Gauge and paint: the spec sheet, translated.

One & Done Metal Roofing · Steel by Platinum Metals Michigan

When roofing quotes start flying, you'll see specs like "26-gauge" and "PVDF" thrown around like everyone knows what they mean. Most contractors are happy to leave it mysterious. We'd rather you understand exactly what you're buying — because when you do, the differences between quotes suddenly make sense.

01Gauge — how thick the steel is

Gauge measures the thickness of the steel, and here's the part that trips everyone up: the lower the number, the thicker the metal. 24-gauge is thicker than 26-gauge, which is thicker than 28-gauge. Thicker steel resists dents better, sits flatter on the roof, and shrugs off more abuse from weather and time.

02Paint — the part you'll look at for 40 years

The paint on a metal roof isn't decoration — it's an engineered coating system, and it's what the 40-year finish warranty actually covers. There are two families that matter:

• SMP (our Select Series) — a tough, scratch-resistant coating and the residential standard. Excellent durability for the money, which is why it's what most Michigan homes wear. Where SMP gives a little ground: over decades, bold and dark colors can fade slightly faster than the premium system.
• PVDF (our Deluxe Series) — the premium architectural coating (you may hear the trade name "Kynar"). Its superpower is color-holding: the best fade and chalk resistance made, which is why it's the spec on high-end architecture. If you're choosing a vivid red, a deep bronze, or a color you want to look brand-new in 2050, this is the one.

03Finishes — same color, different character

Within the Select line, many colors come in more than one surface finish, and the difference is bigger in person than you'd think:

• Smooth — the classic clean look with a slight sheen. The default.
• Frost — a fine texture that softens the sheen and hides fingerprints, scuffs, and installation handling. Reads slightly lighter and more weathered.
• Matte — flat, modern, no glare. The look on most of the black standing seam roofs you've been admiring lately.
• Wood-grain prints — Aspen, Driftwood, Smokehouse, and Weathered Wood: the look of wood printed on steel that never rots.

04So what goes on your roof?

Here's how it comes together on a One & Done quote, with no decoding required:

• Standing seam — 26-gauge steel in the Select (SMP) colors as standard, with 24-gauge Deluxe (PVDF) available as the premium upgrade.
• Exposed fastener — 28-gauge steel in the Select colors, with heavier-gauge trim at the edges and openings where strength matters most.

Every panel is rolled by Platinum Metals Michigan, and your quote spells out the gauge and paint system in writing — so you can compare it against anyone else's, apples to apples.

Next read: Metal vs. shingles →