Aluminum roofing is a lightweight metal roof that will not rust, which makes it the default pick for homes within about one mile of salt water. Installed, it typically runs $9 to $18 per square foot, roughly 20% to 30% more than a comparable steel roof. Aluminum is sold by decimal thickness (.024, .032, .040 inch) rather than the steel gauge scale, and it comes as standing seam panels, interlocking shingles, or stamped shakes.
The reason to spend the premium is corrosion. Aluminum forms a self-healing oxide layer the moment its surface is exposed, so salt air and constant humidity that eat through galvanized steel and even Galvalume have little effect. For a coastal or lakeside home, that difference decides the roof.
How much does an aluminum roof cost in 2026?
An aluminum roof costs about $9 to $18 per square foot installed in 2026, or roughly $18,000 to $45,000 on a typical 2,500 square foot roof. Material alone runs $3.50 to $6.50 per square foot, with the rest covering labor, underlayment, trim, and tear-off. Aluminum standing seam sits at the higher end; aluminum shingles run slightly less.
Price moves with thickness, profile, and coating. A mechanically seamed .040 inch panel with a Kynar 500 (PVDF) finish costs far more than a .024 inch exposed-fastener panel with a basic polyester paint. Coastal details like heavier gauge and hidden clips push the number toward the top of the band.
| Aluminum roof type | Installed cost per sq ft | 2,500 sq ft roof |
|---|---|---|
| Exposed-fastener panel (.024 in) | $9 to $12 | $18,000 to $27,000 |
| Aluminum shingles (interlocking) | $10 to $15 | $22,000 to $34,000 |
| Standing seam (.032 to .040 in) | $12 to $18 | $28,000 to $45,000 |
Aluminum costs roughly 20% to 30% more than steel of the same thickness and finish. For a full cross-material breakdown, see our metal roof cost guide.
Aluminum roofing cost per square
Contractors usually quote metal roofs by the square, where one square equals 100 square feet. In per-square terms an installed aluminum roof runs about $900 to $1,800, tracking the same $9 to $18 per square foot range. Exposed-fastener panels sit near the bottom, standing seam near the top, and shingles and shakes in between. Material alone is roughly $400 to $1,100 per square depending on profile and finish, per Fixr’s 2026 aluminum roof data.
| Aluminum profile | Installed cost per square (100 sq ft) | Notes |
|---|---|---|
| Corrugated / exposed-fastener panel | $900 to $1,200 | Lowest cost, screw-through fasteners |
| Aluminum shingles | $1,000 to $1,500 | Four-way interlock, slate or shake looks |
| Aluminum shakes | $1,100 to $1,800 | Stamped cedar-shake profile, wide price spread |
| Standing seam | $1,200 to $1,800 | Hidden clips, coastal and long-run standard |
Figures are installed estimates; local labor, roof pitch, and complexity move the final number, so gather multiple quotes. Budget for matching rainware too, since our rain gutter cost guide lines up aluminum, copper, and steel options. Metal shake systems in particular span widely, from about $700 to $3,000 per square across all metals per Angi’s 2026 data, with aluminum falling toward the lower half.
Types of aluminum roofing: standing seam, shingles, and shakes
Aluminum roofing comes in four main forms: standing seam panels, interlocking shingles, stamped shakes, and corrugated exposed-fastener panels. Standing seam hides its fasteners under raised seams and sheds water best; shingles and shakes stamp aluminum into slate, tile, or cedar-shake looks that suit complex rooflines; corrugated panels are the budget, screw-through option common on outbuildings. All four resist rust equally because the metal itself does not corrode.
Aluminum shakes are pressed to mimic split cedar shakes while weighing a fraction as much and carrying a Class A fire rating when tested as an assembly. They give a rustic look without the rot, insect, or fire risk of real wood, and they lock together for wind resistance. The same corrosion-proof aluminum stock also forms exterior metal wall panels and metal siding panels, so a coastal home can carry one metal across roof and walls. For the shingle and shake landscape across metals, see our modern metal shingles guide, and to compare complete systems our best metal roofing for homes roundup.
