Englert Ultra-Dek Metal 24 Gauge: Standing Seam Panel Specs & Wind Uplift Ratings
Published: 2026-06-16
Englert Ultra-Dek is a 2-inch mechanical-lock standing seam metal panel system that is the standard specification for architectural metal roofing in high-wind and coastal regions. The 24 gauge Galvalume substrate with AZ50 coating provides 25+ year corrosion protection. The 2-inch seam height with mechanical lock provides superior wind uplift resistance compared to 1.5-inch snap-lock systems — critical for coastal applications where wind-driven rain and uplift are design challenges. Ultra-Dek panels are field-roll-formed by Englert's mobile roll-forming units, allowing continuous panel lengths up to 120+ feet without end-laps — eliminating a common leak point. Available in 25 standard Kynar 500 colors with a 35-year finish warranty.
Installation Requirements
Ultra-Dek must be installed by Englert-certified contractors using Englert's UD-1 mechanical seamer. The seamer crimps the male and female legs together at 180° to create a weathertight mechanical lock. Installed cost: $9.00-14.00/sq ft for 24 gauge steel, $12.00-18.00/sq ft for aluminum, depending on complexity, underlayment, and shop fabrication requirements.
🛡️ Insurance & Compliance AdvisoryStanding seam metal roofing is the highest-performing roof type for severe weather insurance claims — UL 580 Class 90 wind uplift exceeds FM Class 1-150 for single-ply membranes. For wind claims: provide the UL 580 test report and the manufacturer's installation certification (Englert requires certified installers for warranty). Metal roofing is non-combustible (UL Class A without additional underlayment) — provide this to your insurer for fire risk premium reduction. Hail damage on metal roofs: cosmetic dents are generally NOT covered by standard homeowners insurance (cosmetic exclusions are common in hail-prone states). Functional damage (punctures, seam separation, water entry) IS covered. The distinction between cosmetic and functional damage is the most common dispute in metal roof hail claims.
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Equivalent Products & Cross-References
| Equivalent / Alternate Product | Action |
|---|---|
| Berridge Zee-Lock 24 gauge | |
| Mueller Snap-Lock 26 gauge | |
| MBCI SuperLok 24 gauge |
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Frequently Asked Questions
What is the difference between 24 gauge and 26 gauge standing seam metal roofing?
24 gauge steel is 20% thicker than 26 gauge (0.024 vs 0.019 inch nominal). 24 gauge provides better impact resistance, higher wind uplift ratings, and better resistance to oil-canning (visible waviness in flat areas of the panel). For high-wind regions (120+ mph design wind speed), 24 gauge is the standard specification. 26 gauge is acceptable for residential and light commercial in moderate wind zones.
Does Englert Ultra-Dek require special underlayment for coastal applications?
Yes. For coastal installations within 3,000 feet of salt water, Englert requires a high-temperature ice-and-water shield underlayment and aluminum panels (not Galvalume steel) to prevent corrosion. Stainless steel fasteners and clips are also required. The standard Galvalume warranty is void for coastal installations within 3,000 feet of salt water if steel panels are used.
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References & Industry Standards
- ASTM International. Standard Specifications for Single-Ply Roofing Membranes. astm.org
- FM Approvals. Factory Mutual Roofing Assembly Standards. fmapprovals.com
- UL LLC. Fire Classification of Roofing Materials. ul.com
- NRCA. The NRCA Roofing Manual. nrca.net