Oregon Roof Replacement Cost Guide (2025 Update)

Introduction

In this article, I’ll give you the typical costs for installing a new roof in Oregon in 2025, for both residential and commercial buildings. I’ve spent years reviewing contractor bids and researching roofing costs for my clients around the country. The roof cost estimates I provide here were produced by analyzing current material prices, Oregon labor costs, and other relevant factors, including roofing project values from actual Oregon building permit data. The roof systems covered here include asphalt shingles, metal roofing, slate, tile, synthetic composite, cedar shakes, and all of the common types of low-slope commercial roofing.

Roof replacement costs in Oregon are generally somewhat higher than the national average, with statewide construction costs averaging about 8% above the U.S. average. (Compare to national average roof replacement costs.)

Actual roof prices will vary depending on location, roof size, roof slope, complexity, and, of course, the type of roof system installed. Asphalt shingles are by far the most common residential roof covering in Oregon, but alternatives like standing seam metal, cedar, and concrete tile are also used. Commercial “flat” (low-slope) roofs typically use single-ply membranes (EPDM, TPO, and PVC roofing), modified bitumen, or spray-applied polyurethane foam roofing systems.

On average, Oregon residential roof replacement prices in 2025 typically range from around $6.50 per square foot for basic asphalt shingles to around $37 per square foot for high-end copper roofing. This means a typical 1,700-square-foot pitched roof may cost between $11,000 and $63,000, depending on the type of material you choose.

Commercial roofing in Oregon generally costs less per square foot, with commercial roof replacement prices ranging, on average, from around $5 per square foot for a ballasted EPDM overlay system with no insulation included to around $18 per square foot for a 2-ply modified bitumen system with enough insulation to meet the Oregon R-30 energy code requirement for roofs with above-deck insulation.

The tables below provide cost information for all roof types and systems.

Climate Considerations for Oregon Roofs

Oregon’s climate is highly varied, shaped by the Pacific Ocean, the Cascade Range, and the state’s diverse geography. The western part of the state, including Portland and the Willamette Valley, has a marine west coast climate with mild, wet winters and cool, relatively dry summers. Annual precipitation in western Oregon is high, typically ranging from 40 to over 80 inches, with the heaviest rainfall occurring from late fall through spring. Along the coast, strong winds and salt-laden air are additional concerns for roof performance.

In contrast, eastern Oregon lies in the rain shadow of the Cascades and has a much drier, continental climate. Summers are hot and dry, while winters are cold and can bring significant snowfall. In the Cascade Mountains and other higher elevations, heavy snow loads must be accounted for in roof design. Severe weather risks across the state include winter storms, high winds, and occasional wildfires, especially in central and southern Oregon.

Heating and cooling demands vary regionally. Western Oregon buildings primarily face heating loads due to cool, damp winters, while eastern Oregon experiences both high summer cooling demands and substantial winter heating needs. Roofing choices should balance moisture resistance, insulation performance, and “cool roof” reflectivity based on the local climate zone.

Given these conditions, Oregon homeowners and property managers should keep the following in mind:

• Asphalt shingles are the most common and affordable roof covering. In western Oregon’s rainy climate, algae- and moss-resistant shingles are strongly recommended to reduce moss growth and algae staining.
• Proper ventilation and underlayment are essential. Good attic ventilation helps control year-round moisture and protects against condensation problems in damp climates, while also preventing ice dams in snowy regions. Note that improper ventilation can void your roof warranty.
• Metal roofing is an excellent option statewide. In coastal areas, aluminum panels are preferred for resistance to salt exposure. In snow-prone mountain regions, standing seam panels can shed snow effectively.
• Tile, slate, and cedar roofing can all perform well when installed correctly. Cedar shakes and shingles should be installed only as Class A fire-rated systems, especially in wildfire-prone regions east of the Cascades.
• Insulation and air sealing are critical to energy efficiency. Exceeding minimum code requirements can reduce heating costs in winter, while reflective or “cool” roofing options may help control cooling loads in eastern Oregon’s hot, dry summers.

Things to Keep in Mind

These roof cost estimates should be fairly accurate; I make an effort to update them regularly using current material prices and labor data specific to Oregon. Keep in mind that the costs listed below are averages, and actual costs can vary significantly depending on your specific location and the size, configuration, accessibility, and condition of your particular roof.

The residential roof cost estimates provided here are for roof replacements on roofs with a 6/12 pitch and include all standard roof components (underlayment, ice & water shield, fasteners, flashing, etc.). Steeper roofs or roofs with complex designs can increase costs by as much as 30%.

Removal of an existing commercial or residential roof typically adds between $1 and $3 per square foot. For the estimates in the tables below, $1.50 per square foot for tear-off and disposal has been included in all pricing except for the “no additional insulation” commercial roof pricing, which generally indicates a roof recover project.

Table 1: Residential Roof Costs in Oregon

Table 2: Commercial Roof Costs in Oregon

For energy code purposes, Oregon spans climate zones 4 and 5; both zones (so all of Oregon) require a minimum R-30 continuous insulation to meet R-value code requirements for commercial roofs with above-deck insulation.

When performing a roof recover, these insulation requirements generally do not apply. Recover projects usually involve adding a layer of cover board over the existing roof system to provide a suitable substrate, followed by the new roof membrane. Keep in mind that roof recovery is not always permitted or advisable.

Further Reading: Roof Cost Details by Roofing Type

• Asphalt Shingle Roof Cost Guide
• Cedar Shake & Shingle Roof Cost Guide
• Copper Roof Cost Guide
• EPDM Rubber Roof Cost Guide
• Metal Roof Cost Guide
• Modified Bitumen Roof Cost Guide
• PVC Membrane Roof Cost Guide
• Shingle Roof Cost Guide
• Single-Ply Roofing Cost Guide (EPDM, PVC, TPO)
• Slate Roof Cost Guide
• Spray Polyurethane Foam Roofing Cost Guide
• Standing Seam Metal Roofing Cost Guide
• Tile Roof Cost Guide
• TPO Membrane Roof Cost Guide

About the Author

Jack Gray spent 20 years as a principal roof consultant with the Moriarty Corporation, an award-winning building enclosure consultant firm founded in 1967. Mr. Gray has worked in the roofing industry for over 25 years, with training and practical experience in roof installation, roof inspection, roof safety, roof condition assessment, construction estimating, roof design & specification, quality assurance, roof maintenance & repair, and roof asset management. He was awarded the Registered Roof Observer (RRO) professional credential in 2009. He also served as an infantry paratrooper in the 82nd Airborne Division and has a B.A. from Cornell University.