What is a recommended practice for decks to improve wildfire defensibility?

Enclosing or screening decks with 1/8 inch metal screening is a recommended practice for improving wildfire defensibility because it creates a physical barrier that prevents embers and small debris from igniting the structure. During a wildfire, flying embers can travel significant distances and pose a serious risk to structures, particularly those that are not adequately protected. Metal screening is durable, non-combustible, and effectively keeps out flammable materials, thereby reducing the likelihood of ignition.

In contrast, storing flammable materials underneath a deck can increase the fire hazard, as these materials can easily ignite from radiant heat or direct flame. Keeping the deck open for airflow, while it may seem beneficial for ventilation, does not provide adequate protection against embers and could potentially allow for greater exposure to flames. Finally, building with wooden structures only does not enhance defensibility but rather increases vulnerability, as wood is a highly combustible material. Utilizing non-combustible materials and protective measures, such as screening, is essential in wildfire-prone areas to enhance safety and resilience against wildfires.