Metal Roof Shingles Disadvantages: The Honest List

What are the disadvantages of metal roof shingles?

The main disadvantages of metal roof shingles are a high upfront cost (often two to three times asphalt), rain and hail noise, denting on softer metals, oil canning on flat profiles, fastener loosening from thermal movement, corrosion at cut edges, and repairs that are hard to color match once a profile is discontinued. Most of these are manageable with the right product and installer, but they are real trade-offs against asphalt.

Here is the short list before the detail below:

• Cost: roughly $9 to $16 per square foot installed for stone-coated or stamped metal shingles, versus about $4.50 to $7 for architectural asphalt.
• Noise: louder in heavy rain and hail without solid decking and underlayment.
• Denting: aluminum and thinner-gauge steel show hail and branch impacts.
• Oil canning: visible waviness, mostly on flat metal panels rather than textured shingles.
• Repairs: matching a faded or discontinued shingle profile years later is difficult.
• Corrosion: cut edges, scratches, and contact with dissimilar metals can rust.

The upfront cost is two to three times asphalt

Cost is the disadvantage most homeowners hit first. Metal roof shingles run roughly $9 to $16 per square foot installed depending on the metal, profile, and region, while architectural asphalt shingles sit near $4.50 to $7. On a typical 1,700 square foot roof that gap can mean $12,000 or more in added spend before any tear-off or deck work.

The premium comes from the material, the specialized labor, and the trim and accessory package a metal system needs. Payback depends on how long you keep the house, because the extra lifespan only pays off if you stay past the point where a second asphalt roof would have been due. For a short-term owner in a mild climate, the math often favors asphalt.

Cost ranges vary by market, roof complexity, and metal thickness. See our full breakdown of what a metal roof costs and how the numbers move with pitch and gauge.

Metal roofs are louder in rain and hail

Metal roof shingles can be noisier than asphalt during heavy rain, hail, or falling debris. The sound is loudest when metal is installed over open framing or thin decking with only felt beneath it. A shingle profile over solid plywood or OSB decking, plus a synthetic underlayment and an insulated, ventilated attic, dampens most of the drumming to a level many owners stop noticing.

Stone-coated steel shingles are quieter than bare stamped metal because the stone granules break up impact sound. If noise is a concern, the fix is specified during install, not after. To reduce it:

1. Install over solid decking, not spaced battens alone.
2. Add a synthetic or peel-and-stick underlayment layer.
3. Choose a granule-coated or textured shingle profile over a flat panel.
4. Keep attic insulation at the code R-value for your climate zone.

Softer metals dent from hail and branches

Denting is a genuine drawback, and it is worse on softer or thinner metal. Aluminum shingles and 29-gauge steel show hail dimples and branch impacts more readily than 26-gauge steel or stone-coated products, whose granular surface hides minor marks. Everyday hail rarely penetrates a metal roof, but a severe storm with large stones can leave cosmetic dents that do not leak yet still bother owners.

This matters for insurance too. A dented metal roof is often functional, so carriers may treat the damage as cosmetic and decline a full replacement. Our guide to metal roof hail damage covers where the cosmetic versus functional line usually falls and how claims tend to play out.

Oil canning shows waviness on flat profiles

Oil canning is the visible waviness or oil-slick look that appears across broad flat areas of metal. It is a cosmetic issue, not a structural failure, and it shows up far more on flat standing seam pans than on textured or stamped shingles. Metal roof shingles with a shake, tile, or slate profile break the surface into small facets, so oil canning is one metal drawback that shingle products largely sidestep.

Where it does appear, it is driven by tight fastening, thin gauge, and long uninterrupted panels. Striations, tension-leveled metal, and heavier gauge reduce it but rarely remove it entirely.

Thermal movement can loosen fasteners

Metal expands and contracts with temperature swings, and over years that movement can back out exposed fasteners or fatigue sealant. Exposed-fastener systems, where screws pass through the metal face into the deck, are the most exposed to this because every washer is a potential leak point once it loosens or the rubber gasket ages. Hidden-fastener and clip-fastened shingle systems that let the metal float move this risk out of the picture.

The practical consequence is a maintenance rhythm asphalt does not have: periodic checks of fasteners, sealant, and penetrations, and a re-screwing or re-sealing job somewhere around the 15 to 20 year mark on exposed-fastener panels.

Repairs and color matching are the hidden headache

This is the disadvantage most competitor articles skip. Metal roof shingles are made of many small interlocking pieces, and matching one years after install is harder than swapping an asphalt shingle. Finishes fade slowly in UV, so a new piece rarely matches the weathered field. If the manufacturer discontinues a profile or color, a clean repair may require sourcing salvage or replacing a whole slope for appearance.

Removing and reinstalling interlocked metal shingles is also more labor than lifting a few asphalt tabs, because pieces lock into neighbors on multiple edges. Budget for a specialist call-out rather than a quick handyman fix, and keep a few spare pieces from the original install if the installer will leave them.

Corrosion at cut edges and dissimilar metals

Metal roofing resists rust well as a coated surface, but the protection is thinnest at cut edges, scratches, and drill points. Coastal salt air accelerates rust on exposed steel edges, which is why aluminum or heavily coated products are specified near the ocean. Galvanic corrosion is a second, quieter risk: when dissimilar metals touch, such as copper flashing against steel or the wrong fastener metal, one corrodes faster.

Good detailing controls both. Sealed and hemmed edges, compatible fasteners and flashings, and touch-up on field cuts keep corrosion from starting. It is a workmanship-dependent drawback, which loops back to the installer problem below.

Finding a qualified installer is harder

Fewer crews install metal shingles well than install asphalt, so vetting matters more and the labor costs more. A poor metal install shows up as oil canning, leaks at fasteners and flashings, or corrosion at botched cuts, and those defects are expensive to unwind. The pool of experienced metal installers is smaller in many regions, which can also mean longer scheduling and higher bids.

Ask for metal-specific references, manufacturer certification for the exact product, and photos of finished valleys, hips, and penetrations. For the full picture of how metal stacks up against the alternative most homeowners weigh it against, see our metal versus asphalt shingle roof comparison.

Which disadvantages are overblown?

Several commonly cited metal roof drawbacks do not hold up. Metal does not attract lightning, and it is non-combustible, so it does not raise strike risk. A metal roof is not meaningfully hotter in summer; reflective and cool-rated finishes usually run cooler than dark asphalt. These are worth separating from the real trade-offs so the decision rests on cost, noise, denting, and repairs rather than myths.

It is also fair to weigh the drawbacks against the payoff. The genuine benefits of metal roofing, longer lifespan, fire and wind resistance, low routine upkeep, and recyclability, are why buyers accept the cost premium in the first place. Metal roofing advantages and disadvantages are two sides of the same purchase, and the right call depends on your climate, budget, and how long you plan to stay.

Metal shingles vs standing seam: which has more drawbacks?

Metal roof shingles and standing seam share the metal drawbacks but not evenly. Shingles hide oil canning and dampen noise better because of their broken, textured surface, and stone-coated versions resist visible denting. Standing seam wins on the repair and fastener side, because long clip-fastened panels have fewer seams to fail and a simpler field to match, though a damaged panel can mean replacing a full run.

If the look of shingles or tile is the goal, the profile choices are covered in our guide to metal roofs that look like shingles. For the broader picture on materials and how long each actually lasts in the field, our roofing material lifespan report tracks real-world numbers against marketing claims.

Reviewed by The Roofing Brief Team. Last reviewed July 2026.