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What stone-coated steel roofing does Modex install in Minneapolis?

Modern Exterior Systems (Modex) installs stone-coated steel roofing across Minneapolis. Decra, Boral Steel, and Westlake Royal are the three primary brands — shingle, shake, slate, and tile aesthetic in a steel substrate with stone granule coating. 50-year warranty. Class 4 impact-resistant. $30,000 to $60,000 typical install. Best fit for hail-prone Twin Cities homes that want metal longevity without the modern metal look.

Updated May 2026 · Reviewed by Joe Dvorak, Owner, Modern Exterior Systems

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Stone-coated steel roof installed by Modex on a Twin Cities home

Material

What is stone-coated steel roofing?

Stone-coated steel roofing is a steel substrate with a stone granule coating that mimics the appearance of asphalt shingle, cedar shake, or Spanish tile. The metal core delivers 40-50+ years of durability, while the stone coating provides traditional aesthetics and UV protection. Interlocking panels create strong wind ratings (120+ MPH typical) and clean snow shedding in Minnesota winters. It's the ideal choice for homeowners who want metal longevity without the modern metal look.

  • Durable steel substrate

  • Stone granule coating

  • Traditional roof appearance

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Stone-coated steel roof on a Twin Cities home

Brands

The three stone-coated steel brands Modex installs

Decra, Boral Steel, and Westlake Royal — three manufacturers, similar 50-year warranties, different profile catalogs. We help pick the right one for the home and the budget.

Decra

Decra stone-coated steel

Decra is the oldest stone-coated steel brand and the volume leader in North America. Product lines: Decra Shake (cedar mimic), Decra Tile (Spanish tile mimic), Decra Shingle (asphalt mimic), and Decra Stone (stone-look). 50-year limited warranty. The default choice when the homeowner wants the most installed-base history.

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Boral Steel

Boral Steel (now part of Westlake Royal) competes head-on with Decra. Similar profile catalog, 50-year warranty, Class 4 impact ratings, strong Twin Cities install history.

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Westlake Royal

Westlake Royal absorbed Boral and continues to ship stone-coated steel under both brand names. Alternate profile styling and pricing flexibility. 50-year warranty, Class 4 impact rated.

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Profiles

Shake, shingle, slate, or tile

Stone-coated steel is sold by profile, not just by brand. Pick the one that fits the home — shake for cedar replacements, shingle for asphalt aesthetics, slate or tile for premium and architectural homes.

Shake

Shake profile

Mimics cedar shake with dimensional texture and depth. Most common Twin Cities choice for traditional-look replacement of cedar roofs without the maintenance burden. Delivers authentic shake appearance with metal durability.

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Shingle

Mimics architectural asphalt shingles for homeowners who want metal longevity without the metal aesthetic.

Tile

Mimics Spanish or Mediterranean tile. Less common in Twin Cities due to architectural style mismatch with regional homes.

Slate

Mimics natural slate at steel weight and cost, delivering premium appearance with metal durability.

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Benefits

Why stone-coated steel in Minnesota?

Minnesota's freeze-thaw cycles and heavy snow loads demand roofing that won't degrade. Stone-coated steel delivers both durability and traditional aesthetics.

Lifespan

40-50+ year lifespan

Stone-coated steel lasts roughly twice as long as premium asphalt shingles. The steel substrate resists rust and freeze-thaw damage, while the stone granule coating protects against UV degradation. Minnesota homeowners benefit from a roof that won't need replacement for decades.

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Long-life metal roof on a Twin Cities home

Pricing

Stone-coated steel cost ranges

Switch between per-square-foot and full-house pricing. Both include material, labor, tear-off, underlayment, flashing, and permits.

Stone-coated steel

$7–$14 / sqft

Installed, Minneapolis metro

Includes

Material and labor

Full tear-off and decking inspection

Synthetic underlayment and ice-and-water shield

New flashing at every penetration

50-year manufacturer warranty registered in your name

Class 4 impact and 120+ MPH wind rated

Lifetime workmanship (current owner)

Best fit

When stone-coated steel makes sense

Stone-coated steel isn't for every Twin Cities home. It earns its $30K–$60K premium when the owner plans to stay, insurance hail premiums are creeping up, or the original roof is cedar shake the city no longer permits to be replaced in kind. Here's the short list of when we recommend it.

  • Owner expects to stay 15+ years and wants a once-and-done roof

  • Home was originally cedar shake and the homeowner wants the look without the maintenance

  • Insurance has flagged the property for hail exposure and Class 4 impact rating drops the premium

  • Resale plan factors in a 50-year roof as a documented selling point

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Close-up of a stone-coated steel tile-profile roof

Comparisons

Stone-coated steel vs the alternatives

How stone-coated steel stacks up against standing seam metal, synthetic slate, and premium asphalt — by cost, warranty, and aesthetic.

vs Standing seam metal

Standing seam runs $40K–$90K+ with a modern continuous- panel look and hidden fasteners. Stone-coated steel runs $30K–$60K with a shake, shingle, or tile look. Both carry 50-year warranties. The choice is aesthetic, not durability.

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vs Synthetic slate / shake

Stone-coated steel $30K–$60K versus synthetic slate or shake (DaVinci, CeDUR) at $35K–$90K+. Both carry 50-year warranties and Class 4 impact ratings. Steel handles freeze-thaw cycles better; synthetic polymer handles UV slightly better. Pick by aesthetic preference.

See synthetic slate

vs Premium asphalt shingles

Premium asphalt (CertainTeed Presidential Shake TL, Malarkey Vista) runs $20K–$45K with a 30-year service life. Stone-coated steel doubles the life at $30K–$60K — roughly the same total cost when you amortize over two roofs versus one.

See asphalt options

The questions Twin Cities homeowners ask about stone-coated steel

Brand comparisons, curb-appeal expectations, Minnesota winter performance, pitch requirements — the five we hear on most estimates.

Still have questions?

Call Modex at 952-206-6339 or request a free quote.

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Get a written stone-coated steel quote within 48 hours

Free inspection on your Twin Cities home. We'll measure the roof, walk you through Decra, Boral, and Westlake side by side, and email a line-item quote within 48 hours. No door-knocking, no same-day-close pressure.

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Finished stone-coated steel roof on a Twin Cities home

Reviewed by Joe Dvorak, Owner, Modern Exterior Systems · Updated May 2026

Modex is a women-owned roofing contractor in Eden Prairie, MN. We install Decra, Boral Steel, and Westlake Royal stone-coated steel across the Twin Cities metro — shake, shingle, slate, and tile profiles. CertainTeed ShingleMaster · Malarkey Emerald Pro · Atlas Pro+ Silver Select. BBB A+ · NRCA Member #1016569 · MN License #BC762305.