Skip Main Navigation
Skip to Content


  • Published
  • Updated
  • by Utilities

Permits and inspections are required for residential and commercial roof replacement allowing building department staff to verify your project meets the minimum building code requirements.

Re-Roofing Guidelines

Replacement of roofing material, up to a total of 100 square feet per year, is considered maintenance and does not require a Re-roofing Permit. If a roof is damaged on only one face/side, it is possible/acceptable to replace only that portion of the roofing material if allowed by the manufacturers installation instructions and the proper code requirements are followed.  Below are links to additional Re-Roofing topics.

Submit Your Application

Applications can be submitted in person or electronically using eTRAKiT at Applications that are submitted online will be reviewed and you will be notified via e-mail when the permit is approved and ready for payment. Licensed contractors will login using your contractor license number in the "Arvada Contractor" field and your password. If you don't remember your password you can use the "Forgot your password" link.

Online Application Process

The City of Arvada uses eTRAKiT for the Permit application process.


  eTRAKIT Application





Fees are calculated using the value of the re-roofing project including the value of all labor and materials.  This is typically the contract price provided by the contractor or if the work is being performed by a homeowner, a good estimate is material cost times two.  The permit costs will include the  Building Permit fee from table 18-1 and Use Tax. Use tax is collected at time of the permit issuance. Once the Use Tax has been paid, a copy of the permit can be presented to the material vendor who should then deduct any City Sales Tax on materials.

What is Use Tax 

Use tax is a tax that is assessed in lieu of sales tax. The Arvada use tax rate is the same as the sales tax rate, 3.46%. Building use tax is assessed on construction materials that are used in Arvada. The revenues from building use tax are utilized to fund additional city services related to construction growth.

The tax is computed on the total value of the project. The construction project valuation is based on statistical data relating to costs of similar projects or the actual contract price of a project. Although an individual may conduct the construction work themselves and may obtain materials at a discount or no cost to the project still results in increased value to the improvements. Consequently, use tax is calculated on the greater of the calculated or contract values.

The building permit fee and Use Tax are based on the total value of construction. Use the Permit Fee Table to generate your fee. Use Tax is 56% of the job value multiplied by 3.46%.



Please note that inspection dates for roofing inspections are subject to weather and volume of inspections. Please schedule your inspection and check for inspection completion. An e-mail confirming the completion of the inspection will be sent to the applicant on completion of inspection.

  • MID-ROOF inspections are only required when the roof is flat (1:12) or for special roofing materials such as heavy tiled roofs. 
  • ROOFING final inspections are required for all Re-Roofing permits.
  • No one needs to be home for the inspector to complete their inspection.  Please make sure that access to lower roofs is available and no dogs are in the area.
  • Ladders: homeowners and contractors do not need to provide a ladder for eave heights less than 12 feet.  For eave heights more than 12 feet, please add a note and phone number to your inspection requests indicating a ladder will need to be placed for the inspection.  We will call to arrange an inspection time for roofs where a homeowner/contractor needs to place a tall ladder.  
  • Due to the volume of work after hail storms and daily weather conditions (rain, snow, wind, etc.), the inspection may not be made for several days after it is requested.  The inspection status is available on


Closing the Permit

Once the ROOFING inspection is completed with an APPROVED or FINAL result, the permit will be finaled and considered closed. Please review the permit status and inspection results on


Roofing Installation Guidelines 

Commercial Roofing IBC-2009

  • Positive Roof Drainage:  It is a requirement that all roofs must have enough pitch to ensure drainage of the roof within 48 hours after precipitation.
  • All commercial roofs must be installed in accordance with Chapter 15 of the 2009 International Building Code as amended and in accordance with the manufacturer's installation instructions.
  • In order to pass a ROOFING final inspection, the City requires a letter of inspection and approval from the manufacturer's agent stating “the application of the roof at (put in the address) Arvada, CO has been applied in accordance with the installation instructions for (roof material company name)” A warranty letter is not acceptable
  • All commercial roofing shall be installed as per manufacturer's installations instructions for the wind speed at the area of installation.
  • MID-ROOF inspections are required for low slope, commercial, and specialty roofs. A letter from the manufacturer’s agent is required for the ROOFING final inspection. (not a warranty letter)


