The Lyons Colorado roofing codes are strictly adhered to by hail damage roof inspectors and qualified roofing contractors in the Front Range area. Note the current building code follows 2015 IBC standards.

Information Updated On

1/2/19

Building Department Phone

303-823-6622

Inspection Line

800-314-7029

Permits

303-823-6622 ext. 10

Department Website

Informational Handout

Current Building Code

2015 IBC

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

Requires wind nailing

Yes

Inspectors carry ladders for the final

No

Maximum number of layers of asphalt shingles permitted

One

Maximum number of layers of flat roof material permitted

One

Requires solid sheeting (plywood/OSB) over spaced decking

Yes

Requires drip edge

Yes

Requires Rake/Gable metal edging

Yes

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

NO

Underlayment required 2:12 up to 4:12

19” Overlap of 15#

Requires ventilation to meet building codes

Yes