Basic
$3.41 – $6.82 per sq ft
About 1-1/2 in. spray polyurethane foam (about R-9) with acrylic elastomeric coating in two coats

Rendering: BuildX
Spray polyurethane foam (SPF) roof system on a low-slope roof, foam plus protective elastomeric coating, priced per square foot of roof.
SPF Roof in Baltimore, Maryland 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.
Prices in Baltimore are in line with the national average for spf roof.
National average: $4 – $8 per sq ft
$3.41 – $6.82 per sq ft
About 1-1/2 in. spray polyurethane foam (about R-9) with acrylic elastomeric coating in two coats
$4.01 – $8.02 per sq ft
About 1-1/2 in. spray foam (about R-9) with silicone elastomeric coating, granules on walk paths
$5.01 – $10 per sq ft
About 1-1/2 in. spray foam (about R-9) with silicone base and topcoat, granules broadcast for durability
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.84 – $3.67 | sq ft |
| Labor | labor | $1.36 – $2.72 | sq ft |
| Supplies & Other | supplies | $0.49 – $0.98 | sq ft |
| Equipment & Disposal | equipment | $0.33 – $0.65 | sq ft |
Depth gauge probing the foam thickness on a roof
Rendering: BuildX
Find a pro to do thisWhite elastomeric coating rolled over cured roof foam
Rendering: BuildX
Find a pro to do thisMaterial costs in Baltimore run proportionally higher than labor, which may favor labor-intensive approaches.
Connect with local spf roof contractors in Baltimore for personalized quotes based on your specific project.