Residential Roofing / Re-Roofing IRC-2009 General requirements:

  • Ice Barrier (Ice and Water Shield) not required.
  • Any roofing material that is installed for residential use in the City of Arvada must meet the requirements of Chapter 9 International Residential Code including local amendments.
  • 1 layer of roofing maximum-per IRC R903.7 (4) and IRC Table R903.5 as Arvada is in an area prone to one or more hail days with hail diameters 1.5 inches (51 mm) or larger in a 20-year period.
  • MID-ROOF inspections are required for low slope, tile, special roofs or special conditions.

3-Tab, Laminate and Dimensional

  • High wind nails per manufactures specs, but no less than 4 nails per shingle. (R905.2.6)
  • 2/12 slope minimum roof pitch for all asphalt strip shingles.
  • Slopes 2/12 to 4/12 require double felt.
  • 90 pound roofing is allowed to 1/12 pitch but must be in accordance with manufacturer’s requirements- most stop at 2/12.
  • Mansard and steep slope roofs may require special fastening per the manufacturer's installation instructions.
  • T-Lock roofing shingles are no longer allowed, but can be repaired.
  • Drip edge and rake metal is required on all edges.(Arvada Amendment 18-2-R905.2.8.5 and 18-2-R907. • 6.1)
  • Flashing and step flashing is required per R703.8.
  • Felt under rake edge flashing and over eve edge flashing.
  • Exposure of shingles per manufacturer’s installation instructions.
  • Valleys – Metal open valley as per Table R905.2.8.


  • All tile roofs are required to have horizontal batten system lifted off the roof by vertical battens, pads or per manufactures installation requirements.
  • High wind installation as specified by the manufacturer.
  • Mid-roof inspection required with all battens, laterals and metal applied and roof must not be loaded. Wind Speed areas.

Wind Speed Areas

  • East of Highway 93 - 105 mph, Exposure C
  • West of Highway 93 110 mph, Exposure C • All roofing products are required to meet the test ASTM 3161 Class F/110 mph. ASTM 3161 Class F is not associated with the warranty from the shingle manufacturer-three tabs do meet this test as well as laminate or dimensional shingles.

Attic Ventilation

  • Attic ventilation requirements as per Section R806 of the International Residential Code.

Other Requirements and Notes

  • Evaporative coolers - Step and counter flashing required. (R905.2.8.3 and R05.2.8.4)

  • Spaced sheathing - Spaced sheathing, with spaces not greater than 1/2" can be reused if it is still in good structural shape. If the gaps are greater than 1/2" in a few areas, repairs may be able to be made. If the gaps are greater than 1/2" on the majority of the roof the spaced sheathing should be removed and solid sheathing shall be installed. If a request is made to install new solid sheathing over the existing spaced sheathing- the sheathing must be nailed in accordance with nailing schedule found in the 2009 IRC

  • Crickets are required for all chimneys and saddles (ridge side) 30” or wider.

  • Roof overhang into gutter – 3/8 to 1 inch.

  • Metal Flashing - Replace all metal flashing when rusted, damaged or deteriorated. (R907.5) (roof jack, step and counter except B-vent, elect mast.)

  • If the furnace flue is damaged or rusted it will need to be replaced by a HVAC contractor. The flue cap should be checked as well as the flue connection to make sure they are connect properly and the cap if replaced needs to be installed correctly so it will allow the escape of dangerous gasses from the home.

Contact Information

  •  Main Telephone Number:
  •  Street Address:
    8101 Ralston Road, Arvada, CO 80002