The Roofing Book

Permitting Authorities / City of Fort Collins - Building Services

Do you need a permit to replace a roof in Fort Collins, CO?

Adopted code

City of Fort Collins - Building Services

Yes — a permit is required to replace a roof in Fort Collins, CO, issued by City of Fort Collins - Building Services. Roofing requires a building permit. Roofing contractors must hold a Fort Collins specialized trade contractor license, which requires passing the ICC roofing exam and providing proof of liability insurance.

Jurisdiction
City of Fort Collins, Colorado
Jurisdiction type
city
Address
Fort Collins, CO
Contact
  • url: https://www.fortcollins.gov/Business/Building-and-Development
Permit portal
Permit portal
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • license: City of Fort Collins specialized trade contractor license (roofing) via the ICC roofing exam
  • insurance: proof of general liability insurance required
Permit process note
Roofing requires a building permit. Roofing contractors must hold a Fort Collins specialized trade contractor license, which requires passing the ICC roofing exam and providing proof of liability insurance.
Adopted code
International Residential Code and International Building Code with City of Fort Collins amendments; verify the current adopted edition with the city.
Drip edge
Required — Not locally amended: Fort Collins' 2024 IRC local amendments document (which amends multiple Chapter 9 Roof Assemblies sections, e.g. adding R905.2.4.2) does not modify or delete R905.2.8.5, so the base 2024 IRC drip-edge requirement applies unamended in Fort Collins. About drip edge
Ice & water shield
Required — 2024 IRC R905.1.2 (unamended, adopted by City of Fort Collins): ice barrier required where Table R301.2 designates it (Fort Collins is designated "Required"); barrier must extend from the lowest roof edge to a point not less than 24 in. inside the exterior wall line (36 in. measured along the slope on roofs pitched 8:12 or greater). About ice & water barrier
Impact-resistant roofing
Required — 2024 IRC local amendment adds Section R905.2.4.2: "Asphalt shingles shall be Class 4 impact resistant, tested in accordance with UL 2218, and installed in accordance with the manufacturer's installation instructions." Applies to re-roofs via R908.1. Exceptions allow non-Class-4 replacement only when matching color/style Class 4 shingles are unavailable, or for repairs not exceeding 49% of roof area (or additions not exceeding 50% of original building size).
Repair permit threshold
Roofing repair or replacement work not exceeding one square (100 square feet) of covering per building is exempt from permit (2024 IRC Section R105.2, Work exempt from permit, as adopted/amended by the City of Fort Collins).

Local roofing hub

Roofing in Fort Collins, ColoradoCity hub

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The building permit authority for the City of Fort Collins in Larimer County. Issues roofing permits and licenses roofing contractors under its specialized trade contractor program.

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Sources

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Roofing questions — Fort Collins, CO

Do you need a permit to replace a roof in Fort Collins, CO?

Required. Roofing repair or replacement work not exceeding one square (100 square feet) of covering per building is exempt from permit (2024 IRC Section R105.2, Work exempt from permit, as adopted/amended by the City of Fort Collins).

Is ice & water shield required in Fort Collins, CO?

Required — 2024 IRC R905.1.2 (unamended, adopted by City of Fort Collins): ice barrier required where Table R301.2 designates it (Fort Collins is designated "Required"); barrier must extend from the lowest roof edge to a point not less than 24 in. inside the exterior wall line (36 in. measured along the slope on roofs pitched 8:12 or greater)..

Is drip edge required?

Required — Not locally amended: Fort Collins' 2024 IRC local amendments document (which amends multiple Chapter 9 Roof Assemblies sections, e.g. adding R905.2.4.2) does not modify or delete R905.2.8.5, so the base 2024 IRC drip-edge requirement applies unamended in Fort Collins..

Do roofing contractors need a license or registration in Fort Collins, CO?

Required. City of Fort Collins specialized trade contractor license (roofing) via the ICC roofing exam.

What building code does Fort Collins, CO use?

International Residential Code and International Building Code with City of Fort Collins amendments; verify the current adopted edition with the city.