Natrona County, Wyoming Roofing Permit Regulations and County Ordinances for Unincorporated Areas

Natrona County Building & Safety Jurisdiction

The Natrona County Building & Inspection Department is responsible for administering building codes and issuing permits for all unincorporated areas of Natrona County. This jurisdiction does not include incorporated municipalities such as Casper, Mills, Evansville, Bar Nunn, Midwest, or Edgerton, as these entities manage their own independent permit programs.

Roofing Permit Requirements for Unincorporated Areas

In unincorporated Natrona County, a roofing permit is required for re-roofing projects. Property owners or their contractors must submit a formal Roofing Permit Application to the Building Department for review. The application process typically involves a 7-10 day processing period. Key requirements and considerations include:

Application Submission: Applications can be submitted in person at the Building Department office or through the county's online permit portal.
Material Standards: Roofing materials must meet minimum county requirements, including a 90 mph wind resistance rating and a 90 mph manufacturer's warranty.
Removal of Existing Layers: If an existing roof already has two or more layers of any type of roof covering, all existing layers must be removed before installing new roofing.
Inspections: Required inspections must be scheduled with the Building Department, typically requiring 24-48 hours' notice.
Contractor Licensing: All contractors performing work in the unincorporated county must be currently licensed by Natrona County.
Building Guidelines: Projects must adhere to specific local guidelines, such as roof snow load requirements (30psf for elevations below 6,000 feet and 100psf for 6,000 feet and above) and wind load specifications.

Resources to Learn More

Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Wyoming, including Natrona County.

Wyoming Roofing Legislation, Codes, and Guidelines

State-Level Building Codes and Legislation for Roofing in Wyoming

Wyoming does not have a single, mandatory, statewide building code that applies to all construction. Instead, the state establishes minimum fire and electrical safety standards that apply to specific types of buildings (such as state-owned buildings, schools, and certain public-access buildings) under the authority of the Wyoming Department of Fire Prevention and Electrical Safety. For most residential and commercial construction, building codes are adopted and enforced at the local level by cities and counties.

While there is no statewide mandate for residential roofing codes, many local jurisdictions in Wyoming have adopted the International Code Council (ICC) standards, specifically the International Building Code (IBC) and the International Residential Code (IRC), to regulate roofing materials, installation, and safety. Because local jurisdictions may adopt different editions of these codes or include local amendments to address specific climate challenges like high winds, heavy snow loads, and wildfire risks, it is essential to consult the local building department in the specific jurisdiction where the project is located.

The State of Wyoming, through the Council on Fire Prevention and Electrical Safety, has adopted the 2024 editions of the International Building Code (IBC), International Existing Building Code (IEBC), International Fire Code (IFC), International Mechanical Code (IMC), and International Fuel Gas Code (IFGC) for the specific types of buildings under its regulatory purview.

Primary State Agency

The primary agency responsible for setting and overseeing state-level fire and electrical safety standards is the Wyoming Department of Fire Prevention and Electrical Safety. This department, along with the Council on Fire Prevention and Electrical Safety in Buildings, manages the adoption of the International Codes that apply to state-regulated structures.

Resources to Learn More

Select a City in Natrona County

If your project is located within incorporated city limits, you will likely need to follow municipal ordinances rather than county rules. Select your city below to view local regulations.

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