Do I Need a Permit to Replace My Roof in Colorado?
Quick Answer
Yes — all roof replacements and re-roofing projects require a permit.
Always Need a Permit
Most jurisdictions require a roofing permit for all roof replacements, whether you're doing a full tear-off or an overlay. The permit ensures proper installation of underlayment, flashing, ice and water shield, and ventilation. Roofing permits are the fastest to obtain — often same-day approval.
The Two-Layer Rule
The IRC/IBC allow a maximum of two roofing layers in most adopting jurisdictions. If your home already has two layers of shingles, a full tear-off is required before installing new roofing. This is a common surprise for homeowners — the inspector will check during the deck inspection.
What Inspectors Check
Two inspections: deck/substrate (after tear-off, verify sheathing condition and replace damaged decking) and final (ice and water shield in valleys and eaves, proper flashing at penetrations and walls, drip edge, adequate ventilation, and correct nailing pattern).
Insurance Claims
If you're replacing your roof due to hail or wind damage, the insurance claim process is separate from the permit. Your roofer will typically handle the permit while you work with your adjuster. Make sure the replacement materials match or exceed what's specified in the insurance scope.
Bottom Line
Yes, always. Roofing permits are fast ($50-$100, often same-day) with two inspections. No reason to skip it.
Permit fees by city in Colorado
Verified from each city’s published fee schedule. Where a city has no separate fee listed for this project, open the city page for the current requirements and amount.
| City | Permit fee | Source |
|---|---|---|
| Arvada | Per Table 18-1 (valuation-based schedule) plus Use TaxVerified | Roofing Permit (Re-Roofing) → |
| Aurora | $254.00Verified | Roofing Permit (Reroof) → |
| Boulder | Per the standard Building Permit Fee schedule (see Residential Building Permit fee tiers)Verified | Roofing Permit (Reroof) → |
| Colorado Springs | $135.00Verified | Roofing Permit (Reroof) → |
| Denver | Per ADMIN 125/138 Table 1 valuation-based scheduleVerified | Roofing Permit (Reroof) → |
| Fort Collins | $85.00Verified | Roofing Permit (Reroof) → |
| Lakewood | $80.00Verified | Roofing Permit (Reroof) → |
| Longmont | Assessed on the actual contract amount of the roofing work, applied against the Primary Fee Schedule's valuation-based Building Permit Fee table (from $27.00 minimum up to $6,448.55 + $4.20 per additional $1,000 over $1,000,000)Verified | Roofing Permit (Reroof) → |
| Thornton | $30.00Verified | Roofing Permit (Reroof) → |
| Westminster | $80.00Verified | Roofing Permit (Reroof) → |