Permitting Authorities / Logan County Planning and Zoning Department
Do you need a permit to replace a roof in Unincorporated Logan County, CO?
Adopted code
Logan County Planning and Zoning Department
Yes — a permit is required to replace a roof in Unincorporated Logan County, CO, issued by Logan County Planning and Zoning Department. The county requires a permit for all replacement roofing over 100 square feet; new roofs are included with a new structure building permit. One layer of asphalt shingles is allowed with no overlays, meaning a complete tear-off to the exposed deck is required. Ice barrier and flashing are required per the referenced IRC sections. No permit is required for structures 120 square feet or smaller, and electrical and plumbing permits are issued by the State of Colorado rather than the county.
Jurisdiction
Logan County, Colorado (unincorporated)
Contact
- url: https://www.logancountyco.gov/268/Links-Documents
- phone: 970-522-0888
Roofing permit required
Required
Contractor registration required
Not required
Permit process note
The county requires a permit for all replacement roofing over 100 square feet; new roofs are included with a new structure building permit. One layer of asphalt shingles is allowed with no overlays, meaning a complete tear-off to the exposed deck is required. Ice barrier and flashing are required per the referenced IRC sections. No permit is required for structures 120 square feet or smaller, and electrical and plumbing permits are issued by the State of Colorado rather than the county.
Inspection requirements
Logan County does not require roofing inspections but recommends them if issues should arise. Other building inspections are requested at least 24 hours in advance through the Planning and Zoning Department at 970-522-7879; electrical and plumbing inspections are performed by the State of Colorado.
Adopted code
Logan County enforces the 2006 International Building Code, 2006 International Residential Code, 2006 International Mechanical Code, 2006 International Energy Conservation Code, and the 2006 International Fuel and Gas Code.
Ice & water shield
Required — The county's "Logan County Roofing Requirements" page states: "Ice barrier is required for asphalt shingles, metal roof shingles, mineral roll roofing, slate, wood shingles, and wood shakes per R905.2.7.1, R905.3.1, R905.4.3.1, R905.6.3.1, R905.7.3.1, R905.8.3.1. Concrete and clay tile per R905.3.4 and R905.3.5 or manufacturer's instructions."
About ice & water barrierWind design criteria
The county's "Logan County Roofing Requirements" page (page 9 of the on-file Building Permit PDF) states: "Ground/Roof Snow Load = 20 psf" and "Wind Load = 90/40/Exposure C," and separately notes "Asphalt shingles are acceptable for wind resistance using ASTM D7158 (G or H.)"
Roof layer limit / recover
The county's "Logan County Roofing Requirements" page states: "One (1) layer of asphalt shingles is allowed per R907.3(4) - NO OVERLAYS, COMPLETE TEAROFF REQUIRED. This means to the exposed deck. No felt or underlayment to remain on roof."
Sales & use tax
3.90% combined (state 2.9% + Logan County 1%), per Colorado Department of Revenue form DR 1002 (rev. 06/19/19), State-Collected Colorado County Sales Tax table. Logan County is unincorporated for this record's jurisdiction, so no municipal layer applies; no RTD/SCFD/RTA district applies (Logan County is on Colorado's northeast plains, outside the Denver metro RTD/SCFD boundary and outside any regional transportation authority). Re-verified 2026-08-27 against the January 2026 edition of Colorado Department of Revenue form DR 1002, read from a rendered image of its tables rather than from extracted text: the state, county and city figures above match that edition exactly. Where the text above names the June 19, 2019 revision of DR 1002, that describes the edition the figure was originally taken from and is not a current citation.
The building permit authority for unincorporated Logan County on Colorado's northeast plains. Requires a permit for all replacement roofing over 100 square feet, enforces the 2006 I-Codes, and does not require roofing inspections.
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