Basic
$3.11 – $6.23 per sq ft
About 1-1/2 in. spray polyurethane foam (around R-9) with a two-coat acrylic elastomeric topcoat

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.
Foam Roof in Washington, District of Columbia typically costs $3.66 to $7.33 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Washington are 5.0% higher than the national average for foam roof.
National average: $3.50 – $7 per sq ft
$3.11 – $6.23 per sq ft
About 1-1/2 in. spray polyurethane foam (around R-9) with a two-coat acrylic elastomeric topcoat
$3.66 – $7.33 per sq ft
About 1-1/2 in. spray polyurethane foam (around R-9) with a silicone elastomeric topcoat and embedded granules
$4.58 – $9.16 per sq ft
About 1-1/2 in. spray polyurethane foam (around R-9) with a thicker silicone topcoat, embedded granules and walkway pads at access points
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.65 – $3.31 | sq ft |
| Labor | labor | $1.28 – $2.54 | sq ft |
| Supplies & Other | supplies | $0.44 – $0.89 | sq ft |
| Equipment & Disposal | equipment | $0.29 – $0.59 | sq ft |
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 thisConnect with local foam roof contractors in Washington for personalized quotes based on your specific project.