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.
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.
Estimate a flat membrane roof
Low / typical / high ranges from cited national cost tables, adjusted by local roofer wages (BLS). No email required.