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Home hardening and wildfire hazard mitigation

What is home hardening?

Home hardening describes steps that can be taken to make a home more resistant to damage from a wildfire, such as using materials for siding and/or roofing that resist ignition during a wildfire, installing fire resistant windows to protect openings, or using attic ventilation devices that help reduce ember intrusion.

Home hardening, along with creating defensible space, decreases the likelihood that a nearby fire will ignite your structure, and it reduces the potential for damage.

Fire hardening makes the community more resistant to the spread of wildfire. By slowing down a fire, it may create additional time and opportunity for emergency responders to protect life and property threatened by the fire.

What is required?

Where adopted by the local municipality's building department, the construction of new one- and two-family dwellings and certain new accessory structures within the locally designated wildfire hazard zones are required to comply with the Oregon Residential Specialty Code (ORSC) Section R327, Wildfire Hazard Mitigation standards.

Access a list of building departments municipalities that have adopted ORSC Section R327 locally.

Voluntary compliance

Home hardening measures intended to reduce potential damage from wildfires may be voluntarily followed for new construction, and when replacing exterior elements of existing construction. These provisions may be followed throughout Oregon; particularly where your existing home is located in an area subject to wildfires, or where you are looking to build in a wildfire-prone area where the R327 provisions have not been adopted locally.

Get more information

Contact the local building department to learn more about local requirements. Search the Local Building Department Directory

Wildfire home hardening guide

This guide includes specific recommendations on how to construct new or retrofit existing components of a home to withstand wildfire. Each section of this guide contains an explanation on how the component is vulnerable to wildfire and what can be done to improve that component.

View the Wildfire Home Hardening Guide

Estimated cost of home hardening

A wide range of variables impact the cost of home hardening and estimating the cost increase from standard prescriptive construction includes selected materials, dwelling size, eave heights, vent type and number, window type and number, and similar customer design considerations.

View the Estimated Cost of Hardening Your Home Guide

Wildfire Hazard Mitigation training

This training video covers construction standards and material compliance requirements for wildfire hazard mitigation or home hardening where the wildfire hazard mitigation provisions of the 2023 ORSC are applicable.

View the wildfire hazard mitigation training video

Where is wildfire hazard mitigation required?

The following municipalities have adopted the ORSC Section R327, Wildfire Hazard Mitigation standards:

  • Ashland
  • Deschutes County
  • Grants Pass
  • Medford
  • Sisters
Check with the local building department to find out where the requirements apply.

For local municipality building departments

A municipality that chooses to adopt the ORSC Section R327, Wildfire Hazard Mitigation standards, locally, must do so by ordinance or through another equivalent local legal process.

Only a municipality that operates a building department may adopt Section R327 locally.

Learn more about the local adoption and commonly asked questions.