Basic
$4.76 – $9.52 per sq ft
45-mil black EPDM membrane fully adhered after one-layer tear-off, taped seams, standard flashings and drip edge

Photo: Crownbuild · CC BY-SA 3.0 · Source
Install a fully adhered or mechanically attached EPDM rubber membrane on a low-slope roof, including tear-off of one layer and flashing.
EPDM Roof in Portland, Oregon typically costs $5.60 to $11 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 15.0% higher than the national average for epdm roof.
National average: $5 – $10 per sq ft
$4.76 – $9.52 per sq ft
45-mil black EPDM membrane fully adhered after one-layer tear-off, taped seams, standard flashings and drip edge
$5.60 – $11 per sq ft
60-mil black EPDM fully adhered over a new cover board, seam tape, pressure-sensitive flashings and metal edge trim
$7 – $14 per sq ft
60-mil reinforced EPDM fully adhered over a cover board, wider seam tape, preformed corners and pipe boots, heavier edge metal
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2.36 – $4.73 | sq ft |
| Labor | labor | $2.19 – $4.38 | sq ft |
| Supplies & Other | supplies | $0.63 – $1.26 | sq ft |
| Equipment & Disposal | equipment | $0.42 – $0.84 | sq ft |
Large flat roof finished with an EPDM rubber membrane and upstand edge
Photo: Crownbuild · CC BY-SA 3.0 · Source
Find a pro to do thisFlat roof covered with EPDM membrane, edge trim and a ladder
Photo: KVDP · Public domain · Source
Find a pro to do thisLabor costs in Portland run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local epdm roof contractors in Portland for personalized quotes based on your specific project.