Northglenn Colorado Roofing Codes

Northglenn Colorado roofing codes are listed here for roof repair and roof replacements for homes and businesses in Northglenn. Roofing contractors in Denver and hail damage roof inspectors are knowledgeable about Colorado roofing codes.

Information Updated On

11/27/18

Building Department Phone

303-450-8745

Inspection Line

303-450-8748

Fax

303-280-0878

Department Website

https://www.northglenn.org/government/departments/building/index.php

Current Building Code

2009 IBC/IRC

Current Energy Code

2009 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 designed wind speed rating

Wind Exposure Category “B”

ASTM Standard for wind rating

ASTM D 3161 F

Requires a manufacturer’s wind warranty

No

Requires wind nailing

Yes, per manufacturer requirements

Inspectors carry ladders for the final

No

Requires midroof (in progress) inspection

Yes, all roofs except asphalt shingle roofs require mid-roof inspection

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

Drip edge size minimum

Rake metal, only if exposed sheathing

Requires Rake/Gable metal edging

No

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

No

Underlayment required for 4:12 and above

#15

Type of valleys allowed

Both

Valley Underlayment/Material required for open valleys

Metal, or two plies of rolled

Kick-out required on Step Flashing

Yes

Requires ridge cap

Yes

Requires Soffit eave/vents

Yes, new construction only

Allows rolled roofing on low slope heating living space

Yes

Low Slope

2:12

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