Permitting Authorities / Town of Hudson - Building Department
Do you need a permit to replace a roof in Hudson, CO?
Adopted code
Town of Hudson - Building Department
Yes — a permit is required to replace a roof in Hudson, CO, issued by Town of Hudson - Building Department. Repair or replacement of less than one square of shingles does not require a permit; all other roof replacement work does. All roofing material must be removed prior to new application, except that one layer of asphalt shingles may receive one additional layer over it; 3-tab shingles and roof recover over two or more existing layers are not allowed. The permit card must be posted on the house before work begins, and no work may begin until the permit is issued by Town Hall.
Jurisdiction
Town of Hudson, Colorado
Address
50 Beech St, Hudson, CO 80642
Contact
- url: https://hudsonco.gov/166/Building-Permits-Inspections
- phone: 970-305-3161
- email: [email protected]
Roofing permit required
Required
Contractor registration required
Required
Registration details
- license: Roofing contractors must carry $100,000 combined single limit liability insurance and submit a certificate of insurance at the time of permit application, identifying the insurance limits, policy number, insurance company, and effective/expiration dates.
Permit process note
Repair or replacement of less than one square of shingles does not require a permit; all other roof replacement work does. All roofing material must be removed prior to new application, except that one layer of asphalt shingles may receive one additional layer over it; 3-tab shingles and roof recover over two or more existing layers are not allowed. The permit card must be posted on the house before work begins, and no work may begin until the permit is issued by Town Hall.
Inspection requirements
An ice barrier is required per IRC section R905.1.2, with a drip edge per R905.2.8.5. Underlayment must be 1 layer minimum on roofs 4:12 slope or greater, 2 layers on 2:12-4:12 slope, and modified bitumen below 2:12 slope. A mid-roof inspection is required only for commercial roof assemblies. The contractor must provide a secured ladder on site for the inspector (per IRC 109.3 and IBC 110.5), and all debris in the yard, roof, and gutters/downspouts must be cleaned up before calling for inspection.
Adopted code
A building-code update is in progress: the Town is adopting the 2024 ICC codes (including solar and EV-ready codes), with the Town Council process begun in June 2026 and draft 2024 building and fire code amendments published; the town's current roofing regulations were written to the 2018 IRC.
Drip edge
Required — The Town's 2021-22 Roofing Regulations handout's Table R301.2(1) footnote states: "Drip Edge per section R905.2.8.5." Hudson Municipal Code § 18-9 (Amendments to the International Residential Code, reviewed in full for this record, ending cleanly on its own history note) does not delete or modify R905.2.8.5, so the base IRC drip-edge requirement stands as adopted code.
About drip edgeIce & water shield
Required — The Town's 2021-22 Roofing Regulations handout's Table R301.2(1) lists "Ice Barrier Underlayment Required Yes"; footnote: "*Ice Barrier IS REQUIRED per section R905.1.2."
About ice & water barrierImpact-resistant roofing
Not required — Hudson Municipal Code § 18-9 (Amendments to the International Residential Code, 2018 IRC as adopted by Ord. No. 19-13, § 2, 7-3-19) was read in full (~14,600 chars flattened, ending cleanly on its own history note matching that ordinance citation) and contains no UL 2218 or Class 4 impact-resistant-shingle mandate. The Town's own 2021-22 Roofing Regulations handout likewise does not mention impact resistance.
Wind design criteria
The Town's 2021-22 Roofing Regulations handout prints its own Table R301.2(1) Climatic and Geographic Design Criteria: "Ground Snow Load 30 psf" / "Wind Design Speed(mph) 115 / Topographic Effects No" / "Seismic Design Category B". Special wind region and windborne debris zone are not broken out as separate columns in this printed table.
Roof layer limit / recover
The Town's 2021-22 Roofing Regulations handout: "Tear-off: All roofing material shall be removed prior to new application (except one (1) layer of asphalt shingles is allowed to have an additional layer of asphalt shingles applied)." Also: "Roof recover not allowed where the existing roof has two or more applications of any type of roof covering. (R908.3.1.1)"
Fastening requirements
"Fasteners must meet manufacturer instructions and ASTM F1667 for 115 mph ultimate wind exposure C." No fastener count is stated, so the IRC R905.2.6 floor of four per strip shingle applies, with the shingle manufacturer's installation instructions governing above it.
About roofing nailsSales & use tax
6.9% combined (state 2.9% + Weld County 0%, no county sales tax + Town of Hudson 4%). The Town's 4% use tax applies to building materials specifically, the roofing-relevant figure. 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.
Local roofing hub
Roof permits nearby — Weld County
Related guides
The building permit authority for the Town of Hudson, in Weld County. Requires a permit for roof replacement (repair or replacement of less than one square of shingles is exempt), requires roofing contractors to carry minimum liability insurance, and publishes a detailed roofing-regulations handout covering tear-off, underlayment, fasteners, and inspection requirements.
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