Winter garden: constructional systems
Constructional systems of roofs and their three-dimensional combination with side glass cover play special role in winter gardens. The winter garden should be beautiful, transparent, light and at the same time strong enough and steady to mechanical and atmospheric impacts. The main characteristics of any winter garden is safety of its elements, protectability of an internal space from cooling and overheating, rigidity and durability of a skeleton, optimum optical transmission and high firmness to extreme atmospheric phenomena.
There are several technologies and constructive systems of winter gardens which have passed long approbation. Essentially systems are subdivided into three groups depending on a constructional material: from PVC (plastic systems), aluminium and firm wood varieties. It is necessary to consider that modern systems are combined frequently. Wood systems are sensitive to atmospheric influences, they are much more difficult to unify. Even in the developed western countries wooden winter gardens are exclusive constructions for the time being, though some known firms specialize on those very wooden elements. These piece “works of art” cost much more expensively than constructions from new modern materials.
Use of modern materials and elements has allowed to lower cost of such constructions, but has put a problem of a choice before the consumer: plastic or aluminium.