Aluminum vs steel roofing: which is right for your home?
Aluminum wins on corrosion resistance and weight; steel wins on price and dent resistance. Aluminum will not rust, so it is the better metal near salt water or in constant humidity. Steel is harder and cheaper, so it makes sense inland where corrosion is not the main threat and hail or falling debris is.
Steel is the stiffer, harder metal, so a steel panel resists denting from hail and foot traffic better than aluminum of the same thickness. Aluminum is softer and about a third the weight, which eases handling and reduces structural load, but it dings more easily. The choice usually comes down to your climate, not a universal winner.
| Factor | Aluminum | Steel (galvanized / Galvalume) |
|---|---|---|
| Rust resistance | Immune, no coating needed | Relies on zinc or Galvalume coating |
| Best environment | Coastal, high humidity | Inland, hail-prone |
| Weight | Lighter (about 1/3 of steel) | Heavier, stiffer |
| Dent resistance | Lower (softer metal) | Higher |
| Cost per sq ft installed | $9 to $18 | $5 to $12 |
| Typical lifespan | 40 to 70 years | 40 to 60 years |
For a full head-to-head, see our aluminum vs steel roofing comparison. Our steel roofs guide covers galvanized vs Galvalume and gauge in depth if steel is on your shortlist.
Why aluminum beats steel on the coast
Aluminum is the standard coastal metal roof because it does not corrode in salt air. When aluminum is exposed to oxygen it forms a thin, tight aluminum-oxide layer that seals the surface and re-forms if scratched. Salt spray cannot rust what has no iron to rust. Steel and Galvalume rely on a sacrificial zinc-based coating that salt slowly consumes, especially at cut edges and fastener holes.
A practical rule many roofers use: if the home sits within roughly one mile of the ocean, an intracoastal waterway, or a marsh, specify aluminum. Beyond that band, steel or Galvalume usually holds up fine, and the price gap favors steel.
Watch galvanic corrosion. Pairing aluminum with dissimilar metals like copper roofing, or using standard steel fasteners, can trigger galvanic corrosion where the two metals meet in the presence of salt moisture. Use aluminum or coated stainless fasteners and keep aluminum isolated from copper flashing and gutters. If you are matching rainware to the roof, our steel vs aluminum gutters comparison weighs the same corrosion trade-offs. This is the single detail coastal installers most often get wrong.
Aluminum roofing thickness: why it is not measured in gauge
Aluminum is specified in decimal inches, not the gauge numbers used for steel. Because aluminum is a different metal, the steel gauge scale does not apply, so panels are called out as .024, .032, or .040 inch. Thicker aluminum resists oil canning and denting but costs more. Standing seam needs more body than an exposed-fastener panel to hold a crisp seam.
Common minimums: exposed-fastener aluminum panels start around .024 inch, and aluminum standing seam should be at least .032 inch, with .040 inch preferred for wide pans, high-wind coasts, and a flatter, dent-resistant look.
| Aluminum thickness | Typical use | Notes |
|---|---|---|
| .019 in | Light-duty panels, some shingles | Budget tier, more prone to oil canning |
| .024 in | Exposed-fastener corrugated / ribbed | Common residential minimum |
| .032 in | Standing seam minimum | Holds seams well, coastal standard |
| .040 in | Premium standing seam | Best for wide pans and high wind |
If you are comparing gauge across metals, our metal roofing types overview lines up panels, profiles, and metals side by side.
Aluminum shingles vs aluminum standing seam
Aluminum comes in two main forms: standing seam panels with hidden fasteners and raised interlocking seams, and aluminum shingles that mimic slate, shake, or tile and lock together on all four edges. Standing seam sheds water best and suits low and steep slopes; shingles handle complex rooflines and steep, cut-up roofs where long panels waste material.
