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Permitting Authorities / Colorado / Town of Bow Mar Building Department

Do you need a permit to replace a roof in Bow Mar, CO?

Adopted code

Town of Bow Mar Building Department

Yes, a permit is required to replace a roof in Bow Mar, CO, issued by Town of Bow Mar Building Department. The Town's Building Permits page states: "Building Permits are required on interior and exterior work on your property. Please submit your permit application to the Building Department directly, as this is handled by Columbine Valley," at 2 Middlefield Road, Columbine Valley, CO 80123 (303-795-2063). Building/Design work is a 2-step process per the Building Procedures page: Step 1 is Design Review Board (DRB) approval for aesthetic harmony, exterior materials/colors, and setback/height/lot coverage conformance (required documents include a Roof Plan Drawing and Exterior Elevation Drawings); Step 2 is issuance of the appropriate building permit by the Town. Listed permit types include a Demolition Permit, a Non-Structural Building Permit (interior work not requiring plan review, plus some exterior items such as fences and AC units), and a Roofing Permit: "A Roofing Permit Application is required when a new roof or roof repairs are necessary. If your roofing project includes structural changes to your roof, the Building Permit Application with Plan Review is also required." Fees are based on total project valuation per a published fee table (e.g., $1,530 base for a $50,000 project) plus a 1% Transportation Utility Fee on projects of $10,000 and above. Building Permits are valid for 360 days; the Building Commissioner may assess monetary penalties if construction is not complete within that period. General project questions go to Bonnie Zapata-Diaz, Building Department Coordinator (303-795-1434, columbinevalley.org); project-specific/inspection questions go to Terry Weis, Bow Mar Building Inspector (303-522-3331), who "reviews all plans and conducts all inspections.".

Roof code checklist: Bow Mar, CO

ItemAnswerCode citeSourceVerified
Permit to replace a roofYestownofbowmar.org2026-10-06
Repair permit thresholdNot published
Layer limit / roof-overPublishedtownofbowmar.org2026-10-06
Deck & sheathingNot published
Drip edgeYesR905.2.8.5townofbowmar.org2026-10-06
Ice & water shieldYeslibrary.municode.com2026-07-31
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNolibrary.municode.com2026-07-31
Wind design criteriaPublishedlibrary.municode.com2026-07-31
Adopted codePublishedtownofbowmar.org2026-10-06
Contractor license / registrationYestownofbowmar.org2026-10-06
Sales & use taxPublishedtownofbowmar.org2026-08-27

Each row comes from the sourced record on this page; full wording is in the table below. "Not published" means no official source for that item was found when the record was last verified.

