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Denver, CO

Commercial roofing in Denver

Facility First manages commercial roofing in Denver for retail stores, restaurants and offices, from leak calls after a storm to inspections and replacement planning under the 2025 Denver Building Code. Work goes to vetted local roofing providers that hold the City and County of Denver contractor license the roof type requires.

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What is covered in Denver

Most commercial roofing in Denver involves low-slope membrane roofs on shopping centers, office buildings and freestanding stores and restaurants, along with steep-slope shingle, tile and metal roofs on smaller buildings. Many of these roofs carry heating and cooling units, exhaust fans and skylights that add penetrations to maintain. Under a Facility First program, commercial roofing in Denver covers:

Leak response and temporary protection of ceilings, stock and fixtures
Membrane, seam and flashing repair on TPO, EPDM, built-up and modified bitumen roofs
Roof inspections with written condition reports and photos by roof area
Drain, scupper, gutter and downspout clearing
Sealing at rooftop equipment curbs, pipe penetrations and skylights
Roof coatings, and replacement planning that accounts for energy code and Green Buildings Ordinance requirements

Licensing and permits in Denver

Community Planning and Development (CPD) licenses contractors in Denver, and Denver does not accept or reciprocate contractor licenses from other counties or states. The Denver code requires a license for any work that needs a permit. The City’s Roofing Guide and Checklist states that membrane roofs on low-slope areas must be installed by a contractor holding a D-Roof Covering/Waterproofing license.

Requirement	Agency	Level	Official source
Contractor license for work that requires a permit; Denver does not reciprocate licenses from other jurisdictions	City and County of Denver, Community Planning and Development	City	Denver: Contractor Licensing; 2025 Denver Building Code, Section 121.2
D-Roof Covering/Waterproofing license for membrane roofs on low-slope areas	Community Planning and Development	City	Denver: Roofing Guide and Checklist
Roof permit, applied for separately from the general construction permit; required for repairs over 10 percent of the roof area or two roof squares, whichever is smaller (5 percent for buildings of 25,000 square feet or more), and for every new roof penetration	Community Planning and Development	City	Denver: Roofing Guide and Checklist; Denver: Quick Permits
Plan review instead of a quick permit for roofs on commercial buildings of 25,000 square feet or more, which fall under the Green Buildings Ordinance	Community Planning and Development	City	Denver: Green Buildings Ordinance
Landmark Preservation review before roof permits on individual landmarks or buildings in a historic district	Community Planning and Development, Landmark Preservation	City	Denver: Quick Permits

Roof coatings do not require a permit under the City’s roofing guide. Commercial and low-slope roofs receive a pre-inspection and a final inspection, with a mid-roof inspection when the inspector calls for one. Sites outside the City and County of Denver follow the permit rules of their own city or county.

Codes and local rules

Building code. The 2025 Denver Building Code is made up of Denver amendments to the model codes. The Denver Commercial Building Code amends the 2024 International Building Code, and the Denver Energy Code amends the 2021 International Energy Conservation Code.

Rooftop equipment. Section 1503.6 of the Denver Commercial Building Code requires mechanical equipment placed or reset on a roof to sit on curbs, platforms or legs at least 8 inches above the finished roofing, made watertight. Units of 400 pounds or less may sit on 8-inch legs on the membrane with isolation pads, if the roof warranty is not affected.

Wind. Denver sets its own basic wind speeds by location. For ordinary buildings (Risk Category II), the basic wind speed is 115 mph east of Federal Boulevard, 125 mph between Federal and Sheridan Boulevards and 140 mph between Sheridan Boulevard and Kipling Street. Edge metal and flashing are checked with this in mind.

Reroofing. The roofing guide requires tear-off to the deck where two or more layers of roof covering exist, and new roofs must comply with the Denver Energy Code. Asbestos inspection and removal follow Colorado Department of Public Health and Environment requirements.

Green Buildings Ordinance and Energize Denver. The Green Buildings Ordinance, in effect since November 2, 2018, applies to roof permits on existing buildings of 25,000 square feet or more. Energize Denver, the City’s building performance policy, applies to commercial buildings of 5,000 square feet and larger, so roof insulation chosen at replacement is reviewed with the owner’s energy plans.

Preventive maintenance schedule for roofing

Most commercial roof leaks start with something a scheduled visit would catch: a blocked drain, loose edge metal or an open seam at a rooftop unit. In Denver, storm season and winter freeze cycles both test those weak points. Planned visits reduce emergency calls, extend roof life and build the inspection record that warranties and insurers ask for.

