Metal Roof Cost (2026)

On total cost of ownership, often yes. A 30-year asphalt shingle roof in the Southeast realistically lasts 17-22 years before needing replacement — so you're buying 2.5 to 3 of them in the lifespan of one metal roof. The math turns interesting around year 28: if you'd bought asphalt twice ($16k + $20k inflation-adjusted = $36k), you've spent more than the original $32k standing seam install. On homes you plan to keep 15+ years in a hail-active region (Colorado Front Range, North Texas, Oklahoma), metal also reduces insurance premiums by 15-35% with most carriers. The Class 4 impact-rated stone-coated steel products specifically.

Standing seam, almost every time. Corrugated panels (the wavy or trapezoidal sheets you see on agricultural buildings) use exposed fasteners — screws driven through the panel face into the deck. Every screw is a potential leak path in 15-20 years when the neoprene washers degrade. Standing seam has hidden fasteners under the seam, so no penetrations on the weather plane. Corrugated is right for outbuildings, garages, and lower-budget structures where the homeowner is okay re-screwing the fasteners every 12-18 years. For a primary residence in a high-rain or high-snow region, standing seam is the only metal type insurance carriers consistently underwrite at the lowest premium.

Gauge measures thickness — lower number means thicker metal. 24-gauge is 0.0239" thick, 26-gauge is 0.0179". The 24-gauge panel is about 33% more rigid and stands up better to oil-canning (the visible waviness on long flat panels). For standing seam over 16 feet in panel length, spec 24-gauge or you'll see the waves in flat sunlight. Material premium for 24-gauge vs 26-gauge is about $0.40-$0.65/sqft. For corrugated agricultural panels, 26-gauge is fine because the corrugations add rigidity.

Most building codes allow one layer of metal over existing shingles, but most reputable contractors won't do it. Three reasons: (1) the underlying decking can't be inspected, so soft spots, popped nails, and rot continue degrading underneath the new roof; (2) the metal panels telegraph the underlying texture, so you see shingle ridges through the surface in raking light; (3) most metal manufacturers (Englert, Sheffield, Drexel) require direct-to-deck install for warranty validity. Tear-off adds $1.50-$3.50/sqft but the warranty alone is usually worth more.

This is the most common worry and the most outdated. Modern metal panels are coated with Kynar 500 PVDF paint that reflects 70-90% of solar IR radiation — they actually run cooler than asphalt in direct sun. The Cool Roof Rating Council (CRRC) certifies products that meet specific SRI (Solar Reflectance Index) thresholds; most ENERGY STAR-rated metal roofs hit SRI 64 or higher. The bigger comfort variable is attic ventilation: a poorly ventilated attic gets hot under any roof type. A well-vented attic under a metal roof with reflective coatings runs 15-25°F cooler than the same attic under dark asphalt shingles, which translates to roughly 10-25% lower cooling bills in Climate Zones 1-3.

Aluminum and softer metals can dent visibly in hail of 1.5" or larger, but the dents are cosmetic — they don't compromise the weather barrier. Most carriers will pay to repair functional damage but exclude "cosmetic" hail damage in metal roof endorsements (the actual policy language is something like "no payment for hail damage unless the damage affects the roof's ability to shed water"). If you live in hail country (Colorado, North Texas, Oklahoma, Nebraska) and want full cosmetic coverage, you either need a special endorsement (usually $200-$600/yr extra) or you need to step up to stone-coated steel, which has the textured granular surface and doesn't show hail dings.