Basic
$3.41 – $6.81 per sq ft
About 1.5 in. of roofing-grade spray foam with a single acrylic elastomeric topcoat at standard thickness
Photo: Sgt. 1st Class Jeffrey Mullett · Public domain · Source
How Much Does Install Foam Roof Cost in Seattle, Washington?
Spray polyurethane foam (SPF) roof with elastomeric topcoat on a low-slope roof, materials and labor per sq ft; tear-off and deck repair extra.
Install Foam Roof in Seattle, Washington typically costs $4.01 to $8.02 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Install Foam Roof in Seattle, Washington
$4.01 – $8.02
per sq ftPrices in Seattle are 19.0% higher than the national average for install foam roof.
National average: $3.50 – $7 per sq ft
What you get at each price level
Standard
$4.01 – $8.02 per sq ft
About 1.5 in. of roofing-grade spray foam with a thicker two-coat acrylic elastomeric topcoat, edges and penetrations detailed
Premium
$5.01 – $10 per sq ft
About 1.5 in. of roofing-grade spray foam with a two-coat silicone topcoat and granules in the final coat
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.64 – $3.28 | sq ft |
| Labor | labor | $1.63 – $3.28 | sq ft |
| Supplies & Other | supplies | $0.44 – $0.87 | sq ft |
| Equipment & Disposal | equipment | $0.29 – $0.58 | sq ft |
Prices adjusted for Seattle local market conditions.
Install Foam Roof photo examples
White coated foam roof seen from above on a flat-roofed building
Photo: Roof Repair Today · CC BY-SA 4.0 · Source
Find a pro to do thisSpray foam being applied to a low-slope roof
Rendering: BuildX
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Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($1.58-$3.15 per square foot)
- Labor ($1.22-$2.45 per square foot)
- Supplies & Other ($0.42-$0.84 per square foot)
- Equipment & Disposal ($0.28-$0.56 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
References
- ArmorThane - Spray Foam Roofing Cost (2026), armorthane.com, retrieved 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 install foam roof contractors in Seattle for personalized quotes based on your specific project.