The Lakewood Colorado roofing codes are listed here. The current energy code is based on 2009 requirements. There is a class G or H wind speed rating requirement for new roofs installed in Lakewood.

Information Updated On

8/22/18

Building Department Phone

303-987-7500

Inspection Line

303-987-7768 ext 101 for re-roof final inspection or 62 for mid-roof inspection.

Fax Line

303-987-7979

Department Website

Current Building Code

2009 IBC/IRC

Current Energy Code

2009 IECC

Requires a Building Permit

Yes

Minimum sustained wind speed rating for Asphalt Shingles

100 MPH sustained/120 MPH 3 second gusts

Other wind speed rating

Class G or H

Inspectors carry ladders for the final

A safe ladder secured to the roof must be provided to all roof inspections where the eave line is greater than 10’ above the ground.

Requires midroof (in progress) inspection

Yes, for tile or metal roof systems after felt, flashing, and battens are installed but before final roof covering is installed.

Maximum number of layers of asphalt shingles permitted

Single layer only permitted

Maximum number of layers of flat roof material permitted

Single layer only permitted

Requires drip edge

Yes

Drip edge size minimum

2 x 2, 2 inches on deck and ¼ inch below decking

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

Double layer of roof felt is required. Ice and water shield may be used in lieu of one layer.

Type of valleys allowed

Both

Valley Underlayment/Material required for closed valleys

Either

Valley Underlayment/Material required for open valleys

Either

Kick-out required on Step Flashing
Yes

Requires ventilation to meet building codes

Yes