Aspen Colorado Roofing Codes

Here are the Aspen Colorado roofing codes. Note there are special permits required for snow melt roof alterations, however, there are no wind nailing requirements.

Information Updated On

9/1/18

Building Department Phone

970.920.5450

Inspection Line

970.920.5448

Permits

970.920.5090

Fax

970.920.5439

Department Website

Current Building Code

2015 IBC/IRC

Current Energy Code

2015 IECC

Requires a Building Permit

Yes

Other/Special Permits required

Yes, if any alterations are made to the roof and for snow melt.

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

Special conditions

Class B fire retardant wood shakes/shingles

Requires wind nailing

No

Inspectors carry ladders for the final

No

Maximum number of layers of asphalt shingles permitted

2 layers

Maximum number of layers of flat roof material permitted

2 layers

Require a sheathing/decking inspection

If more than 100 square feet is being replaced

Requires solid sheeting (plywood/OSB) over spaced decking

Yes

Minimum gap size for sheeting

Any gap at all

Requires drip edge

Yes

Drip edge size minimum

2×2

Requires Rake/Gable metal edging

No

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

Yes

Distance inside warm wall

36” inside of the heated wall

Underlayment required 2:12 up to 4:12

19” overlap of 15 pound

Underlayment required for 4:12 and above

15 pound

Type of valleys allowed

Both

Valley Underlayment/Material required for closed valleys

Ice and water

Kick-out required on Step Flashing

Yes

Minimum curb height requirement

No

Chimney crickets requirement

30” or greater width

Requires ridge cap

Yes

Requires ventilation to meet building codes

Yes

Requires blower door test when increasing ventilation to code

No

Requires Soffit eave/vents

No

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