This is the list of roofing codes for Clear Creek County Colorado. The minimum sustained wind speed rating is 100 MPH for asphalt shingles. Also note that a decking inspection is required if the deck is being replaced.

Information Updated On

9/16/18

Building Department Phone

303-679-2333

Inspection Line

303-670-7534

Permits

Fax

303-569-1103

Department Website

Informational Handout

Current Building Code

2015 IRC/IBC

Current Energy Code

2015 IECC

Requires a Building Permit

Yes

Roof System/Fire Rating required for Residential Dwellings

Class A

Roof System/Fire Rating required for Commercial Buildings

Class A

Roof System/Fire Rating required for Multi-Family

Class A

Minimum sustained wind speed rating for Asphalt Shingles

100 MPH

Requires wind nailing

Yes

Inspectors carry ladders for the final

No

Requires midroof (in progress) inspection

Yes, required at the point that drip edge, flashing, underlayment, and ice barrier have been installed. 

Maximum number of layers of asphalt shingles permitted

Only 1 layer permitted

Maximum number of layers of flat roof material permitted

Only one layer permitted

Require a sheathing/decking inspection

Yes, if decking is being replaced

Requires solid sheeting (plywood/OSB) over spaced decking

Yes

Minimum gap size for sheeting

¼” gap

Requires drip edge

Yes

Drip edge size minimum

2 x 2

Requires Rake/Gable metal edging

Yes

Enforces the use of Self Adhering Underlayment (i.e., Ice & Water)

Yes

Distance inside warm wall

24” inside warm wall

Underlayment required 2:12 up to 4:12

19” overlap of 30 pound

Underlayment required for 4:12 and above

15 pound self adhering at eave 2’ from exterior wall line

Type of valleys allowed

Open and Closed

Valley Underlayment/Material required for closed valleys

Ice and water shield

Valley Underlayment/Material required for open valleys

Ice and water shield

Kick-out required on Step Flashing

Yes

Chimney crickets requirement

30” or greater width

Requires ridge cap

Yes

Requires ventilation to meet building codes

Yes

Requires Soffit eave/vents

Yes, new construction only