Standing seam is the premium choice for wind and water performance because nothing penetrates the panel face. Aluminum shingles trade some of that for design flexibility and easier work around dormers, hips, and valleys. Both carry 40-plus-year lifespans when installed correctly.
- Aluminum standing seam: hidden clips, best water shedding, cleanest look, higher cost, ideal on coasts and long straight runs.
- Aluminum shingles: four-way interlock, slate or shake looks, better for complex roofs, slightly lower cost, more seams.
Pros and cons of aluminum roofing
Aluminum’s core advantage is corrosion immunity at low weight; its main drawbacks are cost and softness. It is one of the most sustainable roofing metals, with roughly 95% of aluminum roofing made from recycled content and the panels fully recyclable at end of life. Weigh the trade-offs against your climate and budget before committing.
- Pros: will not rust, lightweight (about a third of steel), 40 to 70 year lifespan, reflective for lower cooling loads, ~95% recycled content and recyclable, low structural load.
- Cons: 20% to 30% pricier than steel, dents more easily, can oil-can in thin gauges, expands and contracts more (needs proper clip and fastener detailing), risk of galvanic corrosion if paired with copper or steel hardware.
If you are still deciding between metal and asphalt overall, compare lifespans and cost in our residential metal roofing guide.
How long does an aluminum roof last?
An aluminum roof lasts 40 to 70 years, and often longer in coastal settings where steel would fail early. Because there is no rust to undermine the metal, the practical limits are the paint finish, the fasteners, and the seam or clip system rather than the aluminum itself. A quality PVDF (Kynar 500) finish holds color for 30-plus years. Our roof lifespan by material report sets those numbers against asphalt, tile, and other systems.
Lifespan depends on thickness, finish quality, and detailing. A .032 or .040 inch standing seam roof with a PVDF finish and stainless or aluminum fasteners outlasts a thin exposed-fastener panel with a polyester paint, whose exposed screws and neoprene washers usually need attention around year 15 to 20. When a factory finish finally chalks, a field-applied aluminum roof coating can extend service life rather than forcing a tear-off.
Aluminum roofing: frequently asked questions
Is aluminum roofing better than steel?
Aluminum is better for coastal and high-humidity homes because it will not rust, while steel is better inland where its lower price and stronger dent resistance matter more. Aluminum costs about 20% to 30% more than steel of the same thickness. The right pick depends on your climate, not a single universal winner.
How much does an aluminum roof cost?
An aluminum roof costs about $9 to $18 per square foot installed in 2026, or roughly $18,000 to $45,000 on a 2,500 square foot roof. Material alone runs $3.50 to $6.50 per square foot. Standing seam sits at the high end, while exposed-fastener panels and aluminum shingles cost less.
How much does aluminum roofing cost per square?
In per-square terms (one square equals 100 square feet), installed aluminum roofing runs about $900 to $1,800. Corrugated exposed-fastener panels are cheapest at roughly $900 to $1,200, shingles and shakes fall in the middle, and standing seam tops the range at $1,200 to $1,800. Material alone is about $400 to $1,100 per square.
Why is aluminum used for coastal roofs?
Aluminum forms a self-healing oxide layer that seals its surface, so salt air cannot rust it. Steel and Galvalume rely on a zinc-based coating that salt slowly consumes at cut edges and fasteners. Many roofers specify aluminum for any home within about one mile of salt water or a marsh.
What thickness should an aluminum roof be?
Aluminum is measured in decimal inches, not steel gauge. Exposed-fastener panels start around .024 inch, aluminum standing seam should be at least .032 inch, and .040 inch is preferred for wide pans, high-wind coasts, and a flatter, more dent-resistant panel that holds its seams cleanly over long runs.
How long does an aluminum roof last?
An aluminum roof lasts 40 to 70 years, often longer on the coast where steel corrodes early. Because there is no rust, lifespan is limited by the paint finish, fasteners, and seam system. A PVDF (Kynar 500) finish holds color for 30-plus years on quality installs.
Reviewed by The Roofing Brief Team. Last reviewed August 2026.