Boise, Idaho · Metal roofing

Boise metal roofing

A metal roof in Boise needs a building permit, a Class A roof if the lot is in the city's wildland-urban interface area, and a Certificate of Appropriateness in a historic district. We install Interlock® aluminum roofs from our office at 3295 W Elder St, Suite 209, Boise, and pull the permit as part of the job.

Reviewed by Scott Plumptree, Director of Marketing, The Interlock Group · Updated October 8, 2026

Get a free quote (208) 842-4762

Office

3295 W Elder St, Suite 209, Boise

(208) 842-4762

Foothills

Class A roof in the WUI

Boise City Code 5-12-53.

Snow

15 psf ground snow load

University of Idaho, 2015.

Our Boise office

Interlock Metal Roofing (PNW) Inc. serves Idaho from 3295 W Elder St, Suite 209, Boise, ID 83705. Call (208) 842-4762. We are the certified and exclusive Interlock® roofing contractor in Idaho, Oregon and Washington, in business since 1997, and registered in Idaho as a General Contractor (DOPL #6181938).

Idaho is a new market for us. You won't find Boise install counts or Boise reviews here until we have them. What this page sets out is what a new roof in Boise involves, and how an Interlock® aluminum roof fits it.

The re-roof permit

The City of Boise lists re-roofing an existing structure as work that needs a building permit, and homeowners can apply online for a roof permit through Planning and Development Services. When we install your roof, we pull the permit as part of the job and build to the code the city enforces.

Idaho's adopted residential code is the 2018 International Residential Code with Idaho amendments (the Idaho Residential Code, 2020 Edition), according to the Division of Occupational and Professional Licenses.

Foothills homes and Boise's wildland-urban interface code

Boise has added a Wildland-Urban Interface chapter to its fire code (Boise City Code 5-12-53). The fire code official maps the wildland-urban interface areas and decides which lots are in them: generally the foothills, with valley, desert and other sheltered areas in a second class of construction.

Ignition-resistant construction in those areas calls for a Class A roof assembly or covering, tested to ASTM E108 or UL 790. The rule also reaches existing homes: when the roof covering is replaced, or 50 percent or more of it is replaced within 12 months, the new roof has to meet it.

An Interlock® roof is Class A Fire Rated Available, as a complete assembly: two layers of GAF VersaShield® over 15/32-inch plywood. Aluminum itself does not ignite, and there are no shake grooves or granules for embers to settle into. Idaho's Ready, Set, Go! guide calls the roof the most vulnerable part of a home because windblown embers lodge there.

Historic districts

Boise has ten designated historic districts. The city's Historic Preservation staff say exterior work there, including demolition of any part of a building such as the roof, needs a Certificate of Appropriateness before a building permit can be issued. If your home is in a district, call Historic Preservation (208-608-7100) before you choose a profile and color; we bring samples and product documents to that conversation.

Boise weather and your roof

Snow load

The University of Idaho's 2015 ground snow load study lists 15 psf for Boise at 2,681 ft. Aluminum panels weigh about 0.41 to 0.59 lb per square foot installed (ICC-ES ESR-1790), and smooth aluminum sheds snow, so we plan snow guards over entries, decks and driveways.

Hail

Spring and summer thunderstorms bring hail to the valley: on June 26, 2026 a storm left several inches of small hail on the ground in northwest Meridian. Interlock's Slate, Cedar Shingle, Shake and Mediterranean Tile profiles carry a UL 2218 Class 4 impact rating, verified by Intertek for Delta Building Products.

Freeze–thaw

Freezing nights and sunny afternoons split wood shakes and work water under asphalt tabs. Aluminum absorbs no water and can't rot, and interlocked panels have no tabs to lift.

Summer heat

Hot, dry summers age asphalt. The Alunar® finish reflects much of the sun's near-infrared energy in every color and carries a 30 Year Alunar® Coating Warranty.

Boise homes we quote

North End and East End older homes, foothills homes, ranch homes across the Bench, two-story homes in southeast and west Boise subdivisions, townhouses and HOA communities. Slate and Cedar Shingle are the usual choices on a traditional home; Shake replaces a cedar shake roof without the fire load; Standing Seam suits a modern home. Every Interlock profile needs a minimum 3/12 slope. Many Boise subdivisions have CC&Rs and an architectural committee that approves roof material and color: get that approval in writing before you sign.

What's covered, in writing

Guardian Lifetime Limited Material Warranty, from the manufacturer: material and finish, for as long as the original purchaser owns the home, transferable once. Workmanship is excluded, and ice damming is a stated exclusion.
30 Year Alunar® Coating Warranty on the finish.
Our 10 Year Limited Labor Warranty covers the installation (Form 5335, issued by Interlock Metal Roofing (PNW) Inc.; one certificate for Idaho, Oregon and Washington).
Wind resistance warranted to 120 mph when installed to manufacturer specification.

Questions, answered

Who installs metal roofs in Boise?

Interlock Metal Roofing (PNW) Inc., the certified and exclusive Interlock® roofing contractor in Idaho, Oregon and Washington, from our office at 3295 W Elder St, Suite 209, Boise. Idaho General Contractor Registration (DOPL) #6181938. Call (208) 842-4762.

Do I need a permit to replace my roof in Boise?

Yes. The City of Boise lists re-roofing an existing structure as work that needs a building permit. We pull it as part of the job.

Does Boise require a Class A roof assembly?

In the city's wildland-urban interface areas, yes, for ignition-resistant construction, and it applies when a roof covering is replaced or 50 percent or more of it is replaced within 12 months (Boise City Code 5-12-53). The fire code official decides which lots are in those areas. An Interlock® roof is Class A Fire Rated Available, as a complete assembly.

Is a metal roof allowed in a Boise historic district?

Ask the city first. Boise's Historic Preservation staff say exterior work in its ten historic districts, including demolition of any part of a building such as the roof, needs a Certificate of Appropriateness before a building permit can be issued. Call 208-608-7100.

What is the snow load for a roof in Boise?

The University of Idaho's 2015 ground snow load study lists 15 psf for Boise. Your building department sets the design load for your address.

Have you installed roofs in Boise?

Not yet. Idaho is a new market for us, and we will not show Boise roofs or reviews until we have them. The company has installed Interlock® roofs in Oregon and Washington since 1997.

How much does a metal roof cost in Boise?

It depends on the roof's area, pitch and complexity, what comes off, the profile, the fire-rated assembly, snow guards and the permit. Prices vary job to job, and an in-home roof consultation is required for accurate pricing. You get a written price after your roof consultation, which is free.

Sources

Product specifications are the manufacturer's (Interlock Roofing). Reviewed by Scott Plumptree, October 8, 2026.

Related guides

Get your Boise roof priced.

A written price after your roof consultation, at your home or on Zoom. Interlock Metal Roofing (PNW) Inc. · 3295 W Elder St, Suite 209, Boise, ID 83705

Get a free quote (208) 842-4762