The roof protects the object from atmospheric influences. It consists of a load-bearing structure and a roof covering. According to the number of roof level roofs can be single, double and multiple. Depending on the climatic conditions and the type of cover, the angle of inclination of the roof level is also determined. The roofing contractor oshawa is the best one in the area that can provide you professional service.
The angle of inclination is the angle that closes the line of the largest fall of the roof level (the line at which droplets of rain fall down the roof plane) and the horizontal part of the attic. Slopes of roof levels are expressed in degrees or percentages. The slopes of the roof rails range in the range of 1% for flat roofs, up to 85 ° with steep roofs coated with bitumen. Metal as a roof cover is used for roofs of a slight inclination of at least 10 °, and is also used for very steep roof surfaces on the dome. At one multi-annual deck we distinguish the basic elements of the roof level and their mutual cross-sections: a) ridge, b) ridge, c) bay.
As a support and base for fixing the sheet, most commonly used slippery coating or concrete slab. If the sheet is laid over the concrete substrate, then when concrete is applied to concrete, it is necessary to install wooden packs. Sheets such as roof coverings are used due to a number of advantages: la waterproofing, roofs with minimal drops can be carried out without fear, great savings on load-bearing structures and transport costs are paid to other cover materials. In addition to the advantages of metal roofing covers have their own materials. One of the major disadvantages is the size of the dilatation when changing the temperature. Therefore, the metal roof cover must be installed so that every 10 -12 meters of galvanized sheet cover is made of dilatation joints, in copper sheet metal every 9-10 meters, and for zinc plates at every 6 meters.
Roof covering technology includes the preparation phase and the installation phase on the building itself. Preparation takes place in the workshops and consists of cutting, bending, cutting and partial joining, and the installation consists of laying and fixing the roof cover. Cutting is one of the most important and most responsible operations. It is performed by highly qualified workers. The accuracy and incorporation of elements and the rational utilization of materials depend on the design.
The trowel and bending board should be marked so that, when bending, seams can be formed which will provide interconnection between the adjacent boards within a single band as well as the flexible connection between the belts, according to the stages of the formation of the free standing seam, the standing double seam and the double seam.
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