Permitting Authorities / Town of Windsor - Building Department
Do you need a permit to replace a roof in Windsor, CO?
Adopted code
Town of Windsor - Building Department
Yes — a permit is required to replace a roof in Windsor, CO, issued by Town of Windsor - Building Department. A building permit is required for roofing so the town can conduct the required inspections and confirm the work meets the adopted building code. Building services and inspections are handled by SAFEbuilt (970-686-7511), and all businesses, including roofers, must obtain a Town of Windsor business license.
Jurisdiction
Town of Windsor, Colorado
Contact
- url: https://www.windsorco.gov/137/Building-Permits
- phone: 970-674-2436
Roofing permit required
Required
Permit process note
A building permit is required for roofing so the town can conduct the required inspections and confirm the work meets the adopted building code. Building services and inspections are handled by SAFEbuilt (970-686-7511), and all businesses, including roofers, must obtain a Town of Windsor business license.
Adopted code
2024 International Residential Code, effective January 1, 2026, per the town’s Design Criteria document and its 2024-IRC residential re-roofing guide.
Ice & water shield
Required — "ICE AND WATER SHIELD IS REQUIRED ON ALL ROOFS" (2024 IRC Residential Re-roofing guide, Town of Windsor / SAFEbuilt, published 1.1.2026); corroborated by the Town's separate Design Criteria sheet, which lists under Special Requirements: "Ice and water shield required".
About ice & water barrierMid-roof inspection
Not required — "Mid-roof inspections are NOT required on residential projects" (2024 IRC Residential Re-roofing guide). Exception noted elsewhere in the same guide under Tile, Metal & Special Roofs: "A mid-roof inspection may be required."
Impact-resistant roofing
Not required — "IMPACT RESISTANT SHINGLES ARE NOT REQUIRED EXCEPT IN THE TOWN OF TIMNATH" (2024 IRC Residential Re-roofing guide, Town of Windsor / SAFEbuilt, published 1.1.2026).
Wind design criteria
"WIND SPEED: 115 MPH ULTIMATE" / "SEISMIC: B" (Town of Windsor Design Criteria sheet); corroborated by the 2024 IRC Residential Re-roofing guide: "Asphalt shingles shall be tested in accordance with ASTM D 7158 & meet the classification requirements of table R 905.2.4.1 (1) based on an ultimate design wind speed of 115 mph." Exposure category, topographic effects, special wind region, and windborne debris zone are not stated in either source.
Roof layer limit / recover
"How many layers of roofing are allowed? No more than two (2) layers are allowed upon completion of installation." Section R908.3 Roof Replacement requires full tear-off to the deck where, among other triggers, "the existing roof has two or more applications of any type of roof covering."
Deck & sheathing requirements
"Roof Sheathing Preparation (for complete tear offs): The roof sheathing must provide a rigid surface. Repair or replace all boards or sheathing which are warped, cracked or delaminated between supports."
Sales & use tax
Combined rate varies by county: 7.60% in the Larimer County portion (state 2.9% + Larimer Co 1.05% + town 3.65%) vs 6.55% in the Weld County portion (Weld has no county sales tax). Home-rule, self-collected. A construction/building-materials use tax (3.65%) is due at building permit issuance; presenting the permit to a material supplier exempts the purchase from county sales tax.
Local roofing hub
Roof permits nearby — Weld County
Related guides
The building permit authority for the Town of Windsor, spanning Weld and Larimer counties. Requires a building permit for roofing so required inspections can verify compliance with the adopted building code; building services are provided through SAFEbuilt.
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