Permitting Authorities / City of Northglenn - Building Division
Do you need a permit to replace a roof in Northglenn, CO?
Adopted code
City of Northglenn - Building Division
Yes — a permit is required to replace a roof in Northglenn, CO, issued by City of Northglenn - Building Division. Re-roofing and roof re-cover projects require a building permit. A homeowner doing the work themselves does not need a contractor license, but any hired contractor must be licensed with the city and listed on the permit.
Jurisdiction
City of Northglenn, Colorado
Contact
- url: https://www.northglenn.org/government/departments/building/contractor_license.php
- phone: 303-450-8745
Roofing permit required
Required
Contractor registration required
Required
Registration details
- license: All professional contractors performing work in Northglenn must hold a valid City of Northglenn contractor license (Municipal Code Article 10-18); applications are submitted through the CommunityCore portal.
Permit process note
Re-roofing and roof re-cover projects require a building permit. A homeowner doing the work themselves does not need a contractor license, but any hired contractor must be licensed with the city and listed on the permit.
Adopted code
International Residential Code and International Building Code with City of Northglenn amendments; verify the current adopted edition with the city.
Drip edge
Required — Drip edge is required around entire perimeter of roof.
About drip edgeIce & water shield
Not required — "Ice Barrier Underlayment Required: No" -- IRC Table R301.2(1) as filled in by Sec. 10-8-5(j) of the Northglenn Municipal Code (2021 IRC).
About ice & water barrierMid-roof inspection
Not required — "There may be a mid-roof inspection required, please consult the Building Department when you receive your permit" — not a blanket requirement for standard asphalt shingle re-roofs; the same guide notes "A mid roof inspection may be required" specifically for tile, metal & special roofs.
Impact-resistant roofing
Not required — Article 8 of Chapter 10 of the Northglenn Municipal Code, which adopts the 2021 International Residential Code by reference (Ord. 1799, 2020, as amended by Ord. 1847, 2023), was reviewed in full, including its complete list of local amendments at Section 10-8-5; it amends no provision of IRC Chapter 9 (roof assemblies) and contains no impact-resistance or UL 2218 requirement. The City's International Building Code and International Existing Building Code articles (Sections 10-2-5 and 10-17-5) and its published Residential Re-roofing guide were reviewed on the same basis and likewise impose no impact-resistance requirement.
Wind design criteria
130 mph wind design speed, topographic effects No, windborne debris zone No, Seismic Design Category B, ground snow load 30 psf (IRC Table R301.2(1) as filled in by Sec. 10-8-5(j) of the Northglenn Municipal Code, 2021 IRC). The table's "Special Wind Region" cell prints "B" -- an apparent drafting artifact in the city's own table (the column ordinarily takes Yes/No); quoted as printed.
Roof layer limit / recover
"How many layers of roofing are allowed? All existing layers must be removed." Combined with the re-covering-versus-replacement conditions in the same guide (existing roof water-soaked/deteriorated; existing covering is wood shake, slate, clay, cement, or asbestos-cement tile; two or more existing applications; or asphalt shingles subject to moderate/severe hail exposure), new roof coverings are not to be installed without first removing existing roof coverings -- i.e. full tear-off, no recover.
Deck & sheathing requirements
"The roof sheathing must provide a rigid surface. Repair or replace all boards or sheathing which are warped, cracked or delaminated between supports."
Local roofing hub
Roof permits nearby — Adams County
Related guides
The building permit authority for the City of Northglenn, spanning Adams and Weld counties. Requires a permit for re-roof and roof re-cover projects and requires contractors to be licensed with the city.
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