Roof Replacement Cost Calculator for Knoxville, TN
Get a rough price range for a new roof on a Knoxville, TN home in four quick steps. The calculator turns your home's size, its number of stories and the pitch of the roof into an estimated roof area, then prices it with published 2026 cost figures. Use it to plan a budget, not as a quote.
Prefer to talk? Call now(865) 555-0147Before You Start
The math is short. Your home's living area is divided by the number of stories to estimate the footprint. That footprint is multiplied by a slope factor, 1.12 for a roof you could walk on and 1.30 for a steep one, and then by 1.10 to allow for the overhang at the eaves. The answer is the roof surface in square feet, rounded to the nearest 10.
That surface is then priced per square foot. Shingle roofs use $4.50 to $7.50, from architectural shingles at the low end to Class 4 impact-resistant shingles at the top. Metal uses $8.25 to $13.50, from exposed-fastener steel up to standing seam. Both ranges were set from the published cost rows below, and the totals are rounded to the nearest $100.
| Cost row | Figure | Source (year) |
|---|---|---|
| Tennessee re-roof, average | about $8,518 (range $6,703–$20,071) | This Old House, 2026 |
| Tennessee architectural shingles, per sq ft | about $5.05 | RoofObservations, 2026 |
| Tennessee impact-resistant shingles, per sq ft | about $6.25 | RoofObservations, 2026 |
| Tennessee exposed-fastener steel, per sq ft | about $8.45 | RoofObservations, 2026 |
| Knoxville re-roofing, per sq ft | about $7.36 | ContractorPlus, 2026 |
Real jobs move with things a calculator can't see: extra layers to tear off, soft decking, chimneys and skylights, ventilation work and how easy the roof is to reach. Treat the range as a starting point for a conversation with a roofer.
Using What You Learned
A range helps you plan, but it can't account for rotten decking, a second layer of shingles or tricky flashing around a chimney. For a firm number, ask for a free inspection. We pass your request to one independent local roofer, who measures the roof and writes up an itemized estimate you can compare line by line. The referral costs you nothing, and you can call (865) 555-0147 to start.
Want more detail first? Read the roof replacement cost guide for what drives the price, or take the repair-or-replace quiz if you're not sure the whole roof needs to go.