Asphalt vs Metal Roof Cost Calculator — Lifetime Break-Even

See whether asphalt shingles or a metal roof is cheaper over the long haul — weigh the higher up-front install against the cost of re-roofing shingles every ~20 years.

Metal Roof wins

$4,500 cheaper

Metal Roof

$19,800

Asphalt Shingles

$24,300

Break-even

Year 41

Roof Size

Roof area

sqft

800 sqft

4000 sqft

Time horizon

15 yr

60 yr

Cost per sqft

Metal $/sqft installed

$/sqft

7 $/sqft16 $/sqft

Asphalt $/sqft installed

$/sqft

3 $/sqft8 $/sqft

Lifespan

Metal lifespan

40 yr70 yr

Asphalt lifespan

15 yr30 yr

Metal Roof wins

Saves $4,500 over 50 years · breaks even in year 41

Best

Metal Roof

$19,800

Up-front$19,800

Lasts50 years

Asphalt Shingles

$24,300

Up-front$8,100

Lasts20 years

Re-installs+2 ($16,200)

Total cost over 50 years

Metal Roof$19,800

Asphalt Shingles$24,300

Cumulative cost over time

Cumulative cost over time — crossover at year 41

What You'll Need

3PLUS HCN45SP 11 Gauge 15 Degree 3/4" to 1-3/4" Coil Roofing Nailer Pneumatic Roof Nail Gun

$98.884.6

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Guardian 00815 Rooftop Safety Kit - 50 ft Vertical Lifeline Assembly | Reusable Temper Anchor | Full Body Harness | Yellow Storage Bucket

$96.004.6

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Albion Engineering Company B26 B-Line Manual Cartridge Caulking Gun, 1/10 Gallon (10 oz), 26:1 Drive

$30.674.8

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Stainless Steel Garden Hoe Rake Lawn Rake Weeding Tool Gardening Hoe Head Fork Garden Supplies

$34.593.6

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Pterying 6.5ftx300ft Weed Barrier Landscape Fabric Heavy Duty, Premium 3oz Garden Geotextile Fabric, Outdoor Weed Blocker Fabric, for Driveway Mats, Erosion Control, Ground Cover Weed Barrier

$60.294.3

View on Amazon

3PLUS HCN45SP 11 Gauge 15 Degree 3/4" to 1-3/4" Coil Roofing Nailer Pneumatic Roof Nail Gun

$98.884.6

View on Amazon

Guardian 00815 Rooftop Safety Kit - 50 ft Vertical Lifeline Assembly | Reusable Temper Anchor | Full Body Harness | Yellow Storage Bucket

$96.004.6

View on Amazon

Albion Engineering Company B26 B-Line Manual Cartridge Caulking Gun, 1/10 Gallon (10 oz), 26:1 Drive

$30.674.8

View on Amazon

Stainless Steel Garden Hoe Rake Lawn Rake Weeding Tool Gardening Hoe Head Fork Garden Supplies

$34.593.6

View on Amazon

Pterying 6.5ftx300ft Weed Barrier Landscape Fabric Heavy Duty, Premium 3oz Garden Geotextile Fabric, Outdoor Weed Blocker Fabric, for Driveway Mats, Erosion Control, Ground Cover Weed Barrier

$60.294.3

View on Amazon

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Example Calculations

1Default 1,800 sq ft roof over 50 years

Inputs

Roof area1,800 sqft

Time horizon50 years

Metal cost$11/sqft installed

Asphalt cost$4.50/sqft installed

LifespansMetal 50 yr / Asphalt 20 yr

Result

Cheaper optionMetal roof — saves $4,500 over 50 yrs

Metal 50-year total$19,800

Asphalt 50-year total$24,300 (2 re-roofs)

Break-evenYear 41

Metal costs $19,800 once and lasts the full 50 years. Asphalt starts at $8,100 but re-roofs twice (years 20 and 40), reaching $24,300. Metal's flat line is overtaken at year 41 — a slow but real ~$4,500 win.

2Shorter 25-year stay

Inputs

Roof area1,800 sqft

Time horizon25 years

Metal cost$11/sqft installed

Asphalt cost$4.50/sqft installed

LifespansMetal 50 yr / Asphalt 20 yr

Result

Cheaper optionAsphalt — saves $3,600 over 25 yrs

Metal 25-year total$19,800

Asphalt 25-year total$16,200 (1 re-roof)

Break-evenNone — asphalt stays cheaper

Over just 25 years asphalt re-roofs only once ($16,200) and never gets caught — metal's $19,800 one-time cost stays higher. A shorter stay favors shingles.