Jurisdiction
Town of Bow Mar, Colorado
Jurisdiction type
city
Address
2 Middlefield Road, Columbine Valley, CO 80123
Contact
  • url: https://www.townofbowmar.org/building-permits
  • phone: 303-795-2063
  • email: [email protected]
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • license: "Contractors who work on any project requiring a permit must be licensed to work within Bow Mar which is obtained by submitting a License Application." Fee Schedule for Contractor Licensing: General Contractor $160; Plumbing, Mechanical and Roofing $100; Electricians require a State of Colorado electrical license (no separate town fee stated). After July 1st, the fee is cut in half for the remainder of the year.
Permit process note
The Town's Building Permits page states: "Building Permits are required on interior and exterior work on your property. Please submit your permit application to the Building Department directly, as this is handled by Columbine Valley," at 2 Middlefield Road, Columbine Valley, CO 80123 (303-795-2063). Building/Design work is a 2-step process per the Building Procedures page: Step 1 is Design Review Board (DRB) approval for aesthetic harmony, exterior materials/colors, and setback/height/lot coverage conformance (required documents include a Roof Plan Drawing and Exterior Elevation Drawings); Step 2 is issuance of the appropriate building permit by the Town. Listed permit types include a Demolition Permit, a Non-Structural Building Permit (interior work not requiring plan review, plus some exterior items such as fences and AC units), and a Roofing Permit: "A Roofing Permit Application is required when a new roof or roof repairs are necessary. If your roofing project includes structural changes to your roof, the Building Permit Application with Plan Review is also required." Fees are based on total project valuation per a published fee table (e.g., $1,530 base for a $50,000 project) plus a 1% Transportation Utility Fee on projects of $10,000 and above. Building Permits are valid for 360 days; the Building Commissioner may assess monetary penalties if construction is not complete within that period. General project questions go to Bonnie Zapata-Diaz, Building Department Coordinator (303-795-1434, columbinevalley.org); project-specific/inspection questions go to Terry Weis, Bow Mar Building Inspector (303-522-3331), who "reviews all plans and conducts all inspections."
Inspection requirements
Terry Weis, the Bow Mar Building Inspector, "reviews all plans and conducts all inspections." Periodic inspections are made by the Building Inspector during construction to confirm compliance with DRB-approved plans and applicable building codes and Town ordinances. Bow Mar's roofing specifications separately require a mid-roof inspection at 25% of installation. One set of plans for each ongoing project is retained at the Bow Mar Building Department office (2 Middlefield Road, Columbine Valley).
Adopted code
The Town's own Roof Specifications page is titled "Town of Bow Mar 2015 Code Requirements for Residential Roofs" and directs attention to sections R904 (Materials), R905 (Roof Coverings), R906 (Roof Insulation), and R907 (Reroofing) — numbering consistent with the 2015 International Residential Code roofing chapter — plus amended provisions at R905.2.7.1 (ice barrier, 24" minimum from the eave's edge inside the heated wall line for all new tear-offs), R806.2 (roof ventilation, 1 sq ft of net free vent area per 150 sq ft of roof area), and a locally added R905.2.2 drip-edge amendment (minimum 2" overlap, extending 1.5" below sheathing). Maximum layers: 1 for shingles, 2 for flat roofing; shake re-roofs allowed at minimum #1 grade; underlayment #15 up to 6/12 slope and #30 for 7/12 and above, with 2 layers required between 2/12 and 4/12; valleys minimum 18" (90 lb. or metal). The page does not otherwise cite an IBC edition for non-roofing work.
Drip edge
Required — The Town's own Roof Specifications page states: "Eave drip edges shall extend 1 1/2" inch below sheathing and extend back on the roof a minimum of 2 inches. Drip edge shall be mechanically fastened a maximum of 12 inches on center." The codified § 18-9(b) IRC amendments (2021 IRC, Ord. No. 340, 2024) do not separately address R905.2.8.5/drip edge. About drip edge
Ice & water shield
Required — Table R301.2(1) as amended by § 18-9(b)(1) prints "Ice shield underlayment Requires Yes (See R 905.1.2 Ice Barriers)." About ice & water barrier
Impact-resistant roofing
Not required — Bow Mar Municipal Code § 18-9(b), Amendments to the 2021 IRC (Ord. No. 340, §1, 2024), was read in full (20 numbered items, textually exhaustive) and contains no UL 2218, Class 4, or impact-resistance provision anywhere.
Wind design criteria
Table R301.2(1) as amended by Bow Mar Municipal Code § 18-9(b)(1) (2021 IRC, Ord. No. 340, §1, 2024) prints: "Roof snow load 30 psf; Nominal wind speed 110 mph; Ultimate wind speed 140 mph; Frost depth 36 inches; Seismic design category B; Termite Slight to Moderate; Decay None to Slight; Weathering Severe; Winter design temperature 1 degree; Degree heating days 6200; 100-year hourly rainfall 2.67" per hour."
Roof layer limit / recover
The Town's own Roof Specifications page states "1 LAYER SHINGLE. 2 FLAT" as the maximum permitted roof layers. The codified § 18-9(b)(13) amendment to R908.3.1 Roof recover (2021 IRC, Ord. No. 340, 2024) separately adds: "In the case of a partial reroof, the replacement of shingles shall be of the same type and color," without itself restating a numeric layer cap.
Fastening requirements
The Town's Roof Specifications page states a minimum wind rating of "6 nail all, 90 MPH ASTM UL D3161". Six fasteners per shingle exceeds the IRC R905.2.6 floor of four per strip shingle; the ASTM D3161 reference is the shingle's wind-resistance classification, not a fastener standard. About roofing nails
Sales & use tax
No Town-level sales tax exists for Bow Mar — the Town does not appear anywhere in DR1002 (neither the state-collected-towns table nor the home-rule table), and the Town's own page confirms it is funded differently: "Property taxes paid to Arapahoe and Jefferson Counties are distributed to support the government of the Town of Bow Mar... The Town of Bow Mar receives about one-eighth of the property taxes collected by the respective counties." Bow Mar straddles the Arapahoe/Jefferson county line, so the applicable combined SALES tax for materials delivered to a Bow Mar address is simply the state (2.9%) plus whichever county applies to that parcel (Arapahoe County Open Space Tax 0.25%, or Jefferson County 0.50% per DR1002), plus RTD (1.0%) and SCFD (0.1%), which cover both counties — with NO separate Town of Bow Mar sales-tax or use-tax line item, because none exists. Re-verified 2026-08-27 against the January 2026 edition of Colorado Department of Revenue form DR 1002, read from a rendered image of its tables rather than from extracted text: the state, county and city figures above match that edition exactly. Where the text above names the June 19, 2019 revision of DR 1002, that describes the edition the figure was originally taken from and is not a current citation.

