Truncated truss
Bow string truss
Bel fast truss
Mansard roof truss
5 Degree
6 Degree
8 Degree
10 Degree
Barrel vault shell roof
Steel frame dome
Belfast roof
Bowstring roof
1 in 15
1 in 20
1 in 60
1 in 130
15 cm
20 cm
25 cm
30 cm