Metal roofs cost more upfront but last two to three times longer than asphalt shingles, making them cheaper over 30 years in most climates.

A metal roof typically costs $8 to $15 per square foot installed, while asphalt shingles run $3 to $5 per square foot. On a 2,000-square-foot roof, that means metal costs roughly $16,000 to $30,000 versus $6,000 to $10,000 for shingles. But metal roofs last 40 to 70 years depending on the material and climate, while asphalt shingles last 15 to 25 years. If you stay in the house long enough, metal wins on total cost. If you sell in 10 years, shingles were the cheaper choice.

The real difference comes down to your climate, how long you plan to stay, and what breaks first. Metal reflects heat better in hot climates and sheds snow faster in cold ones. Shingles are easier to repair piecemeal, while metal roof damage often means replacing a whole panel. Neither is objectively "better"—they solve different problems.

Key Takeaways

  • Metal roofs cost two to four times more to install but last 40 to 70 years, while asphalt shingles cost less upfront but need replacement every 15 to 25 years.
  • In hot climates, metal roofs reduce cooling costs by 10 to 25 percent because they reflect sunlight; in cold climates, the savings are smaller.
  • Metal roofs are noisier in heavy rain unless installed with proper insulation and decking underneath.
  • Asphalt shingles are easier and cheaper to repair one section at a time, while metal roof repairs often require replacing an entire panel.
  • Resale value increases slightly with a metal roof in most markets, but not enough to recover the full installation cost within 10 years.

How long each type actually lasts

Asphalt shingles degrade from the moment they're installed. UV light breaks down the binder that holds the granules in place, usually within 15 to 20 years in sunny climates. In shaded areas or cooler regions, they can stretch to 25 years. After that, they curl, crack, and lose granules. Replacement is the only option—patching a few shingles buys time but doesn't stop the underlying decay.

Metal roofs don't degrade the same way. Standing-seam metal (the most common type) can last 40 to 70 years depending on the metal type and local weather. Galvanized steel lasts 40 to 50 years. Aluminum lasts 50 to 60 years. Copper and zinc can last 70 years or longer. The main failure point is the seams—the joints where panels connect—which can separate or corrode if the sealant fails. Rust is possible but rare with modern coatings. Most metal roofs fail because of installation mistakes or storm damage, not age.

Installation cost and what it includes

Asphalt shingle installation is straightforward: remove old shingles, inspect the deck, install underlayment, nail down new shingles, and flash the valleys and penetrations. The work takes a few days. Most roofers charge $3 to $5 per square foot, and labor is usually 40 to 50 percent of that cost. A 2,000-square-foot roof costs $6,000 to $10,000 total.

Metal roof installation is slower and more technical. The deck must be solid and level. Underlayment goes down first, then the metal panels are screwed or clipped in place. Seams are sealed. Flashing around chimneys, vents, and skylights requires custom work. The whole job takes a week or more. Labor costs $5 to $10 per square foot, often more than the material itself. A 2,000-square-foot metal roof runs $16,000 to $30,000 installed. Some contractors charge by the panel rather than by the square foot, so get multiple quotes and ask what's included—some don't include removal of the old roof.

Energy savings and climate impact

Metal roofs reflect 50 to 90 percent of sunlight, depending on the finish and color. Asphalt shingles absorb most of it. In hot climates like Arizona, Florida, or Southern California, this matters. Studies show metal roofs can reduce cooling costs by 10 to 25 percent. In a house that costs $200 a month to cool, that's $20 to $50 in savings per month, or $240 to $600 per year. Over 40 years, that's $9,600 to $24,000 in energy savings—enough to offset the higher installation cost.

In cold climates, the advantage shrinks. Metal roofs don't insulate better than shingles; they just reflect heat differently. In winter, you want the roof to absorb heat, not reflect it. The energy savings in Minnesota or Maine are minimal—maybe 5 percent. Some homeowners in snowy climates prefer metal because it sheds snow faster, reducing the weight load and the risk of ice dams, but that's a durability benefit, not an energy one.

