
Medallion I and II
- Manufacturer
- McElroy Metal
- Product
- Medallion I and II
- Status
- Current
- Market
- United States
- Last verified
- September 20, 2026
Overview
Medallion I and Medallion II are snap-together architectural standing seam panels from McElroy Metal. Both use concealed fasteners and hidden clips, and a separate batten cap is installed over adjoining panels to close each seam. McElroy lists them for commercial and residential projects over solid deck.
Four pan profiles are shown: flat pan, single pencil rib, double pencil ribs and striated. The seam is a snap lock with hidden clips, and the panels are listed for roofs over solid decking.
Differences between the two panels
- Medallion I: 1-inch rib height, narrower batten cap, can be curved to a minimum radius of 30 inches.
- Medallion II: 1 1/2-inch rib height, wider batten cap, not listed for curving.
Batten cap widths are not given as dimensions. The data sheet draws a separate clip and batten cap for each panel, and a separate zee closure for each.
Medallion I is the only one of the two in the McElroy curved standing seam list, alongside 138T and 238T and Maxima.
Data sheets and technical documents
Current product files and retained historical revisions.
Current files
Archived files
No older reviewed revisions are archived for this product yet.
Profile and dimensions
- Cover widths: 12, 16 or 18 inches
- Major rib on center: 12, 16 or 18 inches
- Minimum slope: 3:12
- Factory panel length: up to 75 feet, depending on the manufacturing facility
- Onsite forming: not offered
- Substrate: solid deck
Pan configurations are flat pan (standard), ribbed (optional) and striated (optional). The sheet draws one flat pan, two ribbed and one striated profile.
Materials and components
The standard panel is 24-gauge Galvalume. Finishes are Kynar 500 PVDF and Galvalume Plus, an acrylic-coated finish. Component materials are:
- Medallion I clip: 26 gauge, ASTM A792 (50 ksi)
- Medallion I batten cap: 24 gauge, ASTM A792 (50 ksi)
- Medallion II clip: 26 gauge, ASTM A792 (50 ksi)
- Medallion II batten cap: 24 gauge, ASTM A792 (50 ksi)
- Medallion I zee closure: 26 gauge, ASTM A792 (50 ksi)
- Medallion II zee closure: 26 gauge, ASTM A792 (50 ksi)
- Coatings: Kynar 500 PVDF and Galvalume Plus (acrylic-coated)
- Substrate: 24 gauge Galvalume
Tests and approvals
Listed tests and approvals are UL 263 Class A, UL 580 Class 90, UL 2218 Class 4, ASTM E1592 and Florida Product Approval.
Medallion I and II are batten-seam panels, unlike snap-lock Medallion-Lok. They are listed in the McElroy range of architectural standing seam roof panels.
Installing this in San Antonio or Austin?
We install R-panel roofs and wall cladding on commercial and industrial buildings from our Bulverde office.