Multi-Cor McFarland Charcoal Mega GM Multi Cor (1)

Multi-Cor Exposed Fastened Metal Roof & Wall Panel

Corrugated Metal Panel for Roof and Wall Applications

McElroy Metal’s Multi-Cor is a classic corrugated exposed fastener panel that delivers timeless style, durability, and flexibility for roof and wall systems. It’s an ideal choice for projects that call for the rugged charm of corrugated metal paired with long-term weather resistance and color stability.

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Renderings & Profiles

Color Charts

Great for:

WALLS

ROOFS

RESIDENTIAL

COMMERCIAL

Multi-Cor Exposed Fastened Metal Roof & Wall Panel Specs at a Glance

Panel Type

Rib Height

Major Rib On Center

Cover Width

Factory Panel Length

Onsite Forming Available

Substrate/Gauges

Installation

Finishes

Minimum Slope

Exposed Fastener Corrugated Metal Roof & Wall Panel

7/8”

2.67”

32"

Up to 50' (varies by manufacturing facility)

26 GA Galvalume®

Solid Deck or Open Framing

Kynar 500® (PVDF) & Silicone Modified Polyester (SMP); Galvalume® Plus (acrylic-coated)

1:12 Sealant required on all slopes

Multi-Cor Ideal Applications

Low- to steep-slope roofing for commercial, industrial, and institutional facilities without hips and valleys.
Pre-engineered applications that require a cost-effective approach while delivering strong performance.
Retrofit and new-construction projects seeking structural integrity and design flexibility.
Institutional or civic buildings where long-term aesthetics and performance are equally important.

See 3D Textures Here

Multi-Cor Top 3 Benefits

Classic Corrugated Design, Lower Profile: 7/8" ribs provide the traditional corrugated look with a softer, more refined texture suitable for smaller structures and interior spaces.
Lightweight and Easy to Install: Panels attach with exposed fasteners for quick installation and simple maintenance.
Durable Finishes and Long-Term Protection: Available in Galvalume®, Kynar 500® (PVDF) finishes for superior fade, chalk, and corrosion resistance and Silicone Modified Polyester (SMP) finishes for budget-conscious projects with lower performance expectations.

Choose a Document Type

Color Charts
Drawing Files
Installation
Literature
Maintenance
Product Info
SDS - Substrate & Paint
Specifications
Submittals
Technical Bulletins
Warranties

Color Charts

Multi-Rib, R-Panel, U-Panel, Multi-Cor, M-Cor, Mini-Rib and Multi-V Color Chart Standard Color Chart

CAD Drawings

Multi-Cor/M-Cor Base Detail Multi-Cor/M-Cor Eave Detail Multi-Cor/M-Cor Eave with Gutter Detail Multi-Cor/M-Cor End Lap Detail Multi-Cor/M-Cor Head Detail Multi-Cor/M-Cor High Eave Detail Multi-Cor/M-Cor Hi-Side Tie-In Detail Multi-Cor/M-Cor Jamb Detail Multi-Cor/M-Cor Outside Corner Detail Multi-Cor/M-Cor Panel To Purlin Detail Multi-Cor/M-Cor Rake Detail Multi-Cor/M-Cor Rake Tie-In Detail Multi-Cor/M-Cor Ridge Detail Multi-Cor/M-Cor Simple Base Detail Multi-Cor/M-Cor Wainscoat Detail Multi-Cor/M-Cor Wall Panel to Girt Detail

PDF Drawings

English Installation Manuals

Multi-Cor/M-Cor Installation Manual Thru-Fastened Panel

Brochures/Flyers

2025 Product Catalog

Metal Panel Care & Maintenance

Operation and Maintenance Manual (Roofs)

Product Data Sheets

Multi-Cor Product Data SikaLastomer^® 511 Product Data

Product & Trim Information Books

Multi-Rib/Multi-V/R-Panel/Multi-Cor/M-Cor/U-Panel/Mini-Rib PI Book

SDS - Substrate & Paint

Galvalume^® Substrate Paint - Ash Gray Paint - Autumn Red Paint - Brandywine Paint - Charcoal Paint - Clay Paint - Evergreen Paint - Hartford Green Paint - Ivory Paint - Light Stone Paint - Matte Black Paint - Patrician Bronze Paint - Regal White Paint - Roman Blue Paint - Surrey Beige Paint - Terratone Paint - Tudor Brown Paint - White Backer Paint Pens - Kynar^® Paint Pens- Kynar^® ADS Data

Specifications

Multi-Cor

Multi - Cor

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UL 580 Construction Numbers

UL 580 Class 90 - Multi-Cor No 649

Approvals

Fire Resistance (UL263) Ratings Fire Resistance (UL790) Ratings Florida Product Approvals Non-Structural Impact Resistance (UL 2218) Class 4 Texas Department of Insurance Windstorm Approvals

Miscellaneous Information

Multi-Cor 26 Ga. Wind Fastening Table

Finish and Substrate Warranties

Standard Galvalume^® Standard Silicone Modified Polyester (SMP) & Crinkle Finish with Galvalume^® Substrate Standard Fluropon^® Kynar 500^® PVDF with Galvalume^® Substrate Project Specific Galvalume^® Project Specific Fluropon^® Kynar 500^® PVDF with Galvalume^® Substrate Project Specific Silicone Modified Polyester (SMP) & Crinkle Finish with Galvalume^® Substrate

Compare our Metal Panels Using the Tool Below

Compare Exposed Fastened Roof Panels
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For information on all McElroy Metal products, visit our full product library .

