Roof Coverings, such as shingles that meet the
2001 FBC Requirements.
Roof Decks that have been installed with large
nails and close spacing.
Hurricane clips/straps that hold the roof structure
to the walls and provide better up-lift resistance.
Protection of Openings such as windows and glass
doors with impact resistant glazing or other hurricane shutters/opening
Secondary Water Resistance that prevents the roof
from leaking if the roof covering is blown off in a windstorm.
Roof Design, Hip roofs seem to divert the stronger
winds and receive a better rating.