The Castle Rock Colorado roofing codes are listed below. There is no roofing code requirement for soffit eaves and vents. Note that the shingle wrapping package must be provided to the roof inspector during the midroof inspection.

Information Updated On

9/1/18

Building Department Phone

720.733.3572

Fax

720.733.2207

Department Website

Informational Handout

Current Building Code

2012 IBC/IRC

Current Energy Code

2012 IECC

Requires a Building Permit

Yes

Roof System/Fire Rating required for Residential Dwellings

Class A

Minimum sustained wind speed rating for Asphalt Shingles

90 MPH sustained/100 MPH 3 second gusts

ASTM Standard for wind rating

D 3161 Class F

Inspectors carry ladders for the final

No

Requires midroof (in progress) inspection

Yes, and a package of shingle wrapping with manufacturer specs must be provided at the time of inspection.

Maximum number of layers of asphalt shingles permitted

One layer

Maximum number of layers of flat roof material permitted

One layer

Requires solid sheeting (plywood/OSB) over spaced decking

No

Requires drip edge

Yes

Drip edge size minimum

Must cover sheathing

Requires Rake/Gable metal edging

Yes

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

No

Type of valleys allowed

Both

Kick-out required on Step Flashing

Yes

Requires ventilation to meet building codes

Yes

Requires Soffit eave/vents

No