Have Your Home Ignition Zone Prepared for Fire Season

5/16/2022 (Permalink)

What is the Home Ignition Zone?

Home ignition zone was developed by the USDA Forest Service. Due to research USDA Forest Service was able to find out how homes ignite due to the heat in different distances from your home. There are 3 different radiuses from your home in the ignition zone. The zones and some information on helping prevent home fires follows.

Immediate zone

The home and the area 0-5’ from the furthest attached exterior point of the home; defined as a non-combustible area.  Science tells us this is the most important zone to take immediate action on as it is the most vulnerable to embers. START WITH THE HOUSE ITSELF then move into the landscaping section of the Immediate Zone.

• Clean roofs and gutters of dead leaves, debris and pine needles that could catch embers.
• Replace or repair any loose or missing shingles or roof tiles to prevent ember penetration.
• Reduce embers that could pass through vents in the eaves by installing 1/8 inch metal mesh screening.
• Clean debris from exterior attic vents and install 1/8 inch metal mesh screening to reduce embers.
• Repair or replace damaged or loose window screens and any broken windows Screen or box-in areas below patios and decks with wire mesh to prevent debris and combustible materials from accumulating.
• Move any flammable material away from wall exteriors – mulch, flammable plants, leaves and needles, firewood piles – anything that can burn. Remove anything stored underneath decks or porches. 

Intermediate zone

5-30’ from the furthest exterior point of the home. Landscaping/hardscaping- employing careful landscaping or creating breaks that can help influence and decrease fire behavior

• Clear vegetation from under large stationary propane tanks.
• Create fuel breaks with driveways, walkways/paths, patios, and decks.
• Keep lawns and native grasses mowed to a height of four inches.
• Remove ladder fuels (vegetation under trees) so a surface fire cannot reach the crowns.  Prune trees up to six to ten feet from the ground; for shorter trees do not exceed 1/3 of the overall tree height.
• Space trees to have a minimum of eighteen feet between crowns with the distance increasing with the percentage of slope.
• Tree placement should be planned to ensure the mature canopy is no closer than ten feet to the edge of the structure.
• Tree and shrubs in this zone should be limited to small clusters of a few each to break up the continuity of the vegetation across the landscape.

Extended zone

30-100 feet, out to 200 feet. Landscaping – the goal here is not to eliminate fire but to interrupt fire’s path and keep flames smaller and on the ground.

• Dispose of heavy accumulations of ground litter/debris.
• Remove dead plant and tree material.
• Remove small conifers growing between mature trees.
• Remove vegetation adjacent to storage sheds or other outbuildings within this area.
• Trees 30 to 60 feet from the home should have at least 12 feet between canopy tops.*
• Trees 60 to 100 feet from the home should have at least 6 feet between the canopy tops.

SERVPRO of North Highlands / Rio Linda hopes that you and your family are disaster free but if a property fire does affect you, we are ready to help. For all of your fire, smoke, and other cleaning and restoration needs call us at (916) 991-1522. We have 24/7 emergency services because we know a fire never works with in your schedule.

References: National Fire Protection Association