Managing Risk 1: The threat to property and personal safety can be minimized through compliance with up-to-date model building codes and engineering standards. Fujita Scale: F0 Description of Damage: Some damage can be seen to poorly maintained roofs. Unsecured lightweight objects, such as trash cans, are displaced. Fujita Scale: F1 Description of Damage: Minor damage to roofs and broken windows occur. Larger and heavier objects become displaced. Minor damage to trees and landscaping can be observed. Managing Risk 2: Property and personal protection can be improved through wind hazard mitigation techniques not normally required by current building codes. Fujita Scale: F2 Description of Damage: Roofs are damaged, including the loss of shingles and some sheathing. Manufactured homes on nonpermanent foundations can be shifted off their foundations. Trees and landscaping either snap or are blown over. Medium-sized debris becomes airborne, damaging other structures. Fujita Scale: F3 Description of Damage: Roofs and some walls, especially unreinforced masonry, are torn form structures. Small ancillary buildings are often destroyed. Manufactured homes on nonpermanent foundations can be overturned. Some trees are uprooted. Managing Risk 3: Personal protection can only be achieved through use of a specially designed extreme wind refuge area, shelter, or safe room. Fujita Scale: F4 Description of Damage: Well-constructed homes, as well as manufactured homes, are destroyed, and some structures are lifted off their foundations. Automobile-sized debris is displaced and often tumbles. Trees are often uprooted and blown over. Fujita Scale: F5 Description of Damage: Strong frame houses and engineered buildings are lifted from their foundations or are significantly damaged or destroyed. Automobile-sized debris is moved significant distances. Trees are uprooted and splintered.