Basic
$5 – $10 per sq ft
45-mil white TPO, mechanically attached over 1/2 in. cover board, hot-air-welded seams, standard flashings and edge metal
How Much Does Membrane Roof Cost in Portland, Maine?
Install a single-ply membrane roof (TPO, PVC or EPDM) on a low-slope roof, including membrane, cover board or insulation, flashing and seams.
Membrane Roof in Portland, Maine typically costs $5.88 to $12 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Membrane Roof in Portland, Maine
$5.88 – $12
per sq ftPrices in Portland are 1.0% lower than the national average for membrane roof.
National average: $6 – $12 per sq ft
What you get at each price level
Standard
$5.88 – $12 per sq ft
60-mil white TPO, mechanically attached over polyiso insulation board, welded seams, pre-formed corners and pipe boots
Premium
$7.35 – $15 per sq ft
60-mil white TPO fully adhered over thicker polyiso and cover board, welded seams, pre-formed corners, reinforced perimeter
Cost Breakdown in Portland
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2.62 – $5.24 | sq ft |
| Labor | labor | $2.10 – $4.20 | sq ft |
| Supplies & Other | supplies | $0.70 – $1.40 | sq ft |
| Equipment & Disposal | equipment | $0.47 – $0.93 | sq ft |
Prices adjusted for Portland local market conditions.
Cost Factors in Portland, Maine
What Affects Pricing
- Materials ($2.70-$5.40 per square foot)
- Labor ($2.10-$4.20 per square foot)
- Supplies & Other ($0.72-$1.44 per square foot)
- Equipment & Disposal ($0.48-$0.96 per square foot)
Local Price Adjustments
Material costs3.0% below avg
Labor costsAt national average
Frequently Asked Questions
References
- TPO Roofing Cost Guide for Commercial Buildings in 2026, classicmidwest.com, retrieved Nov 2026
- TPO Roofing Cost Per Square 2026 | The Roofing Brief, The Roofing Brief, retrieved Nov 2026
- TPO Roofing Cost Per Square Foot (2026) | General Roofing, General Roofing, retrieved Nov 2026
- California Flat Roof Replacement Cost: TPO vs EPDM vs PVC | RoofVista, RoofVista, 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 Portland
Connect with local membrane roof contractors in Portland for personalized quotes based on your specific project.