In the Colorado foothills, Nederland Colorado Roofing Codes are strictly followed by hail damage roof inspectors and roofing contractors for both roof replacements and roof repairs for homes and businesses.

Information Updated On

11/27/18

Inspection Line

720-641-1956

Fax

303-280-0878

Department Website

Current Building Code

2012 IRC/IBC

Current Energy Code

Yes

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

Wind Speed 3 sec gust 130

ASTM Standard for wind rating

ASTM D 3161 Class F

Requires wind nailing

Yes

Inspectors carry ladders for the final

No

Requires midroof (in progress) inspection

Yes, unless roof is asphalt shingles

Require a sheathing/decking inspection

No

Requires solid sheeting (plywood/OSB) over spaced decking

Yes

Maximum gap size for sheeting

½ inch gap

Requires drip edge

Yes

Requires Rake/Gable metal edging

No

Underlayment required for 4:12 and above

Per 2009 IRC

Type of valleys allowed

Per 2009 IRC

Valley Underlayment/Material required for closed valleys

Per 2009 IRC

Valley Underlayment/Material required for open valleys

Per 2009 IRC

Kick-out required on Step Flashing

Yes

Chimney crickets requirement

Per 2009 IRC

Requires ridge cap

Yes

Allows 90 lb rolled roofing on low slope heating living space

Per 2009 IRC