How much does a metal roof cost?

Why is the range so wide?

Because “metal roof” covers two systems that age completely differently, and the cheaper one is not a cheaper version of the more expensive one.

Exposed-fastener panel — corrugated or ribbed sheet, screwed straight through the face into the deck, with a neoprene washer under each screw head. Fast to install, and the fasteners are visible in rows across the roof.

Standing seam — panels joined at raised seams with concealed clips, so nothing penetrates the weather surface. More material, far more labour, and considerably more skill at the flashings.

The price gap is mostly labour and detailing, not metal. It buys you a roof with no gasket to fail.

What drives the number on your house?

Pitch and complexity. Metal panels are cut to length per run, so valleys, hips, dormers and skylights each add a cut, a flashing and time. A simple gable is the cheap case.

Which metal. Steel is the baseline. Aluminium costs more and is the right answer near salt water. Copper and zinc are architectural money.

Coating. A premium fluoropolymer finish holds its colour far longer than an economy paint system and is a meaningful part of why two steel quotes differ.

Tear-off. Removing the old covering, and any decking replacement, which should be quoted as a per-sheet price rather than left open.

Access. A two-storey roof with no truck access costs more than a ranch with a driveway to the eave.

Check any bid’s square count against your own before comparing prices — use the roof area calculator. A roofing square is 100 square feet of roof surface, not of floor area.

Is metal actually more expensive than asphalt?

Per square, yes, by a wide margin. Per year of service, much less so.

Architectural asphalt at $550 a square lasting 25 years is about $22 per square per year. Standing seam at $1,400 lasting 55 years is about $25. The gap narrows to almost nothing, and the metal roof means one fewer tear-off while you own the house.

That comparison only holds if you stay. If you are selling in five years, you are paying the whole premium and leaving the payback to the buyer.

Does a metal roof lower my insurance?

Sometimes, and never assume it.

Some carriers in some states discount for Class A fire rating or for a Class 4 impact rating, both of which good metal systems can achieve. Availability is carrier- and state-specific.

Worth knowing before you buy for that reason: metal dents under hail without losing watertightness. Some carriers treat hail dents on metal as cosmetic by definition, and a few policies now carry an explicit cosmetic damage exclusion. If you are in hail country, read that endorsement before you spend the premium — see denials and appeals.

What should the bid itemize?

Panel type and gauge, the coating system, the fastening method, the underlayment, all flashing as new, the trim, the ridge and eave details, ventilation, tear-off and disposal, and a per-sheet decking price.

For exposed-fastener specifically, ask what the fastener schedule is and what the washer material is, because those washers are what will eventually fail. See hiring a roofer for how to read the rest of the bid.

Where the numbers come from

Every figure here is a range from a named Tier 3 cost aggregator, labelled an estimate. Published roofing costs disagree by close to a factor of two because labour varies several-fold across the country, so we publish ranges and name sources rather than averaging them into a false precision. Get three local bids before committing to anything.

Common mistakes

• Comparing an exposed-fastener quote to a standing seam quote. They are not the same product and the cheaper one has gaskets that will need attention in twenty years.
• Buying metal for the insurance discount without checking. It is carrier- and state-specific, and a cosmetic damage exclusion can cut the other way.
• Ignoring the coating. Two steel roofs at different prices are often the same steel with very different paint.
• Letting decking be “at cost”. Get the per-sheet price before work starts.
• Comparing on price per square instead of price per year. It is the only comparison where metal and asphalt are close.