Metal Roof Cost in the Pacific Northwest: Is It Worth It?
Metal roofs cost 2–3x more than asphalt but last 50+ years, shed moss naturally, and handle PNW rain beautifully. Here's when they pay off.
Metal roof cost in Washington (2026)
Standing seam metal: $14–$22 per sq ft installed. Metal shingle (looks like asphalt): $11–$16 per sq ft. Corrugated / R-panel: $8–$12 per sq ft (usually agricultural or shop buildings, not homes).
A 2,000 sq ft roof in Sumner or Puyallup will run $28,000–$44,000 in standing seam vs $9,000–$13,000 for premium architectural asphalt.
Why PNW homeowners consider metal
Moss slides off — the smooth painted surface and thermal expansion prevent moss anchoring. You save 20+ years of moss treatments.
50+ year lifespan means you install it once. For homeowners planning to stay long-term, it's the last roof you'll buy.
Sheds heavy rain fast, no granule loss, no shingle lift in wind. Excellent for wooded lots with heavy tree debris.
The honest downsides
Cost. A metal roof is 2–3x an asphalt roof. Even accounting for lifespan, the cost-per-year is similar to premium architectural — you're paying for the aesthetic and the peace of mind, not necessarily saving money.
Noise in heavy rain (mitigated with proper underlayment and attic insulation, but real).
Denting from large hail or falling branches. Repairs are specialized and more expensive per fix.
Not every neighborhood aesthetic supports it — HOA and historic districts sometimes restrict metal.
When metal makes sense
Forever homes on wooded lots with heavy moss and tree debris. Steep-slope architecture where metal's clean lines shine. Homes in high-wind zones. Owners who want zero maintenance for the next 30–50 years.
When asphalt is the smarter buy
Selling within 10 years, tight budget, or a simpler roof design where architectural shingles look great. For most PNW homes, high-end architectural asphalt (GAF Timberline HDZ, Owens Corning Duration) is the sweet spot on price and performance.
Frequently asked
Do metal roofs lower home insurance?
Some carriers give a 5–15% discount for Class 4 impact-rated metal roofs. Ask your agent.
Are metal roofs louder in the rain?
Slightly, but properly installed with underlayment and normal attic insulation the difference is barely noticeable indoors.
Can you install metal over existing shingles?
Technically possible but not recommended in the PNW — hidden decking rot needs to be inspected during tear-off.