Stone coated steel roofing is a metal roof that costs $7 to $13 per square foot installed, lasts 40 to 70 years, and wears a bonded layer of crushed stone granules so it looks like a tile, shake, or shingle roof instead of bare metal. It pairs the weight advantage of steel (about 1.5 pounds per square foot) with the curb appeal of a premium roof, which is why it competes with concrete tile and standing seam at a similar price band. This guide breaks down real cost, lifespan, the pros and cons, and how the major brands (DECRA, Unified Steel, Gerard, Tilcor, and Metro Roof Products) actually compare.
What is stone coated steel roofing?
Stone coated steel roofing is a factory-made panel built on a 24 to 26 gauge steel base, coated with an aluminum-zinc alloy (Galvalume) for corrosion resistance, then finished with a layer of crushed stone granules locked in with an acrylic bond. The stone surface gives the profile of clay tile, wood shake, or an architectural shingle while keeping the strength and light weight of steel.
Each panel interlocks with the courses above and below it. That interlock, plus concealed or batten-mounted fastening, is what lets a stone coated roof shed water and hold in high wind without the exposed screw holes that a corrugated panel relies on. The granule layer also dampens rain noise and blocks the ultraviolet light that fades a plain painted finish.
How much does stone coated steel roofing cost?
Stone coated steel roofing costs $7 to $13 per square foot installed for a typical residential job, or about $700 to $1,300 per roofing square (100 square feet). Materials alone run $5 to $11 per square foot. Steep, cut-up, or hard-access roofs push installed pricing to $14 to $22 per square foot. A full 1,700 to 2,000 square foot roof usually lands between $12,000 and $26,000.
| Cost basis | Price range (2026) |
|---|---|
| Materials only | $5 to $11 per sq ft |
| Installed, typical roof | $7 to $13 per sq ft |
| Installed, steep or complex roof | $14 to $22 per sq ft |
| Per roofing square (100 sq ft), installed | $700 to $1,300 |
| Full roof (1,700 to 2,000 sq ft) | $12,000 to $26,000 |
The material sits above premium asphalt and roughly level with concrete tile and mid-range standing seam. Because labor is a large share of the total, get the deck condition and any tear-off written into the quote as separate line items so you can compare bids fairly.
Is the cost worth it per year?
On a cost-per-year basis, stone coated steel is competitive with premium asphalt. At roughly $1,000 per square installed over a 50 year service life, the roof runs about $20 per square per year. An architectural asphalt roof at $500 per square over 22 years runs about $23 per square per year, and it needs replacing twice inside the steel roof’s life. The steel roof also avoids two tear-offs and their disposal cost.
How long does stone coated steel roofing last?
Stone coated steel roofing lasts 40 to 70 years, with 50 years a common field average when it is installed and flashed correctly. That outlasts asphalt shingles (about 20 to 30 years) and rivals concrete tile. Manufacturer warranties usually run 40 to 50 years or a limited lifetime term, often transferable to the next owner, and typically cover granule adhesion and corrosion perforation.
Real service life tracks with install quality and climate more than with the brand name. The Roofing Brief’s roofing material lifespan report compares field-observed lifespans against marketing claims across materials, and metal systems tend to hold their rating better than asphalt does. Coastal salt air, standing debris, and skipped ridge ventilation are the factors that shorten it.
Pros and cons of stone coated steel roofing
The core trade-off is high upfront cost and a small installer pool against a very long, low-maintenance service life with strong storm ratings. Stone coated steel carries a Class A fire rating, a Class 4 impact rating (the top UL 2218 tier, resisting hail up to about 2 inches), and wind ratings to 120 mph or higher, while weighing a fraction of what tile does.
Pros:
- Light weight: about 1.5 pounds per square foot (roughly 150 pounds per square), so it can often go over structures that cannot carry concrete or clay tile.
- Storm resistance: Class 4 impact and 120 mph-plus wind ratings; the interlocking panels resist uplift and hail cracking.
- Fire safety: Class A rated, a real advantage in wildfire zones over wood shake, which it can imitate.
- Long life, low upkeep: 40 to 70 years with little more than debris removal; it will not curl, rot, or split.
- Quieter than bare metal: the granule layer muffles rain and hail, often to near the level of an asphalt roof.
Cons:
- High upfront cost: two to three times the price of asphalt shingles.
- Fewer trained installers: a bad install can void the warranty, so the crew matters as much as the product.
- Cosmetic denting: very large hail or falling limbs can dent panels even when function is intact.
- Granule shedding: some surface granule loss over decades, similar to asphalt but slower.
- Repairs and color matching: older profiles and discontinued colors can be hard to source.
