What is the size of zone 1 for defensible space?

The size of zone 1 for defensible space is defined as the area ranging from 0 to 5 feet from the main structure. This zone is critical because it requires the most stringent fire-safe landscaping and maintenance practices to reduce ignition potential. In this immediate vicinity, the focus is on using fire-resistant materials and plants that are less likely to ignite from heat radiating from a fire or embers.

Within this 0 to 5-foot area, it's essential to maintain a clear space by keeping combustible materials, including flammable plants, mulch, and debris, away from the structure. The rationale is that this zone acts as the first line of defense against wildfire threats, and by creating a minimal ignition potential near the home, the chances of a fire spreading toward it are significantly reduced. This understanding is foundational for effective wildfire mitigation strategies.