Standing Seam vs. Corrugated vs. Stone-Coated Steel: Metal Roofing Compared
The three main residential metal roofing systems in 2026 — how they differ in cost, longevity, appearance, and hail performance.
'Metal roof' means three very different products with very different price tags and use cases.
Standing seam
Vertical panels with raised, mechanically-seamed joints. No exposed fasteners. Kynor 500 or Hylar 5000 finish lasts 40+ years without fading.
Best for: modern homes, low-slope roofs (3/12+), long-panel rooflines. Cost: $14–$18/sq ft installed.
Corrugated / exposed-fastener panels (R-panel, 5V-crimp)
Overlapping panels screwed through the face with rubber-gasketed fasteners. Common on agricultural buildings, cabins, and budget residential.
Fasteners are the weak point — gaskets fail at 15–20 years and need replacement. Cost: $6–$10/sq ft installed.
Stone-coated steel
Steel panels stamped to look like shake, tile, or shingle, coated with acrylic-bonded stone chips. Class 4 impact rating standard.
Best for: hail country where you want metal durability with a traditional look. Cost: $11–$14/sq ft installed.
Steel gauge and finish matter more than 'brand'
Buy 24-gauge minimum for standing seam. 26-gauge is fine for corrugated. Finish should be PVDF (Kynor 500 / Hylar 5000) — not polyester, which fades in 8–10 years.
Frequently Asked Questions
- Do metal roofs attract lightning?
- No. Metal roofs are not more likely to be struck than any other roof, and if struck they safely dissipate the charge — most insurers actually favor them.
- Can I put metal over existing shingles?
- Yes for standing seam over a single layer of shingles with furring strips, but most manufacturers void warranty on direct-over installs. Tear-off is safer.
Choosing materials for your roof?
Compare brands and price your project before you sign anything.