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Permitting Authorities / Colorado / 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.

Roof code checklist: Unincorporated Logan County, CO

ItemAnswerCode citeSourceVerified
Permit to replace a roofYeslogancountyco.gov2026-07-14
Repair permit thresholdNot published
Layer limit / roof-overPublishedR907.3logancountyco.gov2026-08-03
Deck & sheathingNot published
Drip edgeNot published
Ice & water shieldYesR905.2.7.1logancountyco.gov2026-08-03
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaPublishedlogancountyco.gov2026-08-03
Adopted codePublishedlogancountyco.gov2026-07-14
Contractor license / registrationNologancountyco.gov2026-08-03
Sales & use taxPublishedtax.colorado.gov2026-08-27

Each row comes from the sourced record on this page; full wording is in the table below. "Not published" means no official source for that item was found when the record was last verified.

Jurisdiction
Logan County, Colorado (unincorporated)
Jurisdiction type
county
Address
Sterling, CO
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 barrier
Wind 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.

Roof permits nearby: Logan County

Fleming, CORoof permit Iliff, CORoof permit Peetz, CORoof permit Sterling, CORoof permit Roofing in ColoradoState hub

Related guides

Denver-Metro Roofing Permits Filing a Hail Insurance Claim Colorado Hail Season Prep Hiring a Contractor Hail-Belt Rules by State

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.

Hail reports near the center of Logan County, CO

Reports, last 24 months
11
Largest, last 24 months
2.50 in Jun 24, 2026
Most recent
Sep 5, 2026 1.75 in
Reports, last 5 years
29
5 most recent reports, last 5 years
DateHail sizeDistance
Sep 5, 20261.75 in10 mi SW
Jul 3, 20261.25 in8 mi SW
Jul 3, 20261.25 in2 mi NNE
Jun 30, 20261.00 in9 mi WSW
Jun 24, 20262.50 in9 mi ENE

Source: NOAA Storm Prediction Center severe weather database and daily storm reports (reports since the start of the current year are preliminary), within 10 miles of the center of Logan County, CO. Data through Oct 7, 2026, not updated since. A report is an observation, not a damage record.

Working an insurance claim in Unincorporated Logan County, CO? Everything on this page (drip edge, ice & water shield, inspections, Class 4 rules) formatted as a claim-ready evidence pack: verbatim ordinance quotes, code section cites, verification dates, and official source links, ready to attach to a supplement. See a real sample pack (PDF, 4 pages, free).

Code items like ice & water shield are what adjusters ask you to document.

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Sources

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Roofing questions: Unincorporated Logan County, CO

Do you need a permit to replace a roof in Unincorporated Logan County, CO?

Yes, a permit is required to replace a roof in Unincorporated Logan County, CO.

Is ice & water shield required in Unincorporated Logan County, CO?

Yes. 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."

Can you roof over an existing roof in Unincorporated Logan County, CO?

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."

Do roofing contractors need a license or registration in Unincorporated Logan County, CO?

No.

What building code does Unincorporated Logan County, CO use?

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.