Stone coated steel roofing brands compared
Five names dominate the North American market: DECRA, Unified Steel (formerly Boral Steel), Gerard, Tilcor, and Metro Roof Products. Notably, DECRA, Unified Steel, and Gerard now all sit under Westlake Royal Building Products after its acquisition of Boral’s roofing lines, so those three share manufacturing and warranty infrastructure. All five offer tile, shake, and shingle profiles with Class A fire and Class 4 impact ratings.
| Brand | Parent company | Signature profiles | Typical warranty | Ratings |
|---|---|---|---|---|
| DECRA | Westlake Royal Building Products | Tile, Shake, Shingle XD, Villa, Espana | Limited lifetime | Class A fire, Class 4 impact, 120 mph wind |
| Unified Steel | Westlake Royal (formerly Boral Steel) | Pine-Crest Shake, Cottage Shingle, Barrel-Vault | 50-year limited, transferable | Class A fire, Class 4 impact |
| Gerard | Westlake Royal | Canyon Shake, Corona Tile, Diamant | 50-year limited | Class A fire, 120 mph wind |
| Tilcor | Ross Roof Group | Shake, Shingle, CF Shingle, Antica | 50-year limited | Class A fire, Class 4 impact |
| Metro Roof Products | Metro Roof Products | Metro Shake, Tile, Shingle, Roman Tile | Limited lifetime | Class A fire, Class 4 impact, 120 mph wind |
Warranty terms vary by product line, color, and whether the roof is installed by a certified contractor, so read the fine print for your exact profile. For a full brand-level breakdown of cost, profiles, and trade-offs on the market leader, see our DECRA stone-coated metal roofing guide.
How is stone coated steel roofing installed?
Stone coated steel panels install one of two ways: batten-mounted (raised) or direct-to-deck (flush). The batten system lifts the panels onto horizontal wood or metal strips, adding an air gap that improves ventilation and helps with a tile look, while direct-to-deck fastening lays panels flat on the underlayment for a lower profile. Both use interlocking courses fastened from the eave upward.
- Inspect and repair the deck, then install underlayment (synthetic or, in hot climates, a high-temperature membrane).
- Set eave, fascia, and gable trim, then the starter course.
- For a batten system, fasten horizontal battens (and counter-battens for a ventilated assembly) at the panel module spacing; skip this for direct-to-deck.
- Install panels from the eave up, interlocking each course and fastening into battens or deck with corrosion-resistant screws or nails.
- Flash hips, ridges, valleys, and wall intersections, then cap with matching ridge and hip accessories.
Stone coated steel vs asphalt, tile, and standing seam
Against the alternatives, stone coated steel’s edge is weight and storm rating at a mid-premium price. It weighs roughly one-sixth of concrete tile, which lets it retrofit homes that cannot carry a tile load. It costs less than clay tile and true standing seam while delivering a comparable lifespan and a textured, non-industrial look.
| System | Installed cost per sq ft | Lifespan | Weight per sq ft | Fire |
|---|---|---|---|---|
| Stone coated steel | $7 to $13 | 40 to 70 years | ~1.5 lb | Class A |
| Architectural asphalt | $4.50 to $8 | 20 to 30 years | ~2.5 to 4 lb | Class A |
| Standing seam metal | $10 to $18 | 40 to 70 years | ~1 to 1.5 lb | Class A |
| Concrete tile | $10 to $20 | 50+ years | ~9 to 11 lb | Class A |
| Clay tile | $12 to $25 | 75 to 100 years | ~9 to 12 lb | Class A |
If you want the panel-and-profile background before choosing, our guide to metal roofing types maps how stone coated steel fits next to standing seam, corrugated, and metal shingles, and metal roofs that look like shingles covers the shingle-profile options in more depth.
Is stone coated steel roofing worth it?
Stone coated steel roofing is worth it for owners who plan to stay long enough to bank the 40 to 70 year lifespan, live in a hail, wind, or wildfire zone, or want a tile or shake look on a frame that cannot carry tile weight. It is a weak fit for a short-term hold or the tightest budget, where architectural asphalt returns more value per dollar. For a broader material fit check, see our best metal roof for a residential home guide.
Frequently asked questions
How long does stone coated steel roofing last?
Stone coated steel roofing lasts 40 to 70 years, with 50 years a common field average when installed and flashed correctly. Manufacturer warranties usually run 40 to 50 years or a limited lifetime term and are often transferable. Coastal salt air, trapped debris, and poor ventilation are the main factors that shorten real service life.
How much does a stone coated steel roof cost?
It costs $7 to $13 per square foot installed for a typical roof, or $700 to $1,300 per roofing square. Materials alone run $5 to $11 per square foot, and steep or complex roofs reach $14 to $22 installed. A full 1,700 to 2,000 square foot roof usually costs between $12,000 and $26,000.
Is stone coated steel roofing noisy?
No, it is quieter than bare metal roofing. The bonded stone granule layer absorbs impact sound, so rain and hail on a stone coated roof are typically no louder than on an asphalt shingle roof, and noticeably quieter than on uncoated standing seam of the same gauge over the same deck and underlayment.
Does stone coated steel roofing dent from hail?
It resists hail better than most metal roofs. Panels carry a Class 4 impact rating (the top UL 2218 tier) and shrug off hail up to about 2 inches without cracking. Very large hail or falling limbs can leave cosmetic dents, but the roof usually keeps functioning and the granule surface hides minor marks.
Can you walk on a stone coated steel roof?
Yes, with care. Step on the lower, overlapping portion of each panel where it is supported, and walk along the connecting ridges rather than the open pans. Distribute your weight and avoid stepping on unsupported spans to prevent bending or cracking a panel. Soft-soled shoes and dry conditions reduce the risk.
Is stone coated steel roofing worth the cost?
In many cases, yes, if you keep the home long term or live in a storm-prone or wildfire area. Its 40 to 70 year life and low upkeep make cost-per-year competitive with premium asphalt while avoiding one or two future tear-offs. For a short-term hold or the tightest budget, architectural asphalt often returns more value.
Reviewed by The Roofing Brief Team. Last reviewed July 2026.