Roofing Permit (Repair or Replacement) in Havre, Montana
VerifiedRequired for roof repair or replacement within Havre city limits, issued by the City of Havre Public Works Department. Covers sheathing, insulation, ice/water barrier, and ventilation compliance under the 2021 IBC/IRC/IECC.
Verified 2026-07-02 · Source
When you need this permit
- Required for roof repair or replacement
- Applicant must indicate whether the roof requires replacement of or an overlay of structural sheathing; solid sheathing required for asphalt shingles per 2021 IRC Section 905.2.1 (roof sheathing must be 7/16 inch or greater; gaps greater than 1/4 inch require sheathing replacement)
- Applicant must indicate whether any portion of the roof or attic is uninsulated; uninsulated cavities exposed during reroofing must be insulated above or below the sheathing per 2021 IECC Section C504
- Roofing manufacturer's product specifications, data sheet, and installation requirements must be provided; roofing materials must comply with 2021 IBC Chapter 15 and 2021 IRC Chapter 9
- Ice and water barrier required at all eave edges of heated/insulated structures, extending from the lowest roof edge to a point 24 inches inside the exterior wall line, per 2021 IBC Section 1507.1.2 and 2021 IRC Section 905.1.2
- Complete ventilation calculations required per 2021 IRC Section R806: 1 sq ft net free ventilation area per 150 sq ft of attic area for roofs without soffit/cornice/ridge/can vents; 1 sq ft per 300 sq ft of attic area where soffit/cornice or other lower-half venting exists (40-50% of total ventilation in upper attic portion for this method)
Required documents
- Required
Roofing Permit Application
City of Havre Public Works Roofing Permit (repair or replacement) form with sheathing, insulation, and ventilation compliance checklist
- Required
Roofing manufacturer's product specifications, data sheet, and installation requirements
Required for the specific roofing material to be installed
Fee schedule
| Fee type | Amount | Notes |
|---|
Review timeline
~1–3 business days
Typical estimate — confirm current times with the Havre building department
Inspection process
Tips
- This permit references 2021 IRC/IBC/IECC section numbers directly on the application form — Havre is actively enforcing the 2021-edition codes, matching the state's current adopted editions.
- Ice and water barrier and attic ventilation compliance are checked as part of this permit — plan for these even on a straightforward reroof.
Frequently asked questions
- Do I need a permit to replace my roof in Havre?
- Yes. Roof repair or replacement requires a Roofing Permit from the City of Havre Public Works Department, which checks sheathing condition, attic insulation, ice/water barrier, and ventilation compliance under the 2021 IRC/IBC/IECC.
Sources & verification
Verified against official sources. Last reviewed 2026-07-02.
- City of Havre Public Works Department (Building Division) — city-certified for Building permits only; Electrical, Plumbing, and Mechanical permits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau — official building department
- City of Havre Roofing Permit (PDF)
- City of Havre Public Works — Permits
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Havre building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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