Basic
$2.92 – $5.83 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
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 Portland, Maine typically costs $3.43 to $6.86 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Portland are 1.0% lower than the national average for install foam roof.
National average: $3.50 – $7 per sq ft
$2.92 – $5.83 per sq ft
About 1.5 in. of roofing-grade spray foam with a single acrylic elastomeric topcoat at standard thickness
$3.43 – $6.86 per sq ft
About 1.5 in. of roofing-grade spray foam with a thicker two-coat acrylic elastomeric topcoat, edges and penetrations detailed
$4.29 – $8.58 per sq ft
About 1.5 in. of roofing-grade spray foam with a two-coat silicone topcoat and granules in the final coat
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.53 – $3.06 | sq ft |
| Labor | labor | $1.22 – $2.45 | sq ft |
| Supplies & Other | supplies | $0.41 – $0.81 | sq ft |
| Equipment & Disposal | equipment | $0.27 – $0.54 | 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 thisSpray foam being applied to a low-slope roof
Rendering: BuildX
Find a pro to do thisConnect with local install foam roof contractors in Portland for personalized quotes based on your specific project.