In particular, it should be said that the main difficulties arise precisely because of the covered courtyard, which significantly increases the width of the building. This complicates the construction of buildings in places with the preservation of the eternal -free state of soils. In addition, the cubature of the house increases prohibitively, the insolation and illumination of the premises going inside the courtyard worsens, the ventilation and heating systems are extremely complicated, the risk of moisture condensation on the coating of the courtyard, etc. D.