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Centennial Colorado Roofing Codes

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Centennial Colorado Roofing Codes

These are the specs for the City of Centennial Colorado roofing codes. Note there is a requirement for midroof inspections, and there is a minimum asphalt saturated underlayment requirement.

Information Updated On

8/22/18

Building Department Phone

303-754-3321

Inspection Line

303-754-3321

Fax Line

303-708-1790

Department Website

Informational Handout

Current Building Code

2015 IRC/IBC

Current Energy Code

2015 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/110 MPH 3-second gusts

Requires wind nailing

Yes

Inspectors carry ladders for the final

Yes, with one story access

Requires midroof (in progress) inspection

Yes, inspection required at 25% to 75% shingled for concrete, tile, and shake shingle, metal, and flat roofs.

Maximum number of layers of asphalt shingles permitted

Single layer only

Maximum number of layers of flat roof material permitted

Single layer only

Require a sheathing/decking inspection

No

Requires solid sheeting (plywood/OSB) over spaced decking

Yes

Minimum gap size for sheeting

½ inch gap

Requires drip edge

No

Requires Rake/Gable metal edging

No

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

No

Underlayment required 2:12 up to 4:12

Minimum 15-pound asphalt saturated underlayment required. 19-inch laps of underlayment are required, starting with a 19-inch strip and then full sheets.

Underlayment required for 4:12 and above

One layer of 15-pound (minimum) asphalt saturated underlayment required.

Type of valleys allowed

Both

Valley Underlayment/Material required for closed valleys

90 pound

Valley Underlayment/Material required for open valleys

Ice and water under metal

Kick-out required on Step Flashing

Yes

Minimum curb height requirement

No

Chimney crickets requirement

30 inch or greater width

Requires ridge cap

Yes

Requires ventilation to meet building codes

Yes

Requires blower door test when increasing ventilation to code

No

Requires Soffit eave/vents

No

Allows 90 lb rolled roofing on low slope heating living space

Yes

Slope

2:12

Was delighted to have quality work done in a timely manner. Especially considering the demand in the construction industry right now where sometimes even getting a call back seems like an oddity. Will return for future roofing needs.
Dana Hubbard
Dana Hubbard
2021-03-10
Pete was vert professional and easy to communicate. Made it easy for us and I recommend them to all future customers.
Jandos Yerkhanat
Jandos Yerkhanat
2021-03-04
I am very satisfied with their work and their work ethic. Job was done in a timely fashion. Customer service was not lacking, every time I would call I would get an immediate response. They went beyond the usual for me and I would recommend them highly!! Thank you Peak to Peak Roofing!!
Grace Barbera
Grace Barbera
2021-02-05
My realtor suggested Damen at Peak to Peak for a roof replacement through our insurance. We were on a timeline to sell our home, and Damen was an absolute rock star. He answered the call on a Sunday night, showed up for an inspection and helped us through the process - getting the entire job done within a couple short weeks. The roof looks amazing, and Damen also met with our insurance adjuster and added the gutters and garage door. I can't say enough about the professionalism, communication, availability and work that Damen and Peak to Peak provide. Give them a call - you won't regret it!
Chase Piker
Chase Piker
2021-02-01
Peak to Peak Roofing did a great job on putting new nsulation in my attic. Never left a mess. Would recommend them to anyone who needs this type of work
Daryl Otwell
Daryl Otwell
2021-01-26
They were very helpful in getting repair done in a timely manner. They also painted the house. Everything looks very good and well done.
Joan Costa
Joan Costa
2021-01-25