Optimising Thermal Insulation of Buildings by Influence of the Service Life by Help Computers

For building constructions, a new philosophy of their designing has been formulated. According to this, a building construction of optimal design should have the required standard and the minimum sum costs to make up construction and running cost during the anticipated service life of a building. The thermal insulation has an important part of running cost by external walls windows and other external constructions. In this article is described only optimizing of external walls, roofs and ground floor of buildings.