3Premium metal vs cheap asphalt

Inputs

Roof area1,800 sqft

Time horizon50 years

Metal cost$16/sqft (premium standing seam)

Asphalt cost$3/sqft (3-tab)

LifespansMetal 50 yr / Asphalt 20 yr

Result

Cheaper optionAsphalt — saves $12,600 over 50 yrs

Metal 50-year total$28,800

Asphalt 50-year total$16,200 (2 re-roofs)

Break-evenNone — premium metal never pays back

At a premium $16/sqft, metal costs $28,800 — while cheap $3/sqft asphalt totals only $16,200 even after two re-roofs. Luxury standing-seam metal does not pay back; the metal win needs a moderate price gap.

Show all examples

Did You Know?

On a typical 1,800 sq ft roof in 2026, a metal roof runs about $19,800 installed ($11/sq ft) and lasts ~50 years, so you buy it once. Asphalt shingles cost about $8,100 ($4.50/sq ft) but last only ~20 years — over a 50-year horizon you re-roof twice (years 20 and 40), for ~$24,300 total. Metal ends up ~$4,500 cheaper, but the payback is slow: asphalt's cumulative cost only overtakes metal around year 41. Metal costs ~2.4× more up front, so buy it if you plan to stay 40+ years or want the resale and energy perks — not for a quick saving.

Frequently Asked Questions

Is a metal roof worth it compared to asphalt shingles?

Over a full roof lifetime, usually yes — but the payback is slow. On an 1,800 sq ft roof a metal roof costs ~$19,800 installed and lasts ~50 years, so you buy it once. Asphalt shingles cost ~$8,100 but last only ~20 years; over 50 years you re-roof them twice, reaching ~$24,300. Metal wins by ~$4,500, but not until around year 41. If you plan to move within 15-20 years, cheaper shingles are the smarter buy. Metal makes sense for a forever home, or when you value its energy savings, fire rating, and resale appeal.

Metal: ~$19,800 installed ($11/sqft), lasts ~50 years
Asphalt: ~$8,100 installed ($4.50/sqft), lasts ~20 years
Over 50 years you re-roof asphalt twice → ~$24,300
Metal wins by ~$4,500, but only after ~year 41
Worth it if you stay 40+ years; not for a quick flip

Roof	Up-front	Lifespan	Re-roofs	50-Yr Total
Metal	$19,800	50 yrs	0	$19,800
Asphalt shingle	$8,100	20 yrs	+2	$24,300
Metal @ $16/sqft	$28,800	50 yrs	0	$28,800

How often do you replace asphalt shingles vs a metal roof?

Asphalt shingles last about 15-30 years (≈20 typical for architectural shingles in a moderate climate), while a metal roof lasts about 40-70 years (≈50 typical). That means one metal roof outlasts roughly two to three asphalt re-roofs. Each asphalt replacement costs about the same as the original install again — around $8,100 on an 1,800 sq ft roof — plus tear-off and disposal of the old shingles. A metal roof avoids those repeat tear-offs, which is where its long-run savings come from even though it costs more on day one.

Asphalt shingles last ~15-30 years (≈20 typical)
Metal roofs last ~40-70 years (≈50 typical)
One metal roof ≈ 2-3 asphalt re-roofs
Each asphalt re-roof ≈ the original ~$8,100 again
Tear-off and disposal add to every asphalt replacement

What is the break-even year for a metal roof?

Break-even is the year the asphalt roof's running cumulative cost — original install plus each re-roof — climbs above the metal roof's one-time price. In the default case metal sits flat at $19,800 while asphalt steps up to $8,100, then $16,200 at year 20, then $24,300 at year 40. Asphalt's line crosses above metal around year 41, so metal only pays back if you keep the home past then. A bigger metal price premium pushes break-even later or removes it entirely, while energy and resale benefits not counted here pull real-world payback earlier.

Default break-even: ~year 41 (asphalt's 2nd re-roof)
Before year 41 asphalt's cumulative cost stays lower
Stay under ~20 years → asphalt is clearly cheaper
Bigger metal premium pushes break-even later or never
Energy + resale perks (not counted) shorten real payback

What does a metal roof add beyond the sticker price?

This calculator compares pure install and re-roofing cost, but a metal roof carries real-world value the numbers leave out. Reflective metal can cut summer cooling bills roughly 10-25% in hot climates, it often lifts resale value and curb appeal, its Class-A fire rating may lower insurance in wildfire areas, and it is fully recyclable instead of sending old shingles to landfill. Because none of those perks are in the ~year-41 break-even above, the true payback for a metal roof is usually sooner than the cost-only comparison suggests.

Reflective metal can cut cooling bills ~10-25% in hot climates
Often boosts resale value and curb appeal
Class-A fire rating may lower insurance premiums
100% recyclable vs asphalt landfill waste
These perks are NOT in the cost model — real payback is sooner

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Related Resources

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Last Updated: Jun 16, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

Asphalt vs Metal Roof Cost Calculator — Lifetime Break-Even

Roof Size

Cost per sqft