Building Codes

The Town of Columbine Valley has adopted the following building codes.

  • 2015 International Building Code
  • 2014 National Electrical Code

Roofing Requirements – in order to better serve our citizens and roofing contractors, the following summarizes current requirements.

  • Ice barrier shall be used on the eave edge for all new roof tear offs. The ice barrier shall extend 24 inches from the exterior wall.
  • Provide drip edge metal at eaves and gable ends. Eave and gable drip edge metal shall extend a minimum of 2 inches onto the roof surface and 1½ inches over the exposed decking edge.
  • The total net free area shall not be less than 1 square foot of roof vents per 150 square feet of roof area.
  • Nail down mineral surfaced roll roofing is NOT allowed for any roofing application. Mineral surfaced roll roofing shall be attached per manufacture’s installation instructions in an adhered- or torch-down installation.
  • Most neoprene plumbing vent flashings will have to be replaced due to deformities caused by exposure to the elements.
  • Rusted and/or damaged flashing, attic vents, furnace to fireplace vents are required to be replaced.
  • Flashing used for open valleys shall be a minimum 24-inches wide, 26-gage galvanized steel.
  • Flashing and counter flashings are required where the roof meets a vertical surface. Counter flashing may be omitted if the top edge of the wall flashing is covered with an approved exterior siding material.
  • Asphalt shingles shall be fastened to solidly sheathed decks. Solid sheathing is required with consistent gaps in the spaced decking 1/4 inch or greater.