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A wildfire burning through brush close to a rural house while sprinklers spray water nearby

Weather threats · Wildfires

Make your house a hard target for embers

Most homes lost to wildfire aren't overrun by a wall of flame — they catch fire from windblown embers landing in gutters, vents, and mulch, sometimes long after the main fire front has passed. That's good news, because much of the risk is in things you can fix. This guide covers the house, the yard, the smoke, and the evacuation.

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0–5 ft
Zone around the house to keep free of anything that burns
1/8 in.
Metal mesh size commonly recommended for vents
1+ mile
Distance embers can travel ahead of a fire
100 ft
Typical outer edge of the home ignition zone

30-second readiness check

Could your household handle a fire siege week?

Five quick questions covering smoke, alerts, and a power shutoff — the parts of fire season that reach far beyond the flames.

Question 1 of 5 Could you keep one room's air clean through a week of heavy smoke?

Get it before the storm

Everything this guide recommends, in one place. Details on each are further down the page.

  1. 1
    Master Flame Class A Fire Retardant Spray
    Check price →
  2. 2
    Outage backup Champion 9,000W Tri-Fuel Inverter Generator
    Check price →
  3. 3
    Clean-room pick Coway AP-1512HH HEPA Air Purifier
    Check price →
  4. 4
    3M Aura N95 Particulate Respirator
    Check price →
  5. 5
    Jackery Explorer 1000 v2
    Check price →
  6. 6
    Midland ER310 Emergency Weather Radio
    Check price →
  7. 7
    Anker 737 Power Bank (24,000mAh)
    Check price →

01Understand how houses actually catch fire

Research by fire scientists and groups like NFPA points to the same conclusion — the condition of the house and the few feet around it matter more than how close the forest is. A wildfire ignites homes in three ways.

Embers

Burning bits carried by wind that land on or in the house. They cause most home ignitions and can arrive well before and after the flames.

Radiant heat

Intense heat from nearby burning plants, sheds, or neighbouring houses can crack windows and ignite siding without direct contact.

Direct flame

Fire burning right up to the house through dry grass, mulch, or shrubs. Clearing the first few feet largely removes this path.

02Work the yard from the house outward

The home ignition zone is usually described in three rings. Start with the one closest to the walls — it gives the biggest return for the least effort. On steep slopes or in windy areas, the outer zone may need to extend further.

ZoneDistance from houseMain goal
Immediate0–5 feetNothing that burns — gravel, pavers, or bare soil instead of mulch and plants
Intermediate5–30 feetBreak up fuel so fire can't travel — spaced, well-watered plants and mowed grass
Extended30–100 feetThin trees and brush, remove dead material, and keep fire low to the ground
Local fire codes may set specific requirements. Check with your fire department or state forestry agency.
  • Clear leaves and needles from roofs, gutters, and under decks
  • Swap wood mulch for gravel or rock within 5 feet of the house
  • Move firewood piles and propane tanks at least 30 feet away
  • Prune tree limbs so they're well clear of the roof and chimney
  • Remove lower branches so ground fire can't climb into trees
  • Store outdoor cushions, doormats, and brooms inside on red-flag days

03Close the gaps embers get through

Embers find the smallest openings. Sealing them is mostly a matter of inexpensive materials and a weekend of work, and it complements the yard work outside.

  1. Screen every vent

    Cover attic, soffit, and crawlspace vents with noncombustible metal mesh (1/8 inch is common guidance), or replace them with ember-resistant vents.

  2. Guard the gutters

    Clean them often during fire season. Metal gutter guards help keep debris out, but still need checking.

  3. Look at the roof

    A Class A rated roof covering resists embers best. Seal gaps at roof edges and ridge caps where embers can lodge.

  4. Mind the deck

    Clear the space underneath and keep it free of stored items. Enclosing or screening the underside keeps embers and debris out.

  5. Seal the garage door

    Weatherstripping at the bottom and sides of the garage door blocks a common ember entry point.

  6. Upgrade windows over time

    Dual-pane windows with tempered glass hold up better to heat than single-pane glass.

Extra protection for the house

Insurance guide →

Master Flame Class A Fire Retardant Spray

A retardant spray for treating wood and fabric surfaces; follow the label for coverage and how often to reapply.

Check price on Amazon

04Protect your lungs on smoke days

Smoke can travel hundreds of miles, so even homes far from the fire can face poor air for days. Fine particles are the main concern, especially for children, older adults, and people with heart or lung conditions.

  1. Check the air quality

    Use AirNow.gov for local readings and forecasts, and plan outdoor time around them.

  2. Set up a clean room

    Pick one room with few windows, close it up, and run a properly sized HEPA purifier there — especially for sleeping.

  3. Keep smoke out of the house

    Close windows and doors, and set your HVAC to recirculate. A higher-efficiency filter (MERV 13 if your system can handle it) helps.

  4. Don't add indoor pollution

    Avoid frying, candles, and vacuuming without a HEPA filter on heavy smoke days.

Clean-air basics

Emergency kit guide →

3M Aura N95 Particulate Respirator

A NIOSH-approved N95 to keep in each go-bag and car for trips outside when the air is bad.

Check price on Amazon

05Be ready to go — and go early

Fires can move faster than a car on a smoke-choked road. Leaving early, before an order, is the safest choice — especially for anyone who needs extra time or help.

  1. Fire season
    Ready.

    Pack go-bags, save digital copies of documents, know two ways out of your neighborhood, and sign up for local emergency alerts.

  2. Fire nearby
    Set.

    Load the car facing out, close all windows and doors, move flammable furniture away from windows, and keep pets contained.

  3. Order or threat
    Go.

    Leave immediately. Turn on outside lights so firefighters can see the house through smoke, and leave gates unlocked.

  4. Coming back
    Return carefully.

    Wait for the all-clear, watch for hot spots and ash pits, and photograph any damage before cleanup.

Go-bag and outage gear

Backup power guide →

Jackery Explorer 1000 v2

A portable battery for phones, lights, and a small fridge through a planned shutoff, and easy to toss in the car.

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Midland ER310 Emergency Weather Radio

Picks up NOAA alerts and broadcast radio when cell networks are overloaded, with crank and solar charging.

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Anker 737 Power Bank (24,000mAh)

A compact battery for the go-bag, so your phone stays charged on the road.

Check price on Amazon

Free download

The wildfire-ready checklist

A printable plan for the yard, the house, smoke days, and evacuation, laid out so you can work through it before fire season.

  • Zone-by-zone yard cleanup list
  • Ember-proofing walkthrough for the house
  • Clean-room setup for smoke days
  • Ready, Set, Go evacuation plan

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