Creating Defensible Space Around Your Home

Zone 1 is the area of maximum modification and treatment. It consists of an area immediately around the structure in which flammable vegetation is removed.

Zone 2 is an area of fuel reduction. It is a transitional area between Zones 1 and 3. The size of Zone 2 depends on the slope of the ground where the structure is built. Typically, the defensible space should extend a minimum of 30 feet from the structure, and ideally to your property line. Within this zone, the continuity and arrangement of vegetation is modified. Remove stressed, diseased, dead or dying trees and shrubs. Thin and prune the remaining larger trees and shrubs. Be sure to extend thinning along either side of your driveway all the way to your main access road. These actions help eliminate the continuous fuel surrounding a structure while enhancing safety and the aesthetics of the property.

Zone 3 is an area of traditional forest management and is of no particular size. It extends from the edge of your defensible space to your property boundaries.

Contact your local fire department or forestry office for information specific to your community.

 

1. Thin tree and brush cover.
2. Dispose of slash and debris left from thinning.
3. Remove dead limbs, leaves and other litter.
4. Stack firewood away from home.
5. Maintain irrigated greenbelt.
6. Mow dry grasses and weeds.
7. Prune branches to 10 feet above the ground.
8. Trim branches.
9. Clean roof and gutters.
10. Reduce density of surrounding forest.
 
Maintaining Your Defensible Space
Your home is located in a forest that is dynamic. Trees and shrubs continue to grow, plants die or are damaged, new plants begin to grow, and plants drop their leaves and needles. Like other parts of your home, defensible space requires maintenance. Use the following checklist each year to determine if additional work or maintenance is necessary.
 
Defensible Space Annual Checklist
  • Thin trees and shrubs within the defensible space
  • Clear roof and gutters of debris
  • Remove overhanging branches from the roof and chimney
  • Check that chimney screens are in place and in good condition
  • Mow grass and weeds to a low height
  • Attach a hose that can reach to all parts of the house
  • Make sure clearance of trees and branches is adequate for emergency equipment
  • Post house numbers that are visible from all directions of travel
  • Practice your fire evacuation plan
  • Discuss escape routes and meeting points so they are understood by all family members
  • Screen attic, roof, eaves and foundation vents
  • Remove trash and debris accumulations from the area around your home