Town of Superior Roofing Codes: Permits, Inspections, and Requirements
Adopted building and energy codes, permit rules, and roofing requirements for Town of Superior, Boulder County. Rows below reflect our reading of the jurisdiction's own published sources, linked at the bottom of the page.
Town of Superior roofing code requirements
- What this jurisdiction requires
- 2024 IBC and 2024 IRC
- What this jurisdiction requires
- 2024 Metro Cohort Model Code, based on the 2024 IECC
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- Class A
- What this jurisdiction requires
- Class A
- What this jurisdiction requires
- Class A
- What this jurisdiction requires
- 90 MPH
- What this jurisdiction requires
- ASTM D7158, Class G or H per the town's supplemental roof guidance
- What this jurisdiction requires
- 110 MPH manufacturer warranty
- What this jurisdiction requires
- No. The contractor supplies ladders for midroof and final inspections
- What this jurisdiction requires
- Required
- What this jurisdiction requires
- 2 layers with structural engineer letter
- What this jurisdiction requires
- One layer, 2 layers with structural engineers letter
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- Per code minimum
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- 1×2 - 2×4 reccomended
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- 15# - >4:12 2 layers of 15#
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- Both
- What this jurisdiction requires
- Ice and water
- What this jurisdiction requires
- Ice and water under metal
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- No
- What this jurisdiction requires
- Yes
- What this jurisdiction requires
- Yes - per IRC 806.2
- What this jurisdiction requires
- Yes
| Requirement | What this jurisdiction requires |
|---|---|
| Current building code | 2024 IBC and 2024 IRC |
| Current energy code | 2024 Metro Cohort Model Code, based on the 2024 IECC |
| Building permit required | Yes |
| Roof system fire rating (residential) | Class A |
| Roof system fire rating (commercial) | Class A |
| Roof system fire rating (multi-family) | Class A |
| Minimum wind speed rating for asphalt shingles | 90 MPH |
| ASTM standard for wind rating | ASTM D7158, Class G or H per the town's supplemental roof guidance |
| Requires a manufacturer wind warranty | 110 MPH manufacturer warranty |
| Inspectors carry ladders for the final | No. The contractor supplies ladders for midroof and final inspections |
| Requires midroof (in progress) inspection | Required |
| Maximum layers of asphalt shingles permitted | 2 layers with structural engineer letter |
| Maximum layers of flat roof material permitted | One layer, 2 layers with structural engineers letter |
| Requires solid sheeting over spaced decking | Yes |
| Sheeting gap requirement | Per code minimum |
| Requires drip edge | Yes |
| Minimum drip edge size | 1×2 - 2×4 reccomended |
| Requires rake / gable metal edging | Yes |
| Self adhering underlayment (ice and water shield) | Yes |
| Underlayment required 4:12 and above | 15# - >4:12 2 layers of 15# |
| Rolled roofing allowed on low slope over living space | Yes |
| Type of valleys allowed | Both |
| Valley material required for closed valleys | Ice and water |
| Valley material required for open valleys | Ice and water under metal |
| Kick-out required on step flashing | Yes |
| Minimum curb height requirement | No |
| Requires ridge cap | Yes |
| Requires ventilation to meet code | Yes - per IRC 806.2 |
| Requires soffit / eave vents | Yes |
Last checked September 2, 2026. This reflects published sources at that date, not an official ruling. Code adoptions change, so confirm with the Town of Superior building department before you pull a permit.
What Town of Superior requires, in plain language
Town of Superior builds to the 2024 IBC and 2024 IRC. That edition, not the newest code published nationally, is the rulebook an inspector in Boulder County holds your roof to. Energy work on the same permit follows the 2024 Metro Cohort Model Code, based on the 2024 IECC.
Layer limit in Town of Superior: 2 layers with structural engineer letter. This is the line item that moves a bid the most. If your existing roof is already at the limit, the deck gets stripped before new material goes down, and the labor plus dump fees belong in the written price. Flat roof sections are capped at One layer, 2 layers with structural engineers letter.
Wind is what Town of Superior tests shingles against. Shingles need a 90 MPH rating. Rating is proven under ASTM D7158, Class G or H per the town's supplemental roof guidance. Manufacturer wind warranty: 110 MPH manufacturer warranty.
Underlayment and edge metal are where roofs fail inspection. Ice and water shield: Yes. On 4:12 and steeper: 15# - >4:12 2 layers of 15#. Drip edge: Yes. Minimum drip edge size 1×2 - 2×4 reccomended.
Superior has adopted the 2024 International Codes and the 2024 Metro Cohort Model Code. The town publishes supplemental roof guidance that requires a midroof inspection, requires the contractor to supply ladders, and treats Superior as a high wind region for shingle selection. Permitting runs through a contracted building department portal.
Installation details above come from our building department field survey for Town of Superior, last updated 1/3/19. Code editions and contacts are refreshed from the department directly. Always confirm the details on your permit before work starts, since departments amend requirements on their own schedule.
Sources
- https://www.superiorcolorado.gov/Government/Departments/Planning-Building
- https://www.superiorcolorado.gov/Government/Departments/Planning-Building/Building-Codes-and-Zoning-Regulations
These links go straight to the jurisdiction, so you always have the real-time source. Adoptions and amendments change on their schedule, not ours. Always confirm before permitting.
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Last checked September 2, 2026. This is our best read of published sources, not an official ruling. Confirm with the Town of Superior building department before you pull a permit.