Enhanced Fujita Scale Damage Indicators and Degrees of Damage

Small Barns or Farm Outbuildings (SBO)

Typical Construction:

Table 1. Degree of Damage (DOD) for Expected (EXP), Lower Bound (LB) and Upper Bound (UB)
DOD	Damage Description	EXP*	LB*	UB*
1	Threshold of visible damage	105	85	129
2	Loss of wood or metal roof panels	119	98	146
3	Collapse of doors	134	109	164
4	Major loss of roof panels	145	126	177
5	Uplift or collapse of roof structure	150	124	177
6	Collapse of walls	156	130	192
7	Overturning or sliding of entire structure	159	134	190
8	Total destruction of building	180	151	211