most common types of roof trusses roof truss types building roof trusses roof trusses sheehan inc roof trusses roofgenius 10 common types of roof trusses 11 types of trusses the most used advanes and types of steel roof trusses types of roof trusses fine homebuilding structural model of a post and beam types of roof structures geometry of 5 timber roof structures explained parts of a roof comparing roof truss types