The roof is part of architectural image of the building. In fact, it is the most important protective constructive part of the building. Not only the durability of construction, but also exterior of the house and also comfort of accommodation in it depends on quality of roof. Therefore the choice of roof – responsible business.
Instruction
1. Pay attention that the roof consists of two basic elements: load-carrying structure and roof. The load-carrying structure consists of edge, slope, the fad and overhang. Features of the structure of these components of elements also influence classification of roofs.
2. On constructibility of execution of roof are cattle and flat or as they are called, beskatny. In turn cattle roofs can be lean-to (as their points of support serve the external walls of the building located at the different levels), dual-slop (such roof in cross-section represents triangle), chetyrekhskatny (valmovy) and difficult.
3. Besides, the roof can be mansard. This type of roof structure allows to use garret space for creation of additional premises. Slopes of such roof represent the broken line: top slopes flat, and the lower abrupt.
4. Besides, the roof can be valmovy. Such design consists of the main part executed in the form of trapeze, and additional triangular elements located from building faces. Types of valmovy roofs: poluvalmovy and tent.
5. Also all roofs conditionally are divided into two big groups: the roofs built in urban development and roofs for dachas and cottages.
6. On the level of thermal insulation of roof happen two types: warm and cold. If in roof design there is attic, then such roof is called warm (the attic provides thermal insulation at the expense of airspace between external walls, roof and overlapping of the top floor).
7. As water insulation course, to the size of roof and its external types happen mastic, rolled, sheet, membrane and type-setting roofs. As for classification of roof by the used roofing material, it is diverse as there is good selection of the material intended for construction of roofs.