Roofing Cost in Portland, OR
Updated for 2025 • Climate Zone 4C (Mixed-Marine) • Labor rates 10% above national average
Low Estimate
$4
per sq ft
Average Cost
$8
per sq ft
High Estimate
$13
per sq ft
Portland labor costs are 10% above the national average
Roofing in Portland: What You Need to Know
Portland falls in Climate Zone 4C (Mixed-Marine), which rain management and moss prevention are primary concerns. Understanding these local factors helps you make better decisions about materials and timing.
Heavy Rainfall
40-50+ inches annually. Proper drainage and water-shedding critical.
Moss & Algae
Damp, shady conditions promote moss growth. Choose algae-resistant materials.
Mild Temps
Minimal freeze-thaw or heat stress. Most materials perform well.
✓ Recommended for Portland
- • Architectural Shingles (AR)
- • Metal Standing Seam
- • Cedar (traditional)
✗ Not Recommended
- • Flat Roofs Without Proper Drainage
- • Non-AR Shingles
Best time for this project in Portland: May - October (dry season)
Calculate Your Roofing Cost in Portland
Estimate Your Roofing Cost
Your Estimated Cost
Low
$5,880
Average
$10,290
High
$17,640
Near national average
Budget-friendly option
Estimates are for planning purposes. Actual costs vary by project specifics, contractor, and market conditions.
How We Calculate Portland Prices
- • Base national average: $7/sq ft
- • Portland labor index: 1.10x (10% above national)
- • Adjusted base: $8/sq ft
- • + Material selection multiplier
Best Roofing Options for Portland's Climate
Asphalt 3-Tab
Standard option
$6/sq ft
Architectural Shingles✓ Recommended
Good choice for Mixed-Marine climate
$8/sq ft
Metal Standing Seam✓ Recommended
Good choice for Mixed-Marine climate
$18/sq ft
Metal Corrugated✓ Recommended
Good choice for Mixed-Marine climate
$14/sq ft
Clay Tile
Standard option
$22/sq ft
Roofing FAQs for Portland Homeowners
In Portland's Climate Zone 4C, the best time for roofing projects is May - October (dry season). This timing helps ensure optimal conditions for installation and material performance.