The article discusses a new trend of our time-green roof. The types of roof landscaping, their differences and average costs are described. The reasons of alternative replacement of a traditional roof and indisputable advantages of green are explained. The main layers of the "pie" of this roof and the principle of inverted roof, which is becoming increasingly common in the world, as well as its advantages, are considered. The popularity of green roofing in Russia and the opportunity not only to visually improve your home and create a "green corner" without leaving home, but also to reduce heat costs, increase noise insulation and clean the air from harmful impurities.

Keywords: green roof, extensive landscaping, intensive landscaping, inverted roof principle, minimizing heat loss, economical energy consumption, noise insulation

This article is focused on improving the principles and methods of assessing and planning the costs of construction projects as an integral part of organizational and technological preparation of construction. Organizational and technological preparation of construction, consists of interconnected solutions to the problems presented in the blocks and subsystems in the diagrams in the drawings. The objectives of solving such problems are described. The schemes from which we can draw a conclusion about the basic functionality and means of organizational and technological preparation of construction are presented, the most important of them are listed

Keywords: organizational and technological preparation, building parameters, duration of construction, construction factors, management scheme