — this will be the type of insulation from the outside. Because internal insulation will not be so effective and beautiful.