Calculation of materials for the mansard roof
Specify the dimensions of the roofheight Y height Y2 width X overhang C Length B roof materialsThe width of the rafters The thickness of the rafters The distance between the rafters The distance from the edge to the roof rafters The width of the batten boards Thickness of boards lathing The distance between the boards lathing The height of the roofing sheet The width of the roofing sheet lapping
| Dimensions in terms of one half of the main roof. | |
| Initial data | |
| The width of the rafters | 15cm |
| The thickness of the rafters | 5cm |
| The main roof overhang | 30cm |
| Width of the main roof on the walls | 300cm |
| height Y | 200cm |
| height Y2 | 40cm |
| The length of the main roof (horse) | 370cm |
| The size of the main roof | |
| The height of the main web of the roof | 300cm |
| The width of the blade (the skate) | 370cm |
| The area of the main roof | 11.1(22.2)square meters |
| rafter length | 300(250+50)cm |
| Number of rafters | 6(12) |
| The volume of material rafters | 0.14(0.28)cubic meters |
| Number of rows batten boards | 15(30) |
| Displacement batten boards | 0.2(0.4)cubic meters |
| The number of roofing material | 11(22)sheets |
| 2series in | 5.5sheet width on each half |
| The underlay material (asphalt, roofing material ...) | 30square meters |
| when the joint it | < 25% |