Basic
$0.73 – $2.43 per sq ft
Synthetic underlayment rated for metal roofing over the full deck, cap-nailed, extra lap at valleys
How Much Does Underlayment For Metal Roof Cost in Seattle, Washington?
Install synthetic or high-temperature self-adhered underlayment on the roof deck beneath a metal roof, materials and labor per square foot of roof (metal panels not included).
Underlayment For Metal Roof in Seattle, Washington typically costs $0.86 to $2.86 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Underlayment For Metal Roof in Seattle, Washington
$0.86 – $2.86
per sq ftPrices in Seattle are 19.0% higher than the national average for underlayment for metal roof.
National average: $0.75 – $2.50 per sq ft
What you get at each price level
Standard
$0.86 – $2.86 per sq ft
Synthetic underlayment on the field plus high-temperature self-adhered membrane at eaves, valleys and penetrations
Premium
$1.08 – $3.58 per sq ft
High-temperature self-adhered underlayment over the entire roof deck, laps rolled and sealed, extra ply in valleys
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.34 – $1.18 | sq ft |
| Labor | labor | $0.36 – $1.18 | sq ft |
| Supplies & Other | supplies | $0.09 – $0.30 | sq ft |
| Equipment & Disposal | equipment | $0.06 – $0.21 | sq ft |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($0.33-$1.13 per square foot)
- Labor ($0.27-$0.88 per square foot)
- Supplies & Other ($0.09-$0.29 per square foot)
- Equipment & Disposal ($0.06-$0.20 per square foot)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
How we price this
BuildX Pro researches and reviews the national price range for Underlayment For Metal Roof, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Nov 2026.
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
Connect with local underlayment for metal roof contractors in Seattle for personalized quotes based on your specific project.