0.65 kN/m2
0.75 kN/m2
1.35 kN/m2
1.50 kN/m2
± 0.2
±0.5
± 0.7
0
10 m
20 m
25 m
50 m
mean probable design life of structures
basic wind speed
both mean probable design life of structures and basic wind speed
none of the above
degree of permeability of roof
slope of roof
both (a) & (b)