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Bennett Colorado Roofing Codes

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Bennett Colorado Roofing Codes

The Bennett Colorado roofing codes are listed here. There is an energy code requirement based on 2012 specs, and the wind nailing per-tile requirement is higher than other cities.

Information Updated On

9/1/18

Building Department Phone

303.644.3249 ext 1012

Inspection Line

303.774.4472

Fax

303.644.4125

Department Website

Informational Handout

Current Building Code

2012 IBC

Current Energy Code

2012 IECC

Requires a Building Permit

Yes

Roof System/Fire Rating required for Residential Dwellings

Class C

Roof System/Fire Rating required for Commercial Buildings

Class A

Roof System/Fire Rating required for Multi-Family

Class C

Minimum sustained wind speed rating for Asphalt Shingles

90 MPH

Requires wind nailing

Yes, per manufacturer guidelines or 6 nails per tile, whichever is greater.

Inspectors carry ladders for the final

No

Requires midroof (in progress) inspection

Mid-roof inspection required on tile roofs

Maximum number of layers of asphalt shingles permitted

Two layers allowed

Maximum number of layers of flat roof material permitted

Two layers allowed

Require a sheathing/decking inspection

Yes

Requires solid sheeting (plywood/OSB) over spaced decking

Yes

Minimum gap size for sheeting

Any gap at all

Requires drip edge

Yes

Drip edge size minimum

Overlapped a minimum of 2” and extending a minimum of ¼” below sheathing and up the roof deck a minimum of 2”

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#

Underlayment required for 4:12 and above

Single layer of 15#

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

Chimney crickets requirement

24” or greater width

Requires ridge cap

Yes

Requires ventilation to meet building codes

Yes

Requires Soffit eave/vents

Yes

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