Illinois, Clark County Roofing Permit Regulations and County Ordinances for Unincorporated Areas
Roofing Permit Requirements in Clark County, Illinois
In Illinois, building codes and permit requirements are primarily managed at the local level. Clark County does not have a centralized county-wide building department that enforces a uniform building code for all unincorporated areas. Consequently, there is no single county-level roofing permit requirement that applies to every property in unincorporated Clark County.
Because regulations vary significantly by jurisdiction, property owners in unincorporated areas should take the following steps:
- Contact Local Authorities: Reach out to the Clark County government offices or the nearest municipality to inquire if they have adopted any specific building codes or ordinances that require permits for roofing work in your specific location.
- Verify Licensing: Regardless of whether a local permit is required, Illinois law mandates that professional roofing contractors must hold a valid Limited or Unlimited Roofing License issued by the Illinois Department of Financial and Professional Regulation.
- Check for Other Requirements: Even if a building permit is not required, you should check with your homeowner's insurance provider, as they may have specific requirements for roof repairs or replacements to maintain coverage or warranty validity.
Resources to Learn More
Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Illinois, including Clark County.
Illinois Roofing Legislation, Codes, and Guidelines
State-Level Building Codes and Legislation for Roofing in Illinois
As of January 1, 2025, Illinois has implemented a statewide baseline building code requirement pursuant to Public Act 103-0510, which amended the Capital Development Board Act. This legislation mandates that all municipalities and counties in Illinois must adopt and enforce building codes that meet or exceed the minimum structural requirements of the International Code Council (ICC) standards, specifically the International Building Code (IBC) and the International Residential Code (IRC). Prior to this, Illinois did not have a unified statewide building code, and regulations were determined entirely at the local municipal or county level.
While the state now requires a baseline, local jurisdictions retain the authority to adopt their own specific editions (such as the 2018, 2021, or 2024 editions) and implement local amendments, provided those amendments do not reduce the structural requirements below the state-mandated baseline. Consequently, specific roofing requirements—such as those for ice and water shields, ventilation, and shingle layering—can still vary significantly between different cities, villages, and counties. Property owners and contractors must consult their local Authority Having Jurisdiction (AHJ) to confirm the specific code edition and local amendments applicable to their project.
Primary State Agency
The Illinois Capital Development Board (CDB) is the primary state agency responsible for the administration of the state's building code framework. Under the Capital Development Board Act (20 ILCS 3105), the CDB is tasked with identifying and publishing local building codes and ensuring that municipalities and counties comply with the requirement to report their adopted codes and amendments to the state.
Resources to Learn More