Roofing in Greenwood Village, CO

Greenwood Village publishes its own Guidelines for Roofing handout through the Community Development Department, and that handout, not a generic shingle brochure, drives how a Greenwood Village reroof is planned, permitted, and inspected. Apollo Construction reads the current version of that handout before every roofing estimate in the city, because the permit threshold, the underlayment rule, and the inspection sequence are all specific to what the City has published.

The Permit Line Is a Square-Footage Number

The City’s roofing guidelines state that a building permit is required for the new installation or replacement of 100 square feet or more of roof covering. That is a size-based trigger, not a judgment call about whether the job looks small. A single-slope patch under that area may fall outside the rule, but most residential reroofs in Greenwood Village clear it immediately.

The permit application itself has to identify the roofing system being installed: the existing material, the proposed material, the manufacturer, product information, and, when required, the applicable ICC Evaluation Service report. We assemble that product package before the application is filed rather than promising a start date first and a product sheet later.

Added Roof Weight Can Trigger an Engineering Letter

Some material upgrades, such as moving from asphalt shingles to heavier tile, add weight to the roof structure. Where the proposed roofing material increases the roof dead load, the City requires a structural evaluation or truss verification letter, prepared and sealed by a Colorado-licensed design professional, confirming the existing framing can carry the new load. We flag this early in the material conversation so it does not surface as a permit delay after ordering.

Design Criteria and a Wind-Speed Discrepancy Worth Confirming

The City’s roofing guidelines list reference design criteria for roofing systems: a 100 mph three-second gust wind speed (85 mph fastest-mile), Exposure Category C, a 30 psf roof snow load, ice barrier protection at eaves where required, and a 100-year, one-hour rainfall intensity of 3.0 inches per hour for drain sizing. We note this because other Greenwood Village source documents show a different wind figure for general construction, so we confirm the wind design value in force with the Building Division before specifying a roofing system rated for wind resistance.

The ice barrier rule itself is specific: a membrane must be installed at all eaves directly over the roof deck and extend at least 24 inches inside the exterior wall line, with an exemption for detached accessory structures that have no conditioned floor area. We treat that membrane as part of the roofing system on every eave, not as an optional upgrade.

Slope Minimums Set the Material Conversation

The guidelines set slope minimums by material. Standard asphalt shingle installation needs a minimum 4:12 slope, and cedar shakes carry the same 4:12 minimum. Most clay and concrete tile systems need at least 3:12, with slopes between 2½:12 and 3:12 requiring an approved membrane per the manufacturer, and some clay tile products needing as much as 5:12. New flat-roof construction needs at least a ¼ inch per foot slope for positive drainage. We check the existing roof’s slope against the selected material before it is ordered, not after delivery.

Mid-Roof and Final Inspections Are Scheduled Differently

The City’s mid-roof inspection is required for new-construction roofing and is not required for reroofing projects unless the Building Division specifically directs it. For clay and concrete tile or metal panel systems, that inspection is scheduled after underlayment, flashing, and the batten system are installed, and up to 25 percent of the roof covering may already be in place at that point. A final roof inspection is required once the installation is complete, and the guidelines note that roofing work must be completed within six months of permit issuance unless the Building Official approves otherwise.

Inspection access has its own list: a secured extension ladder extending at least 3 feet above the roof edge, an adult 18 or older on site, unlocked gates, secured pets, and work left visible until it is approved. We build those items into the schedule instead of discovering them on inspection morning.

Fasteners, Flashing, and Reused Materials

The guidelines are specific about workmanship details that affect roof longevity. Fasteners must sit flush, never overdriven, underdriven, or installed at an angle, and asphalt shingles generally need a minimum of six corrosion-resistant fasteners per shingle unless the manufacturer’s instructions allow otherwise. Rusted, damaged, or deteriorated flashing, metal edging, collars, drain outlets, and vent flashings may not be reinstalled. Roofing materials also cannot be exposed beyond the manufacturer’s stated weather exposure limits, which matters on a Front Range roof that sees both intense sun and hail.

How We Sequence a Greenwood Village Roofing Project

We start by measuring the roof area against the 100-square-foot permit threshold and confirming whether the new material changes the roof’s dead load. Next comes the product package for the permit application, a slope check against the manufacturer’s minimum, and a wind-design confirmation with the Building Division before ordering. Tear-off exposes the deck, ice barrier and underlayment go down to the City’s eave and slope rules, and flashing details are set before covering begins.

For tile or qualifying metal systems, we schedule the mid-roof inspection once underlayment, flashing, and battens are ready, keeping that assembly visible instead of racing ahead with the full covering. The job closes with the final roof inspection, completed within the City’s six-month work window, and a roof where every fastener, flashing detail, and eave assembly matches what the City’s guidelines describe.

Common Questions

Does every reroof in Greenwood Village need a permit?
A permit is required for the installation or replacement of 100 square feet or more of roof covering. Most residential reroofs cover more area than that, so most projects need a permit; a very small patch may not.

Is ice barrier underlayment always required?
The City’s design criteria call for ice barrier protection at eaves where required, and the specific rule requires the membrane at all eaves, extending at least 24 inches inside the exterior wall line, with an exemption for unconditioned detached accessory structures.

When is a mid-roof inspection needed?
It is required for new-construction roofing. For reroofing projects, the City states it is not required unless the Building Division directs it, so we confirm the requirement for the specific project before scheduling.

What wind speed should a Greenwood Village roof be designed for?
The City’s roofing guidelines list 100 mph as the reference design wind speed. Because other city documents show a different figure for general construction, we confirm the current design value with the Building Division before finalizing a wind-rated roofing system.

Talk to Us About Your Project

Tell us your roof’s current material, its approximate age, the slope, and whether you are considering a heavier material such as tile. We will check the area against the City’s 100-square-foot permit threshold, confirm the slope and wind-design requirements, and build an inspection schedule around the mid-roof and final inspection points your roof type requires.