Drive through older parts of Southlake, Colleyville and Keller and you’ll see stone-coated steel roofs that look like wood shake or tile. A lot of them were installed as Gerard, and some as Metro, Allmet or SteelRock. Those roofs last, but when one gets hail-dented, wind-damaged or needs a repair after a remodel, owners hit the same wall: can I still get panels that match?
I’m Blake Snow. I’ve been roofing for 30 years, and we have experience with Unified Steel and older Gerard roofs, including sourcing matching panels and trim. Here’s what the manufacturer’s own paperwork says, and how I handle it on a real roof.
Who makes these panels now
Gerard-style stone-coated steel is now sold as Unified Steel by Westlake Royal Roofing Solutions (Westlake Royal Building Products). The Unified Steel specification on ARCAT lists the manufacturing location as Oceanside, California, and describes the panel as ASTM A792 Grade 33 steel with an AZ50 aluminum-zinc coating, 0.017 inch thick, with colored stone granules in an acrylic base coat and a clear acrylic glaze. Coated steel weight is about 1.3 lb per square foot.
Which old panels were discontinued (straight from the bulletin)
Westlake Royal’s Unified Steel technical bulletin UNS550300, “Discontinuance of Panel Profiles” (issued March 2022, revised March 2026), says:
- Gerard Classic Tile and Gerard NB Tile were discontinued June 1, 2016.
- Allmet Talavera and Shadowline were discontinued August 30, 2015.
- Effective May 1, 2018, Gerard Canyon Shake, Gerard Guardian Shingle, Allmet panels (including Continental), Woodshake, Metro Roman Tile and Metro Shingle, and all SteelRock panels were discontinued.
The bulletin also warns that all former Metro, Allmet and SteelRock panels now use a different granule size, which changes the color compared with the Unified Steel offering.
What replaces each old profile
| Current Unified Steel panel | Panels per square | Install | Replaces (per the bulletin) |
|---|---|---|---|
| Pine-Crest Shake | 20 | Batten or direct-to-deck | Metro Shake II (dissimilar color), Gerard Canyon Shake (dissimilar size), Woodshake (dissimilar size), Pacific Shake (dissimilar colors) |
| Pacific Tile | 20 | Batten or direct-to-deck | Gerard Pacific Tile; Gerard Classic Tile and NB Tile (dissimilar size); Metro Tile and Allmet Tile II (dissimilar colors) |
| Barrel-Vault Tile | 24 | Batten or direct-to-deck | Gerard Barrel Vault; Metro Roman Tile (dissimilar size); Allmet Continental (dissimilar colors); Allmet Talavera (dissimilar size) |
| Granite-Ridge Shingle | 24 | Direct-to-deck | Gerard Granite Ridge; Allmet Granite Ridge (dissimilar color); Metro Shingle (dissimilar size); Gerard Guardian Shingle (dissimilar profile) |
| Cottage Shingle | 22 | Direct-to-deck | Metro Cottage Shingle (dissimilar colors) |
The bulletin is blunt about it: where a panel is listed as dissimilar in size or color, the new Unified Steel panels do not match existing roofs using that old profile. And panels that aren’t Cottage, Pine-Crest, Pacific, Barrel-Vault or Granite-Ridge won’t fit with the discontinued profile.
Repair or replace? How I decide on a Southlake roof
- Identify the panel first. Measure exposure and panel length, look at the profile, and find the original invoice if you have it. A Gerard Pacific Tile roof and a Gerard Classic Tile roof can look alike from the street but take different panels.
- If it’s a carry-over profile (Gerard Pacific Tile, Barrel Vault or Granite Ridge), a repair with current Unified Steel panels is often realistic. Color still needs a side-by-side check, because granules weather.
- If it’s Canyon Shake, Woodshake, Classic Tile or NB Tile, the bulletin says the current panels are a different size. Small repairs on a back slope may be fine with salvaged panels. A visible front slope usually means replacing the whole slope or the whole roof so it looks right.
- Don’t reuse battens on a re-panel. The bulletin says different-size panels need different batten spacing, and reusing battens isn’t allowed for coverage under the performance section of the Unified Steel Limited Warranty.
- Keep copper and lead off it. The Unified Steel spec says not to use lead or copper with its aluminum-zinc coated steel. That includes copper valleys or lead pipe jacks someone added later.
What you get with current Pine-Crest Shake
Westlake Royal’s Pine-Crest Shake page lists:
- Class 4 hail impact resistance, and meets the FM standard for Very Severe Hail (VSH)
- Class A fire rating
- Hurricane wind performance rated; Westlake Royal’s FAQ says its systems meet wind resistance standards up to 180 mph
- Transferable 50-year limited warranty
- Lightweight and 100% recyclable
The ARCAT spec lists Pine-Crest at 16-1/2 x 52 inches with a 14-1/2 x 50 inch installed exposure, 2-inch side laps and a 1-inch turned-down leading edge. Colors in the bulletin: Barclay, Charcoal, Gold River, Harborwood, Ironwood, Stirling Gray and Timberwood.
Stone-coated steel vs. standing seam in Southlake
Stone-coated steel keeps the shake or tile look many Southlake HOAs like, and it’s light. Standing seam is cleaner and more modern, with no granules to shed. We roll our own standing seam in 24 and 26 gauge, with typical metal lead times of 1 to 2 weeks. See standing seam vs. stone-coated steel on Southlake estates, our DECRA shake and tile post, and our stone-coated steel page.
Hail on a stone-coated steel roof
Stone-coated steel resists hail well, but big hail can still dent panels or knock granules loose. Get it inspected and photographed before repairs. Matching is often the deciding issue on an older Gerard roof, so the panel identification belongs in the inspection report. In Texas you generally have 1 year from the date of loss to file a claim, but check your policy.
What goes on our stone-coated steel quotes
- Panel identification (brand, profile, color) and photos of the existing roof
- Repair vs. slope vs. full replacement, with the matching risk spelled out
- Panel, ridge cap, rake and eave trim by name
- New battens or direct-to-deck install per the manufacturer’s instructions
- Underlayment and flashing metal compatible with aluminum-zinc steel
- Free digital photo report, and our workmanship warranty from 10 years up to lifetime, depending on the job
Talk to us about your Gerard or Unified Steel roof
We repair and replace stone-coated steel roofs in Southlake, Colleyville, Keller, Westlake and across DFW. We’re certified with GAF, CertainTeed, Owens Corning, Atlas, Johns Manville, Carlisle, Tropical Roofing Products, Mule-Hide and Enviroshake, and many other roof manufacturers. We’re BBB A+ rated, with 5.0 stars on Google at all three offices: Bridgeport, Decatur and Rhome. Request a free inspection or call (817) 733-9228.