Task	Recommended frequency	Basis
Full roof inspection by a qualified roofing provider, with photos	At least twice a year, ideally spring and fall	FEMA P-2181 Fact Sheet 3.3.2 (IBHS calls for at least once a year and before storm season)
Inspection after high winds, hail or other major storms	After each event	FEMA P-2181 Fact Sheet 3.3.2; IBHS
Clear interior drains, gutters, scuppers and downspouts	At each scheduled inspection	IBHS
Check perimeter edge metal and flashing for looseness or gaps	At each scheduled inspection	IBHS
Check rooftop equipment curbs, straps and fasteners; reseal disturbed flashing	At each scheduled inspection and after equipment service	IBHS; Denver Commercial Building Code 1503.6
Look for ponding water and debris around equipment	At each scheduled inspection	IBHS
Reseal minor seam, flashing and penetration defects found on inspection	As found, within the approval limit	Facility First program default, adjusted per site
Roof condition report with remaining-life notes for capital planning	Annually	Facility First program default, adjusted per site

The authority having jurisdiction, the manufacturer and the property’s insurer can require more frequent service, and each location’s schedule is set in its program and recorded on every visit.

Seasonal and local conditions

Storm season. Wind and hail can dent metal panels, crack skylights and lift edge flashing. Post-storm inspections are scheduled for every location with roof responsibility, and findings are photographed for any insurance claim.
Wind exposure toward the foothills. Design wind speeds rise west of Federal Boulevard, so edge securement and equipment anchoring get closer attention at sites in those zones.
Winter. Snow and freezing temperatures slow membrane work, since adhesives and sealants have manufacturer temperature limits. Larger repairs are planned for warmer months, with temporary repairs until conditions allow a permanent one.
Rooftop equipment changes. HVAC replacements often disturb curbs and flashing, so roof checks follow equipment work.

Where Facility First works in Denver

Facility First manages roofing for locations across the Denver area’s main retail and business districts, including Cherry Creek Shopping Center, Cherry Creek North, Larimer Square, and Union Station and LoDo, along with suburban centers such as Park Meadows and the Denver Tech Center. Sites outside the City and County of Denver follow the licensing and permit rules of their own city or county. Buildings range from mall tenant spaces and downtown storefronts in older masonry buildings to freestanding stores and suburban office parks, and roof responsibility differs by lease. Typical clients are retail and luxury retail, restaurants and corporate offices.

How roofing requests are handled

Request. The location or facilities team submits the request through the platform or by phone, with photos of the ceiling, the leak point and the roof where safe.
Triage. Facility First confirms scope, priority, roof access, landlord rules and any manufacturer warranty.
Dispatch. A vetted Denver roofing provider with the right City license receives the work order and pulls any roof permit.
Photo close-out. The provider documents conditions before and after, with notes on the cause and the area repaired.
Verification and invoice. The work is checked against the request and invoiced in one format, with the record stored against the location.

Routine repairs proceed within the approval limits the client sets. Anything above a limit, including replacement, is quoted for approval first.

Security by McCray in Denver

Where storm damage or an open work area leaves a location unsecured, McCray can post an officer until the work is complete. Security services in Denver

Frequently asked questions

Does Denver require a license for commercial roofing work?

Yes. Denver requires a City contractor license for work that needs a permit, and it does not accept licenses from other jurisdictions. The City’s roofing guide states that membrane roofs on low-slope areas must be installed by a D-Roof Covering/Waterproofing licensed contractor.

When does a commercial roof repair in Denver need a permit?

A permit is needed for repairs over 10 percent of the roof area or two roof squares, whichever is smaller, and for every new roof penetration. For buildings of 25,000 square feet or more, the threshold is 5 percent or two squares. Roof coatings do not need a permit.

Which building code applies to roof work in Denver?

The 2025 Denver Building Code, which amends the 2024 International Building Code. It adds local rules such as minimum 8-inch curbs for rooftop equipment and Denver-specific wind speeds.

How often should a commercial roof in Denver be inspected?

FEMA guidance calls for inspections at least twice a year, ideally spring and fall, and after high wind events. IBHS also recommends checks after major storms, and Denver programs add checks after hail and after rooftop equipment work.

Sources

Checked November 2026.

One roofing record for every Denver location, from storm calls to replacement plans.