
The individual home is the smallest unit of fire defense. It is also where the resident has the most control.
The individual can also impact the local/neighborhood scale through working with their HOA and neighbors, and the regional scale through working with their municipalities. Please check out those tabs above to learn more about how to help on a greater scale!
Three home zones.
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Zone 0
1. Clear all plant material from the area
2. Use only non-combustible materials
3. Clear all limbs from a radius of 10’ of the chimney
4. Remove all potential fuel sources such as furniture and tools during fire threats
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Zone 1
1. Remove all dead vegetation
2. Do not place shrubs <10’ from the edge of trees in order to prevent the fire from climbing and growing.
3. Provide adequate spacing between trees (details below)
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zone 2
1. Keep grass <4” tall
2. Remove debris when possible
3. Provide a 10’ radius around outbuildings, utilities, and wood piles
4. Provide adequate space between trees and shrubs (details below)
Planting distance
<20% Slope:
trees - 10’ apart
shrubs - height x2
20-40% Slope:
trees - 20’ apart
shrubs - height x4
>40% Slope:
trees - 30’ apart
shrubs - height x6
The ladder effect: Fire travels from brush, up trees, and eventually to roofs of homes, spreading faster.
Material Recommendations
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Agave spp.
All plants in areas with high occurrence of fire should be high moisture and low and slow growing.
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Rhododendron spp.
Further, they should create little to no litter so that fire does not spread quickly if it occurs.
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Phlox sublata
Finally, these planting should not contain volatile oils.
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Retaining wall
Slows the spread of the flames.
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Gravel Mulch
Traditional mulch is composed of wood, a highly flammable material.
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Path By house
A non-flammable surface surrounding the house makes it more difficult for flames to access the structure.
Retrofitting Your Home -> Defensible space
Landscape maintenace
A fire would have less fuel to burn through in the after image, and therefore would spread slower.
Existing Deck and Fencing
Eliminate wood fences close to the home and add metal flashing between ledger board and the house. Maintenance is also imperative.
Existing Trees & Shrubs
Adding space between landscape elements helps slow/prevent fire spread and the ladder effect.