The roof insulation creates a microclimate in the attic, which is the main barrier for cold air coming from the roof. The process of insulation consists of several main stages. The first stage of roof insulation is the creation of a frame for installing insulation bags from the attic side. The frame for insulation packages is created between the rafters. Depending on the size, insulation packages are installed in the openings between the rafters, two or three packages in the stout with a small seal.