Panel

Seam Type

Rib Height

Panel Widths

Minimum Slope

Install Substrate

Clips

Substrate / Gauges

Coating

Notable Approvals / Tests

Multi-Cor Exposed Fastened Metal Roof & Wall Panel

Exposed Fastened Wall & Roof

7/8”

32"

1:12 Sealant required on all slopes

Solid Deck or Open Framing

N/A

26 GA Galvalume®

Kynar 500® (PVDF) & Silicone Modified Polyester (SMP); Galvalume® Plus (acrylic-coated)

UL 263 Class A; UL 580 Class 90; UL 2218 Class 4; TDI (over Plywood Deck); Florida Product Approval

Choose a panel to compare to Multi-Cor Exposed Fastened Metal Roof & Wall Panel

For information on all McElroy Metal products, visit our full product library .

Panel

Seam Type

Rib Height

Panel Widths

Minimum Slope

Install Substrate

Clips

Substrate / Gauges

Coating

Notable Approvals / Tests

Multi-Cor Exposed Fastened Metal Roof & Wall Panel

Exposed Fastened Wall & Roof

7/8”

32"

1:12 Sealant required on all slopes

Solid Deck or Open Framing

N/A

26 GA Galvalume®

Kynar 500® (PVDF) & Silicone Modified Polyester (SMP); Galvalume® Plus (acrylic-coated)

UL 263 Class A; UL 580 Class 90; UL 2218 Class 4; TDI (over Plywood Deck); Florida Product Approval

Choose a panel to compare to Multi-Cor Exposed Fastened Metal Roof & Wall Panel

Details and Components Gallery

Multi-Cor

Multi-Cor Wall Lap Narrow Coil

Multi-Cor

Multi-Cor Wall Lap Narrow Coil

Notes & Manufacturing Locations

Manufactured in: Bossier City, LA
Additional Material Options: (Note: Minimum quantity and additional lead-time may apply)
- 22 GA Galvalume®
- 24 GA Galvalume®
Oil canning is a natural occurrence in metal panels and not a cause for rejection.

Why Choose McElroy Metal

McElroy Metal is an employee-owned manufacturer with more than six decades of experience producing high-quality metal roofing, wall systems, and substructural components. Our nationwide manufacturing and service center network ensures consistent availability, responsive support, and dependable delivery. Built on a culture of craftsmanship and partnership, our products are engineered for long-term durability and trusted performance on projects of every size.

Find a Distributor / Contractor Near You

Whether you’re building a new home or planning renovations, a metal roof can deliver long-term cost savings and comfort. To explore your options and find the product that meets your aesthetic and budgetary needs, contact a McElroy Metal distributor or contractor in your area today. We can’t wait to help make your dream home a reality.

Frequently Asked Questions

The questions below address common considerations and help guide product selection for your project.

What makes Multi-Cor different from other exposed fastener panels?

Multi-Cor features a deep, classic corrugated profile that provides timeless style and strong visual definition for roofs and walls.

Can Multi-Cor be used indoors?

Yes. Multi-Cor is a popular choice for interior walls, ceilings, and accent applications, providing an authentic industrial look.

What finishes are available?

Multi-Cor is available in Kynar 500® (PVDF) for superior color and weather resistance and Silicone Modified Polyester (SMP) for budget-conscious projects. For non-painted applications, we offer Galvalume® Plus (acrylic-coated).

What slope is recommended for roof installations?

A minimum slope of 3:12 is recommended for effective drainage and long-term performance.

Multi-Cor Exposed Fastened Metal Roof & Wall Panel

Renderings & Profiles

Great for:

WALLS

ROOFS

RESIDENTIAL

COMMERCIAL

Multi-Cor Ideal Applications

Multi-Cor Top 3 Benefits

Color Charts

CAD Drawings

PDF Drawings

English Installation Manuals

Brochures/Flyers

Metal Panel Care & Maintenance

Product Data Sheets

Product & Trim Information Books

SDS - Substrate & Paint

Specifications

Multi - Cor

Customize your submittal package Multi - Cor

General Product and Warranty Information

Panel Load Tables w/Section Properties and Testing

Safety Data and Material Safety Data Sheets

UL 580 Construction Numbers

Approvals

Miscellaneous Information

Finish and Substrate Warranties

Compare our Metal Panels Using the Tool Below

Details and Components Gallery

Multi-Cor

Multi-Cor Wall Lap Narrow Coil

Multi-Cor

Multi-Cor Wall Lap Narrow Coil

Notes & Manufacturing Locations

Why Choose McElroy Metal

Find a Distributor / Contractor Near You

Frequently Asked Questions

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Mega Rib

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Multi-Rib

Mega Rib

5V

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