Epic Steel 7/8" Corrugated Panel - 24 Gauge Dark Bronze (Ultra Low Gloss)

The 7/8” Corrugated profile delivers what Montana contractors need most — 50,000 psi minimum yield strength in a panel that handles both roofing and siding duty. At 24 gauge thickness, this corrugated panel brings legitimate structural muscle to residential and light commercial projects where thinner gauges would flex and oil can.

The Ultra Low Gloss finish addresses the biggest aesthetic complaint about metal panels — that wavy, distorted look when sunlight hits at the wrong angle. PVDF Kynar 500 coating chemistry backs it up with a 35-year limited warranty. For Montana’s high-altitude sun conditions, that glare reduction matters as much as the warranty coverage.

Structural Performance That Counts

Grade D steel substrate with AZ-50 Galvalume protection gives this panel backbone. The numbers tell the story:

Specification	Value	Source
Yield Strength	50,000 psi (minimum)	Manufacturer
Panel Weight	4.0 lbs per linear foot	Manufacturer
Wind Uplift Rating	UL 580 Class 90	UL Tested
Hail Impact Rating	UL 2218 Class 4	UL Tested
Fire Rating	UL 790 Class A	UL Tested
Minimum Slope	3:12	Manufacturer

That Class 90 wind uplift rating suits Montana’s high-wind corridors along the Rocky Mountain Front. The 3:12 minimum slope matches typical ranch-style roof pitches throughout the state.

Integrated anti-siphon groove at laps provides measurable watertightness improvement where panels overlap. Combined with butyl sealant beads recommended for side laps, the system addresses moisture infiltration at the most vulnerable points.

Coverage and Installation Reality

Coverage width changes based on application — a detail that affects material calculations:

Application	Coverage Width	Panel Configuration
Roofing	34.67 inches	Double overlap
Siding	37.33 inches	Single overlap

Overall width: 40 inches with ribs spaced 2-5/8 inches center-to-center. Panels run from 42 inches minimum to 42 feet maximum length.

Fastener requirements depend on substrate:

• #10 Wood-grip for dimensional lumber
• #14 Wood-grip for plywood/OSB minimum 7/16”
• #12 Tek for structural steel up to 3/16”

Fastened at the top of the corrugation, every third ridge with stitch screws every 1’0” up the panel side-lap.

The panel conforms to ASTM A653 / A792 material standards, meeting commercial building requirements. Compatible with standard 7/8” Corrugated trim profiles means contractors can source ridge caps, eaves, and gables from multiple suppliers.

Frequently Asked Questions

What makes 24-gauge worth the extra cost over 26 or 29-gauge panels?

24 Gauge is thicker (0.024”) and more resistant to oil canning and structural deformation compared to thinner options. The 50,000 psi yield strength and 4.0 lbs per linear foot weight provide measurable spanning advantages.

Does the Ultra Low Gloss finish affect the warranty coverage?

The 35-year limited warranty for Kynar 500 / PVDF finishes applies to the Ultra Low Gloss option. Non-painted materials (like Core-Ten or Bonderized) are non-warrantable.

Can this panel handle Montana’s snow loads on a 3:12 pitch?

With proper structural support meeting local snow load requirements, the panel’s 7/8” profile provides higher load capacity and better spanning capabilities than shallower corrugations. Always verify specific snow loads at snowload.montana.edu.

What’s included with the panel order?

Panels ship bare. Accessories ordered separately include trim, color-matched fasteners with gasketed heads, butyl tape or tripolymer sealant, foam closure strips, and optional snow stops.

Why does the research mention both 3/8” and 7/8” profiles?

‘3/8”’ is not a standard profile depth for Epic Steel and likely refers to accessory dimensions (e.g. 3/8” butyl tape) or was a typo for ‘7/8”’ in the search query. All Epic Steel 24-gauge corrugated panels in this finish use the 7/8” profile.