Fabral’s Ultra Loc combines concealed fastener convenience with standing seam performance in a 26-gauge panel that challenges conventional wisdom about gauge requirements. The system delivers UL 790 Class A fire resistance and UL 2218 Class 4 impact resistance — matching or exceeding many heavier-gauge competitors.
At 16 inches of coverage per panel with a 1-inch standing seam height, Ultra Loc works on slopes as low as 3:12. The concealed fastening system eliminates exposed screws while the Galvalume AZ50 coating backs a 20-year perforation warranty.
Class 4 hail resistance puts Ultra Loc in the same category as premium architectural products. That rating means it survived a 2-inch steel ball dropped from 20 feet — the insurance industry’s gold standard for impact resistance. Montana contractors know what summer hail can do to lesser panels.
The 26-gauge high-strength steel with stiffening ribs provides the structural integrity needed for snow loads. Fabral doesn’t publish specific load ratings for this panel, but the reinforcing ribs add strength and rigidity beyond standard 26-gauge profiles.
Energy Star approval on standard colors brings another advantage — potential utility rebates and proven solar reflectance. The Enduracote™ or WeatherXL SMP paint systems provide the fade resistance that matters when you’re selling 30-year chalk and fade warranties.
| Specification | Value | Source |
|---|
| Fire Rating | UL 790 Class A | Tested |
| Impact Rating | UL 2218 Class 4 | Tested |
| Coverage Width | 16 inches | Manufacturer |
| Seam Height | 1 inch | Manufacturer |
| Minimum Slope | 3:12 | Manufacturer |
| Maximum Length | 40 feet | Manufacturer |
| Gauge | 26 GA High Strength | Manufacturer |
| Coating | Galvalume AZ50 | Manufacturer |
Installation Reality Check
The concealed fastener system uses clips at 16 inches on center with gable cleats at the same spacing. Each clip takes two fasteners, and the system requires solid decking — no skipping the OSB or plywood substrate.
Panels can install directly over existing roofing, saving tear-off labor when the deck is sound. The lightweight design makes handling easier than traditional standing seam panels, though “lightweight” is relative when you’re hauling 40-foot sheets.
Required accessories include concealed clips, ridge caps, gable and rake trim, eave trim, drip edge, sealants, and closure strips — all sold separately. Budget accordingly. This isn’t a complete system in a box.
Customer feedback notes the system installs easier than traditional standing seam while maintaining the concealed fastener aesthetic. Users praise the high strength-to-weight ratio — meaningful when your crew is working on steep pitches or complex rooflines.
The Competition Context
Fabral positions Ultra Loc against their own Horizon 16 (virtually identical specs for different regions), traditional 1-1/2 inch standing seam systems (typically 24-gauge with higher seams), and exposed fastener panels.
Against exposed fastener options, Ultra Loc provides superior aesthetics and leak protection — no contest there. Compared to 1-1/2 inch standing seam panels, you’re trading a half-inch of seam height and potentially thinner gauge for easier installation and lower material cost.
FAQ
What makes Ultra Loc different from traditional standing seam?
Ultra Loc uses a concealed clip system rather than field-seaming, making installation faster while maintaining hidden fasteners. The 1-inch seam height is lower than many standing seam profiles, and it uses 26-gauge steel where others might spec 24-gauge.
Can it handle Montana snow loads?
The panel incorporates stiffening ribs for enhanced strength and rigidity, and the 26-gauge is designated as “high strength” steel. Specific snow load ratings aren’t provided in the specifications, so verify with Fabral for your project’s requirements.
What’s the real installation requirement?
Solid decking is mandatory — no open purlins. You’ll need the complete trim package including concealed clips, ridge caps, rake and gable trim, plus sealants and closure strips. Figure clips at 16 inches on center with two fasteners per clip.
How does the warranty stack up?
Limited lifetime warranty on film integrity, 30 years on chalk and fade, and 20 years against perforation thanks to the Galvalume coating. Standard for the industry but solid protection for Montana’s freeze-thaw cycles.