Local roofing hub

Roofing in Bow Mar, ColoradoCity hub

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Related guides

Denver-Metro Roofing Permits Filing a Hail Insurance Claim Colorado Hail Season Prep Hiring a Contractor Hail-Belt Rules by State

The building permit authority for the Town of Bow Mar, a small statutory town spanning Arapahoe and Jefferson counties. Bow Mar maintains its own Design Review Board, building code (roofing specifications), and town-employed Building Inspector, but the day-to-day administration of the Building Department — plan review, permit issuance, and the office where applications and checks are submitted — is handled out of the Columbine Valley Town Hall building at 2 Middlefield Road, the same address as the Town of Columbine Valley's own Building Department.

Hail reports near Bow Mar, CO

Reports, last 24 months
18
Largest, last 24 months
1.75 in Jun 1, 2026
Most recent
Aug 14, 2026 1.00 in
Reports, last 5 years
117
5 most recent reports, last 5 years
DateHail sizeDistance
Aug 14, 20261.00 in4 mi ENE
Aug 13, 20261.25 in10 mi ESE
Jun 24, 20261.00 in6 mi W
Jun 24, 20261.00 in3 mi ESE
Jun 8, 20261.00 in8 mi NNW

Source: NOAA Storm Prediction Center severe weather database and daily storm reports (reports since the start of the current year are preliminary), within 10 miles of Bow Mar, CO (Census point). Data through Oct 7, 2026, not updated since. A report is an observation, not a damage record.

Working an insurance claim in Bow Mar, CO? Everything on this page (drip edge, ice & water shield, inspections, Class 4 rules) formatted as a claim-ready evidence pack: verbatim ordinance quotes, code section cites, verification dates, and official source links, ready to attach to a supplement. See a real sample pack (PDF, 4 pages, free).

Code items like drip edge and ice & water shield are what adjusters ask you to document.

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Sources

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Roofing questions: Bow Mar, CO

Do you need a permit to replace a roof in Bow Mar, CO?

Yes, a permit is required to replace a roof in Bow Mar, CO.

Is ice & water shield required in Bow Mar, CO?

Yes. Table R301.2(1) as amended by § 18-9(b)(1) prints "Ice shield underlayment Requires Yes (See R 905.1.2 Ice Barriers)."

Is drip edge required in Bow Mar, CO?

Yes. The Town's own Roof Specifications page states: "Eave drip edges shall extend 1 1/2" inch below sheathing and extend back on the roof a minimum of 2 inches. Drip edge shall be mechanically fastened a maximum of 12 inches on center." The codified § 18-9(b) IRC amendments (2021 IRC, Ord. No. 340, 2024) do not separately address R905.2.8.5/drip edge.

Can you roof over an existing roof in Bow Mar, CO?

The Town's own Roof Specifications page states "1 LAYER SHINGLE. 2 FLAT" as the maximum permitted roof layers. The codified § 18-9(b)(13) amendment to R908.3.1 Roof recover (2021 IRC, Ord. No. 340, 2024) separately adds: "In the case of a partial reroof, the replacement of shingles shall be of the same type and color," without itself restating a numeric layer cap.

Do roofing contractors need a license or registration in Bow Mar, CO?

Yes. "Contractors who work on any project requiring a permit must be licensed to work within Bow Mar which is obtained by submitting a License Application." Fee Schedule for Contractor Licensing: General Contractor $160; Plumbing, Mechanical and Roofing $100; Electricians require a State of Colorado electrical license (no separate town fee stated). After July 1st, the fee is cut in half for the remainder of the year.

What building code does Bow Mar, CO use?

The Town's own Roof Specifications page is titled "Town of Bow Mar 2015 Code Requirements for Residential Roofs" and directs attention to sections R904 (Materials), R905 (Roof Coverings), R906 (Roof Insulation), and R907 (Reroofing) — numbering consistent with the 2015 International Residential Code roofing chapter — plus amended provisions at R905.2.7.1 (ice barrier, 24" minimum from the eave's edge inside the heated wall line for all new tear-offs), R806.2 (roof ventilation, 1 sq ft of net free vent area per 150 sq ft of roof area), and a locally added R905.2.2 drip-edge amendment (minimum 2" overlap, extending 1.5" below sheathing). Maximum layers: 1 for shingles, 2 for flat roofing; shake re-roofs allowed at minimum #1 grade; underlayment #15 up to 6/12 slope and #30 for 7/12 and above, with 2 layers required between 2/12 and 4/12; valleys minimum 18" (90 lb. or metal). The page does not otherwise cite an IBC edition for non-roofing work.