According to roofing codes, what is a must-have deck in areas with seismic activity, hurricanes, and tornadoes?

A solid deck is essential in regions prone to seismic activity, hurricanes, and tornadoes because it provides a continuous and robust surface that enhances structural integrity and stability. This solid construction helps distribute loads evenly across the roofing system, reducing the risk of failure during extreme weather events. In areas with high winds or seismic movements, a solid deck prevents the roof from becoming dislodged or damaged, thereby protecting the entire building structure beneath it.

Other types of decks, such as open beam or nailed decks, may not provide the same level of protection or attachment security. Plywood decks can be beneficial, but they need to be installed correctly and may not always meet the necessary requirements in high-risk areas if not reinforced appropriately. The use of a solid deck is a crucial component of roofing codes to ensure resilience against severe environmental conditions.