How to calculate the cost of corrugated iron roof on any roof surface of any project should be carefully calculated before construction.
For example a building on the ground with an area of exactly 82m2. In which the length is 11.7m and the height from the steel truss to the top of the corrugated iron roof is 2m. So the roof surface for roofing will be calculated according to the formula of rectangular area of 82/11,7=7m.
From the top of the roof, lower a high line down to the length of the floor, which is the midpoint of the width, from which the width of the house is calculated as 3.5m. The corrugated iron roof and steel truss frame are triangular in shape. From the height of the steel truss line from the top to the bottom, we get 2 equilateral triangles. There are two main square sides, the height of the steel truss and half the width.
Applying the formula to calculate the hypotenuse of a right triangle, we get: b2= a2+c2 = 5.5m. This is also the length of the corrugated iron roof slope.
From the above data, we can calculate the area of corrugated iron roof:
(Slope of corrugated iron roof x 2) x length of floor surface = (5.5 x 2) x 11.7 = 128.7m2
For a house with a different area or a factory, it is necessary to draw the model as above and apply the same formula to control
The formula to calculate the area of materials for the corrugated iron roof
Parameters of the house prepared to make a corrugated iron roof are taken as an example:
The beam has a width of 150 mm
The truss bar has a thickness of 50 mm
he main roof protrudes 500 mm
Width of main roof excluding side walls 6000 mm
The height of the roof from the top of the house to the concrete wall 3000 mm
The length of the main roof including the surrounding wall is 6200 mm
* Dimensions of the roof for corrugated iron roofing are as follows:
The roof height from the ground to the top of the roof is 4950 mm
The length of the floor including both sides of the wall is 6200 mm
With the above data to calculate, we can get the following parameters:
Main roof area 30.69 m2
Truss length is 4950m
The number of trusses on one side of the roof is 11 (total of the roof is 22 trusses)
The cost of the rafters is 0.41m3
Volume of turning base unit 0.58m3
The number of roofing materials is 36 sheets
The auxiliary materials, lining is 62m2