Noise, maintenance, and repair differences

Metal roofs are louder in heavy rain and hail. The sound travels through the metal panels and into the attic. Proper installation includes a layer of insulation and solid decking underneath, which dampens the noise significantly. Cheap installations with thin decking sound like a drum. Ask contractors whether they include a noise-dampening layer and listen to samples if possible.

Asphalt shingles require annual inspection and occasional maintenance: clearing debris, checking for curling or missing granules, and replacing damaged shingles. A few missing shingles cost $100 to $300 to replace. Metal roofs need less frequent inspection but more specialized repairs. A dented or rusted panel usually means replacing the whole panel, which costs $300 to $800 depending on the metal type. Seams can separate and need resealing, a job for someone trained in metal roofing.

Resale value and insurance impact

A metal roof adds to home value, but not dollar-for-dollar with the installation cost. Most studies show a metal roof adds 1 to 3 percent to the sale price. On a $400,000 house, that's $4,000 to $12,000. If the metal roof cost $20,000 to install, you recover 20 to 60 percent of the cost at resale. The recovery is higher in regions where metal roofs are common (the Pacific Northwest, parts of the South) and lower in regions where they're rare.

Insurance companies sometimes offer discounts for metal roofs because they're more resistant to fire and hail damage. The discount varies by insurer and location—typically 5 to 15 percent off the roof portion of your homeowners policy. Ask your insurance agent for a quote before deciding. Over 40 years, a 10 percent discount on roof coverage could save $2,000 to $5,000, depending on your premium.

When shingles make more sense than metal

Choose asphalt shingles if you plan to sell within 10 years, live in a mild climate where roofs last 20+ years, or have a tight budget. Shingles are also the better choice if your roof has complex angles, multiple penetrations, or skylights—metal roofing on complicated shapes costs more and has more seams to fail. If you're renting or leasing the property, shingles are standard and expected by lenders.

Shingles also work better if you need repairs fast. A roofer can patch a few shingles in an afternoon. Metal roof repairs often require ordering panels and waiting for a specialist. If storm damage is common in your area, shingles' repairability is an advantage.

When metal roofs make more sense than shingles

Choose metal if you plan to stay 20+ years, live in a hot climate, or want to minimize maintenance. Metal is also better if your area has frequent hail, high winds, or heavy snow—metal resists all three better than shingles. If you're building new or doing a full roof replacement anyway, the cost difference shrinks because you're paying for removal and installation either way.

Metal also makes sense if you have a straightforward roof shape with few penetrations, because installation is faster and cheaper per square foot. If you're concerned about fire risk (wildfire zones, cedar shake neighborhoods), metal is safer. And if you want the lowest long-term cost over 40+ years and can afford the upfront expense, metal wins the math.

Frequently Asked Questions

Will a metal roof make my house too hot in summer?

No. Metal reflects heat rather than absorbing it, so the attic stays cooler. Proper ventilation and insulation matter more than the roof material itself. A metal roof with poor attic ventilation will be hotter than a shingle roof with good ventilation, but a well-installed metal roof reduces cooling costs in most hot climates.

Can I install a metal roof over my existing shingles?

Sometimes, but not always. Most roofers recommend removing old shingles first because you can't inspect the deck underneath, and the added weight stresses the structure. Some metal roofing systems are designed for re-roofing over shingles, but this costs almost as much as removal and adds risk. Ask your contractor whether your deck can handle the weight.

Do metal roofs rust?

Modern metal roofs have protective coatings that prevent rust for decades. Galvanized steel, aluminum, and copper all resist corrosion when installed correctly. Rust happens when the coating is damaged (by poor installation, tree branches, or hail) and the bare metal is exposed to moisture. Proper maintenance and inspection catch this early.

What's the difference between standing-seam and metal shingles?

Standing-seam metal (vertical panels with raised seams) lasts longer, costs more, and is more professional-looking. Metal shingles (shaped like asphalt shingles) cost less and look more traditional but don't last as long and have more seams that can fail. Standing-seam is the better long-term choice if budget allows.

Will my homeowners insurance go down with a metal roof?

Maybe. Some insurers offer 5 to 15 percent discounts for metal roofs because they're more fire and hail resistant. Call your agent and ask for a quote before installing. The discount varies by company and location, so it's worth checking before you commit to the expense.