For the economical roof construction, it is necessary to create an exact roof plan with an indication of all sizes, calculate the roof area and decide which roofing materials will be used for hydro, steam and thermal insulation, as well as directly the roof itself.
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The roofs can be of any shape: one-, two-, four- and multi-sighted, plumbing, holm or semi-haul. The easier the shape of the roof, that respectively the calculations are easier. You have to remember geometry, because you will deal with triangles, trapezes, rhombuses, as well as with incorrect geometric shapes.
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If the rafter system was installed without a roof plan, which should be in the project at home, make up the roof drawing itself after the necessary measurements. Measure the height of the roof - this is the distance from the highest point (skate) before the overlap. If the roof rates have a few bends, it will take for each of them to measure the vertical from the overlap to the bend point. In addition, you need to know the roof base parameters (length and width of the house). To make it clear, make a drawing in the projection, mark the dimensions on it. Please note that the calculations must also add a circulation of the roof.
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In the case of a single-table roof, calculate the area like this: Measure the length and width of the skate, add to each value of the margin on the sink and multiply the values \u200b\u200bobtained. Either the second option, on the basis of which all calculations are underway for more complex structures: the base area of \u200b\u200bthe roof, taking into account the reserve, multiply into the cosine of the angle, formed by the roof of the roof with overlapping.
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In complex structures, the surface of the roof is necessary:
To split into simple figures, while it is important for each element to know its angle of inclination relative to the horizontal axis and take into account whether the stock is needed for this element.
Take advantage of the roof on the horizontal plane.
Calculate the area of \u200b\u200bprojection of each skate element (taking into account the reserve, if necessary), multiply this value to the cosine of the angle of inclination of this element of the skate. Do not forget to fix all the calculations on paper.
Fold the calculated area of \u200b\u200ball items.
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Holding the area of \u200b\u200bthe roof, it is important to keep in mind that from the total area of \u200b\u200bthe roof it is not necessary to deduct the chimney pipes and ventilation channels, parapets, anti-aircraft lights, as well as attic or hearing windows. Those. When projecting the roof, these elements can even be drawn.
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Roof area for four-sheet roofs can be calculated online. In addition to the calculator itself, the site reveals in detail the geometry of this roof.
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For a simple and complex version of the duplex, as well as a single and attic roof to create a drawing and calculate the area of \u200b\u200bthe roof will help free service. His a huge advantage is that the accuracy of calculations is so high here that even the parameters of the rafter, the shell boards and roofing sheets, taking into account the adolescence (if you wish).
If such calculations turned out to be complex due to the shape of the roof or for other reasons, you can always refer to specialists in this area.
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