Metal Roof Cost Calculator
Metal lasts 2–3× as long as asphalt and earns insurance discounts in hail-prone markets — but installed cost is 2–3× too. This calculator filters the main cost calc to the two metal categories so you can compare standing seam against exposed-fastener corrugated on the same roof.
Your roof
This does not recommend cheap work blindly. It shows what the shortcut may save and what it can break.
Financing assumptions
A precise bid still requires a roof measurement, decking inspection, and current local material availability. Use this range to compare quotes — anything well outside it deserves a question.
Baseline full contractor scope
Use the main estimate as the defensible comparison point, then test specific savings paths one at a time.
- A complete roof quote should spell out tear-off, disposal, decking, dry-in, flashing, ventilation, permit, cleanup, and warranty.
- The cheapest bid is usually missing a scope line. The best bid makes tradeoffs visible.
- What exactly is included, excluded, and priced only as an allowance?
- What would you remove from the scope if I had to save money, and what would you refuse to remove?
Material / labor split (typical)
- Material: $18,480–$29,040 · $700–$1100/sq
- Labor: $12,197–$20,624
- Tear-off: $2,508–$3,960
- Decking surprise: $277–$871 (plans for ~198–396 sqft replacement)
- Flashing & penetrations: $360–$840
- Permit & dump: $250–$600
- Warranty premium: $2,029–$3,320
Financing estimate
Illustrative only. Real loan terms depend on credit, lender, and collateral type.
What's driving the price
- 50%Material — Asphalt is cheapest by sqft; metal and tile move the total significantly.
- 34%Labor — Steeper pitch, more stories, and cut-up roofs raise labor more than material.
- 7%Tear-off — Each existing layer adds dump fees and labor to remove cleanly.
- 6%Warranty premium — Extended workmanship and manufacturer-system warranties cost 5–15% more.
- 1%Penetrations & flashing — Each chimney, skylight, and pipe boot adds flashing labor and material.
Questions to ask each roofer
- Is your bid for tear-off and disposal of 1 layer?
- What's the per-sheet price for decking replacement if rot is found?
- Are starter strips, ridge cap, and ice/water shield itemized or bundled?
- What workmanship warranty is included, and is it transferable?
- Is the permit pulled in your name or mine? (Yours is the right answer.)
- Will you provide a certificate of insurance and current state contractor license?
- Is full-system manufacturer warranty offered (e.g., GAF Golden Pledge)?
- If I buy materials or use an installer-only scope, who owns shortages, returns, delivery damage, warranty registration, and code compliance?
- If you propose a roof-over, what code section allows it here and how did you verify the deck is sound?
- How many existing roof layers are there? If there are already two layers, tear-off is the real scope; do not create a third layer.
- Will you photograph tree-rub damage, trimmed branches, decking, flashing, pipe boots, chimney cap/flue details, and vent details before covering them?
- For a Class 3 or Class 4 impact roof, will you provide product-label photos and the carrier/TDI impact-resistant roofing form?
- For high-wind or FORTIFIED-style work, what nail pattern is included: six nails per shingle, 8d ring-shank deck nails at 6" o.c., and tighter gable-end fastening if required?
Standing seam vs exposed fastener — the real difference
Exposed-fastener / corrugated metal
Panels are screwed through the face, with neoprene gaskets sealing each fastener. $380–$620 per square material, 30–45 year lifespan. Cheaper to install, faster, lighter on the wallet. The catch: every fastener is a potential leak point. Gaskets harden and crack at 15–20 years; you'll replace some by year 25. Common on barns, agricultural buildings, low-cost residential.
Standing seam
Panels lock together at raised seams; clips that hold the panels to the deck are concealed under the seam. $700–$1,100 per square material, 40–60 year lifespan. No exposed fasteners means no gasket failure; the concealed-clip system also lets the metal expand and contract without backing fasteners out. This is what gets called "metal roofing" by most architects and high-end builders.
Total installed cost reality check
On a typical 2,400 sqft, 1-story, 6:12 hip roof in Houston:
- Architectural asphalt: $11–$16K typical range
- Exposed-fastener metal: $19–$28K typical range
- Standing seam: $28–$45K typical range
Steeper pitch and complex roofs hit metal harder than asphalt — install labor scales worse on metal. A cut-up Victorian with multiple dormers is asphalt territory; metal makes most sense on simpler roof geometry.
Where metal earns its premium
- Hail-prone markets. Class 4 impact-rated metal earns 15–35% insurance discounts in TX/OK. Over 30+ years that often pays for the upgrade.
- Hurricane / high-wind zones. Standing seam wind ratings to 140+ mph are routine; asphalt tops out around 130 with upgrades.
- Long-hold properties. If you'll own 25+ years, metal's lifecycle math wins. If you're selling in 5, asphalt is the right call.
- Hot climates with cool-roof pigments. Reflective metal coatings can drop attic temps 20–30°F. Real but not transformative for energy bills.
Where metal disappoints
- Hail dents. Metal doesn't fail from hail like asphalt does, but it dents. Cosmetic damage isn't covered by most warranties or by insurance after the install.
- Noise. Without proper underlayment + decking, metal is loud in rain. Done right (synthetic underlayment + structural decking + insulation) it's actually quieter than asphalt because the panels damp better. Done wrong, it's a tin roof.
- Modification cost. Adding a skylight or solar later is 3× more expensive on metal than on asphalt. Plan penetrations during the install.
- Aesthetic mismatch. A standing-seam roof on a traditional Houston ranch doesn't always read right. Drive your neighborhood — if no other home has metal, your resale audience may not value it.
About this calculator
Reviewed by Eurocraft, a Texas-licensed general contractor. Metal-install labor bands assume specialized crews; a generalist asphalt crew taking on a metal job is a common cause of premature failure.