And last but not least, the roof deck system. Although rare and unlikely, deck failures can occur. Deck failures can be caused by excessive weight, typically as a result of the weight associated with standing water. Decking failures can also occur as the result of storm damage from high winds. Roof decks can deteriorate over time leading to failures.
Many buildings in Florida incorporate metal decking as the roof deck including shopping centers, big-box stores and similar buildings. The next time you enter a retail store look up. If there is no drop ceiling, chances are you will be looking at a metal deck. The metal decking you see above your head serves as the support for the roof assembly. The metal roof deck is typically galvanized coated or painted steel. The galvanized coating is just that, a coating applied to steel. Steel is a ferrous metal that is highly susceptible to corrosion. Many assume that the coating is sufficient to protect the steel from rusting. Unfortunately it isn’t.