TPO and PVC single-ply membrane roofs last 15-25 years and cost about $5-$14 per square foot to replace in 2026. Membrane thickness (45 vs. 60 vs. 80 mil), attachment method, insulation requirements, and whether the old roof is torn off or recovered account for most of the spread. PVC costs $2-$4 per square foot more than TPO but resists chemicals and ponding better.
Last verified 2026-07-06
Typical useful life
15–25 years
2026 replacement cost
$5–$14
per sq ft, national range
Typical HOA quantity
10,000 sq ft flat roof
Measure the true roof area including parapets and flashing height, not just the building footprint. A recover (new membrane over the old roof) costs 25-40% less but delivers roughly 25% shorter useful life, and code usually allows only one recover before full tear-off. The most common budgeting miss is pricing the bare membrane and ignoring insulation upgrades — meeting a current R-30 energy code can nearly double the per-square-foot cost.
Inspect twice a year and after storms, clearing drains and scuppers so water never ponds more than 48 hours. Repair open seams and punctures immediately — single-ply failures are almost always at seams and penetrations, not in the field of the membrane. Restrict rooftop foot traffic to walkway pads, and consider a reflective restoration coating around year 15 to add 5-10 years.
Pricing is fairly uniform nationally because materials dominate, but cold-climate energy codes force thicker insulation packages that push projects toward the top of the range, and big-city union labor adds 20-40%.
National 2026 ranges · verify with local bids.
Typical small HOA: 10,000 sq ft flat roof
Set-aside = replacement cost ÷ useful life (15–25 years). A new installation funds toward the long end; an aging one needs catch-up funding — run the full calculator for that.
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Retrieved and verified 2026-07-06. National planning ranges — local bids govern. Informational only; not engineering, legal, or financial advice, and not a substitute for a professional reserve study. Report a data issue.
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