LENGHT OF THE PITCH	SLOPE OF THE PITCH
from 0 to 5 meters	30%
from 5 to 6 meters	33%
from 6 to 7 meters	36%
from 7 to 8 meters	40%
from 8 to 10 meters	46%
from 10 to 12 meters	52%
from 12 to 14 meters	60%

DEGREE/% COMPARISON TABLE AND CALCULATION COEFFICIENT OF INCLINED SURFACE

SLOPE		Coefficient for the calculation of the surface of the roof
percentage (%)	degrees (°)
1,75	1	1,000
3.50	2	1,001
7,00	4	1,002
10,51	6	1,005
14,05	8	1,011
17,74	10	1,016
21,26	12	1,022
24,93	14	1,030
28,67	16	1,039
32,49	18	1,050
36,40	20	1,063
40,40	22	1,078
44,52	24	1,093
48,77	26	1,110
53,47	28	1,132
57,74	30	1,152
62,49	32	1,177
67,45	34	1,204
72,65	36	1,233
78,13	38	1,268
83,91	40	1,290
90,04	42	1,345
96,57	44	1,390
100,00	46	1,412
103,55	48	1,440
111,06	50	1,493
119,17	52	1,555
127,99	54	1,620
137,64	56	1,700
148,28	58	1,790
160,03	60	1,886
173,20	62	1,999