The Roofing Book

Permitting Authorities / Colorado / 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.

Roof code checklist: Hudson, CO

ItemAnswerCode citeSourceVerified
Permit to replace a roofYeshudsonco.gov2026-10-06
Repair permit thresholdNot published
Layer limit / roof-overPublishedR908.3.1.1hudsonco.gov2026-10-06
Deck & sheathingNot published
Drip edgeYesR905.2.8.5hudsonco.gov2026-10-06
Ice & water shieldYesR905.1.2hudsonco.gov2026-10-06
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNolibrary.municode.com2026-07-31
Wind design criteriaPublishedhudsonco.gov2026-10-06
Adopted codePublishedhudsonco.gov2026-07-16
Contractor license / registrationYeshudsonco.gov2026-10-06
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
Town of Hudson, Colorado
Jurisdiction type
city
Address
50 Beech St, Hudson, CO 80642
Contact
  • url: https://hudsonco.gov/166/Building-Permits-Inspections
  • phone: 970-305-3161
Permit portal
Permit portal
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 edge
Ice & 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 barrier
Impact-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 nails
Sales & 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

Roofing in Hudson, ColoradoCity hub

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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 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.

Hail reports near Hudson, CO

Reports, last 24 months
3
Largest, last 24 months
1.00 in Jul 24, 2025
Most recent
Jul 24, 2025 1.00 in
Reports, last 5 years
8
5 most recent reports, last 5 years
DateHail sizeDistance
Jul 24, 20251.00 in3 mi E
Apr 24, 20251.00 in5 mi W
Apr 24, 20250.88 in6 mi NW
May 30, 20241.25 in9 mi SSW
May 9, 20231.75 in9 mi SSW

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 Hudson, CO (Census point). Data through Oct 7, 2026, not updated since. A report is an observation, not a damage record.

Working an insurance claim in Hudson, 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 drip edge and ice & water shield are what adjusters ask you to document.

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Sources

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Roofing questions: Hudson, CO

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

Yes, a permit is required to replace a roof in Hudson, CO.

Is ice & water shield required in Hudson, CO?

Yes. 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."

Is drip edge required in Hudson, CO?

Yes. 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.

Can you roof over an existing roof in Hudson, CO?

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)"

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

Yes. 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.

What building code does Hudson, CO use?

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.