Between about 10 and 20 dollars per square foot installed, depending on the metal and how the seam closes. Snap lock steel sits at the low end, mechanically seamed steel in the middle, and aluminum above both. Zinc and copper are a separate conversation entirely.
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Same roof, different specification, and the spread is entirely within standing seam.
| Specification | Per square foot installed |
|---|---|
| Snap lock, 26 gauge steel, SMP finish | $10 to $13 |
| Snap lock, 24 gauge steel, PVDF finish | $12 to $16 |
| Mechanically seamed, 24 gauge steel, PVDF | $14 to $18 |
| Aluminum, 0.032 inch, PVDF | $14 to $20 |
If two standing seam quotes are four dollars a foot apart, this table is usually where the difference lives. how the work is sequenced covers what sits outside the rate.
The same things it never includes, and they are worth listing because they are how an attractive rate becomes a surprising invoice.
what a metal roof costs installed covers the assembly itself.
Gauge, seam type, metal and coating, mostly. Four dollars a square foot of spread is normal once those differ.
On a house, usually. Better dent resistance and less visible oil canning for a modest share of the total.
Yes, typically a couple of dollars more, and it earns that near salt air where steel will eventually corrode.
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