Garden on the roof (Part 2)
Somewhat modern representations about green roofs have come to the Western world from ancient Scandinavia. There the turf was the most accessible roofing material. Though scale projects of green roofs have been carried out in Babylon. Long time the device of gardens on roofs was the privilege of governors and the court nobility. Now the situation has changed for the better and technologies have stepped far forward.
Gardening of roofs can be divided into two basic groups: extensive and intensive. The first one serves almost exclusively to the ecological and aesthetic purposes. Requirements on the maximal loading on a roof at extensive gardening allow suit flower beds on roofs of even old buildings, while intensive gardening assumes serious works on a waterproofing and calculation of “endurance” of designs of a building. The “intensive” garden, consisting of trees, bushes and elements of landscape design, can be use for the recreational purposes. Such garden can be arranged on own roof near to a penthouse.
Representatives of the companies, engaged by roofs gardening, name exact quotations on this exotic kind of works. The price depends on an arrangement of a building, height, the area of the future garden and many other things factors. The price may vary from 20 and to 500 thousand dollars.
The same as little Alice could not get into the garden because of too small doors, owners of penthouses also cannot often help ecology of city for the simple reason: a roof of many houses is unable to sustain loading of greater trees and a ground. Choosing a penthouse with a way out on a roof, ask to calculate the maximal loading on it in advance.
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