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https://www.nist.gov/el/fire-research-division-73300/wildland-urban-interface-fire-73305/hazard-mitigation-methodology-25

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Engineering LaboratoryFire Research Division

## Wildland-Urban Interface Fire Group

-  HAZARD MITIGATION METHODOLOGY (HMM)  Expand or Collapse    -  Why Implement HMM in your Community?  Expand or Collapse      -  Exposures During WUI Fires 
    -  HMM vs Traditional Hazard Mitigation 
    -  WUI Definitions 
    -  Structure Survivability in the WUI 
    -  Community Survivability in the WUI 
    -  Paths forward: Implementing HMM 
    -  Communities already implementing HMM 
  -  How Fire Spreads in the WUI  Expand or Collapse      -  How do Structures Survive WUI Fires? 
    -  Fire Spread Pathways 
    -  Why Exposure Matters, not Parcel Boundary 
    -  Hazard from Fuel Agglomeration 
    -  Community-scale WUI Fire Hazards 
  -  Community-Wide Structure- and Parcel-Level Hardening Actions  Expand or Collapse      -  How Density Impacts Community 
    -  Workflow for HMM Hardening Actions 
    -  Structure Hardening for Embers 
    -  Parcel Hardening for Fire: the Three R’s 
    -  Surrounding Parcel Hazard Mitigation 
    -  Primary Parcel Hazard Mitigation 
    -  Structure Hardening for Fire 
    -  Communities Hardening Actions 
  -  Hardening Actions: Construction Guidance 
  -  Contacts 

# Structure Hardening for Fire

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Targeted structure hardening is performed if flame exposurescannot be avoided and hardening can be effective.

Apply home protective actions against fire when surrounding properties and primary property protective actions are not possible (Table D).

Table B and Table C determine the need and effectiveness of potential structure hardening.

**Remember - Always fully protect structures and property against embers!**

-  **‹** Primary Parcel Hazard Mitigation 
-  Communities Hardening Actions **›** 

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