Material · 2026 Q3
Flat / low-slope membrane (TPO or EPDM): cost per square
Installed, $350 to $1,000 per square nationally. The Index splits that into materials $50 to $250 and labor $200 to $450 per square (HomeGuide flat-roof page (EPDM/TPO membrane material rows; flat-roof labor sentence)), and scales only the labor part by each area's BLS roofer wage. US typical on the Index: $475 per square.
How much does a flat membrane roof cost?
$8,989 to $25,796 on a 2,000 sq ft single-story home (6/12 pitch, one layer torn off, permit and dumpster included) at US-average labor, typical $17,352. Installed, that is $3.50 to $10.00 per square foot of roof.
Sources for this material
- HomeGuide (page dated 2026), retrieved 2026-09-25:
EPDM rubber membrane roof cost $3.50 – $10.00 [per sq ft installed]; TPO membrane roof cost $4.00 – $10.00 ... [material] EPDM membrane $0.50 – $2.50; TPO membrane $1.00 – $2.50 ... Labor for flat roof replacement costs $2.00 to $4.50 per square foot
per-square values converted from the quoted $/sq ft x 100 (1 square = 100 sq ft) - Fixr (page dated January 31, 2025), retrieved 2026-09-25:
EPDM: "$4.25 - $13" per sq.ft. [installed] ... "Prices for a TPO roof run between $4.50 and $14 per sq.ft."
per-square values converted from the quoted $/sq ft x 100 (1 square = 100 sq ft) - HomeAdvisor (page dated June 20, 2026), retrieved 2026-09-25:
TPO: "$4 to $14 per square foot"; EPDM/Rubber: "$5 and $13 per square foot" ... "$3 to $7 per square foot for labor, roughly 20% to 30% of the total bill"
per-square values converted from the quoted $/sq ft x 100 (1 square = 100 sq ft)
Per-square = per-sq-ft x 100. The split used by the Index comes from HomeGuide flat-roof page (EPDM/TPO membrane material rows; flat-roof labor sentence). Other materials: Architectural shingles, 3-tab shingles, Standing seam metal, Metal panel, Tile, Slate.
Flat membrane by state, 2026 Q3
| Rank | State | Low | Typical | High |
|---|---|---|---|---|
| 1 | Illinois | $317 | $584 | $851 |
| 2 | New Jersey | $306 | $566 | $826 |
| 3 | Massachusetts | $301 | $558 | $815 |
| 4 | Minnesota | $301 | $558 | $814 |
| 5 | New York | $289 | $538 | $787 |
| 6 | Washington | $287 | $535 | $783 |
| 7 | District of Columbia | $287 | $534 | $782 |
| 8 | Connecticut | $286 | $533 | $780 |
| 9 | Alaska | $286 | $533 | $780 |
| 10 | California | $282 | $527 | $772 |
| 11 | New Hampshire | $270 | $507 | $744 |
| 12 | Rhode Island | $269 | $505 | $742 |
| 13 | Maryland | $262 | $495 | $727 |
| 14 | Oregon | $262 | $494 | $726 |
| 15 | Michigan | $261 | $493 | $726 |
| 16 | Hawaii | $261 | $493 | $725 |
| 17 | North Dakota | $258 | $488 | $719 |
| 18 | Indiana | $256 | $484 | $713 |
| 19 | Wisconsin | $250 | $475 | $699 |
| 20 | Nevada | $248 | $471 | $695 |
| 21 | Montana | $246 | $469 | $691 |
| 22 | Pennsylvania | $244 | $466 | $687 |
| 23 | Missouri | $244 | $465 | $686 |
| 24 | Vermont | $244 | $465 | $686 |
| 25 | Colorado | $243 | $464 | $685 |
| 26 | Ohio | $241 | $461 | $681 |
| 27 | Delaware | $240 | $459 | $678 |
| 28 | Idaho | $237 | $454 | $670 |
| 29 | Maine | $235 | $450 | $666 |
| 30 | Kansas | $234 | $448 | $663 |
| 31 | Louisiana | $232 | $445 | $659 |
| 32 | Iowa | $229 | $441 | $653 |
| 33 | Utah | $227 | $438 | $649 |
| 34 | Virginia | $227 | $438 | $649 |
| 35 | West Virginia | $226 | $436 | $645 |
| 36 | Kentucky | $224 | $433 | $642 |
| 37 | Arizona | $224 | $433 | $642 |
| 38 | South Carolina | $223 | $431 | $638 |
| 39 | North Carolina | $222 | $430 | $637 |
| 40 | Wyoming | $221 | $428 | $635 |
| 41 | Oklahoma | $219 | $425 | $630 |
| 42 | Florida | $218 | $423 | $628 |
| 43 | Georgia | $217 | $421 | $625 |
| 44 | New Mexico | $215 | $418 | $621 |
| 45 | Nebraska | $215 | $418 | $621 |
| 46 | Alabama | $215 | $418 | $620 |
| 47 | Texas | $212 | $414 | $615 |
| 48 | South Dakota | $212 | $413 | $614 |
| 49 | Tennessee | $211 | $411 | $612 |
| 50 | Arkansas | $208 | $406 | $604 |
| 51 | Mississippi | $206 | $403 | $601 |
Rank is the state's overall Index rank of 51; the ordering is the same for every material because only labor varies.
Cost in the largest metros
The 12 metro areas with the most roofers (BLS, May 2025), typical cost per square for architectural shingles.
- Los Angeles-Long Beach-Anaheim, CA $549
- Miami-Fort Lauderdale-West Palm Beach, FL $445
- Chicago-Naperville-Elgin, IL-IN $628
- Tampa-St. Petersburg-Clearwater, FL $447
- New York-Newark-Jersey City, NY-NJ $606
- Seattle-Tacoma-Bellevue, WA $584
- Phoenix-Mesa-Chandler, AZ $464
- Orlando-Kissimmee-Sanford, FL $449
- San Francisco-Oakland-Fremont, CA $590
- Riverside-San Bernardino-Ontario, CA $529
- Portland-Vancouver-Hillsboro, OR-WA $549
- Dallas-Fort Worth-Arlington, TX $452
Flat membrane roof cost questions
How much does a flat membrane roof cost?
On a 2,000 sq ft single-story home (6/12 pitch, one layer torn off, permit and dumpster included), a flat membrane roof costs $8,989 to $25,796 at US-average labor, typical $17,352 (2026 Q3 Roof Cost Index).
How much is a flat membrane roof per square foot?
$3.50 to $10.00 per square foot of roof surface installed, which is $350 to $1,000 per square (100 sq ft). Materials are $50 to $250 per square and labor $200 to $450.
Where is a flat membrane roof most and least expensive?
Illinois is the most expensive state (typical $20,035 for the 2,000 sq ft example) and Mississippi the least ($15,585). Only labor varies by state in this edition, so the ranking is the same for every material.
Estimate a flat membrane roof
Low / typical / high ranges from cited national cost tables, adjusted by local roofer wages (BLS). No email required.