Multi-Rib Exposed Fastened Metal Roof & Wall Panel

High-Strength, Economical Exposed Fastener Metal Panel

Multi-Rib is McElroy Metal’s proprietary exposed fastener panel that combines durability, economy, and consistent performance for roof and wall applications. Its 1 3/16" rib height and 12" rib spacing provide a balanced profile—offering greater spanning strength than standard panels without the extra weight or cost of deeper ribs.

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Renderings & Profiles

Color Charts

Great for:

WALLS

ROOFS

RESIDENTIAL

COMMERCIAL

Multi-Rib 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 Metal Roof & Wall Panel

1 3/16"

12”

36"

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 with sealant; 3:12 without sealant

Multi-Rib Ideal Applications

Commercial, agricultural, and residential buildings that require dependable roof and wall protection.
Roof and wall assemblies that demand moderate spans and consistent appearance.
Retrofit and new construction projects emphasizing cost efficiency and versatility.
Post-frame and utility structures needing strength with an economical profile.

See 3D Textures Here

Multi-Rib Top 3 Benefits

Balanced Strength and Economy: 1 3/16" rib height offers dependable structural strength while maintaining a cost-effective profile for a wide range of projects.
Fast, Straightforward Installation: Panels attach directly through the flats using exposed fasteners, ensuring quick, reliable installation with minimal labor.
Durable Coating Options: 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
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-Rib/R-Panel Base Detail Multi-Rib/R-Panel Die-Formed Ridge Cap Detail Multi-Rib/R-Panel Eave Detail Multi-Rib/R-Panel Eave w/ Gutter Detail Multi-Rib/R-Panel Head Detail Multi-Rib/R-Panel High Eave Detail Multi-Rib/R-Panel Hi-Side Tie-In Detail Multi-Rib/R-Panel Jamb Detail Multi-Rib/R-Panel Roof Panel Lap Detail Multi-Rib/R-Panel Outside Corner Detail Multi-Rib/R-Panel Panel To Purlin Detail Multi-Rib/R-Panel Rake Detail Multi-Rib/R-Panel Rake Tie-In Detail Multi-Rib/R-Panel Ridge Detail Multi-Rib/R-Panel Simple Base Detail Multi-Rib/R-Panel Simple Base with Concrete Notch Detail Multi-Rib/P-Panel Wainscoat Detail Multi-Rib/R-Panel Panel To Girt Detail

PDF Drawings

Spanish Installation Manuals

Multi-Rib/R-Panel Installation Manual

English Installation Manuals

Multi-Rib/R-Panel Installation Manual Thru-Fastened Panel

Brochures/Flyers

Camouflage Coating Flyer MoistureLok Flyer 2025 Product Catalog

Metal Panel Care & Maintenance

Operation and Maintenance Manual (Roofs) Operation and Maintenance Manual (Walls)

Product Data Sheets

Multi-Rib 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 - Almond Paint - Ash Gray Paint - Bone White Paint - Brandywine Paint - Brite Red Paint - Buckskin Paint - Champagne Metallic Paint - Charcoal Paint - Colonial Red Paint - Copper Penny Paint - Dark Bronze Paint - Evergreen Paint - Hartford Green Paint - Home Depot Orange Paint - IHOP Blue Paint - Leadcoat Paint - Light Stone Paint - Mansard Brown Paint - Matte Black Paint - Medium Bronze Paint - Patina Green Paint - Patrician Bronze Paint - Preweathered Galvalume^® Paint - Regal Blue Paint - Regal White Paint - Roman Blue Paint - Sandstone Paint - Silver Metallic Paint - Slate Gray Paint - Texas Silver Metallic Paint - White Backer Paint Pens - Kynar^® Paint Pens- Kynar^® ADS Data

Specifications

Multi-Rib

UL 580 Construction Numbers

Multi-Rib #166 (open framing) UL580 Class 90 - Multi-Rib No 648 UL580 Class 90 - Multi-Rib No 166

Approvals

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

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
Compare Exposed Fastened 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-Rib Exposed Fastened Metal Roof & Wall Panel

Exposed Fastened Wall & Roof

1 3/16"

36"

1:12 with sealant; 3:12 without sealant

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; UL580 Class 90; ASTM E1592 (26 GA PBR Only); ASTM E1680/E1646; UL 2218 Class 4; Florida Product Approval; TDI (over Plywood or OSB Deck); IAPMO UES Listing

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

Exposed Fastened Wall & Roof

1 3/16"

36"

1:12 with sealant; 3:12 without sealant

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; UL580 Class 90; ASTM E1592 (26 GA PBR Only); ASTM E1680/E1646; UL 2218 Class 4; Florida Product Approval; TDI (over Plywood or OSB Deck); IAPMO UES Listing

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

Factory Applied Anti-Condensation Membrane

Multi-Rib roof panels with McElroy's MoistureLok, offer a great option to address condensation challenges. The design of our MoistureLok product traps moisture and then releases it back into the air as natural humidity once conditions go back below the dew point.

Notes & Manufacturing Locations

Manufactured in: Bossier City, LA; Clinton, IL; Winchester, VA; Adelanto, CA; Merkel, TX
Available with MoistureLok anti-condensation membrane
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-Rib different from Max-Rib or Mega-Rib?

Multi-Rib offers greater spanning strength than Max-Rib while maintaining a shallower, more economical profile than Mega-Rib, making it a perfect mid-range solution.

Can Multi-Rib be used for wall applications?

Yes. Multi-Rib provides consistent strength and appearance across both roof and wall assemblies.

What finishes are available?

Multi-Rib 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 required for roof applications?

A minimum slope of 3:12 is recommended for proper drainage and performance.

Multi-Rib Exposed Fastened Metal Roof & Wall Panel

Renderings & Profiles

Great for:

WALLS

ROOFS

RESIDENTIAL

COMMERCIAL

Multi-Rib Ideal Applications

Multi-Rib Top 3 Benefits

Color Charts

CAD Drawings

PDF Drawings

Spanish Installation Manuals

English Installation Manuals

Brochures/Flyers

Metal Panel Care & Maintenance

Product Data Sheets

Product & Trim Information Books

SDS - Substrate & Paint

Specifications

UL 580 Construction Numbers

Approvals

Finish and Substrate Warranties

Compare our Metal Panels Using the Tool Below

Factory Applied Anti-Condensation Membrane

Notes & Manufacturing Locations

Why Choose McElroy Metal

Find a Distributor / Contractor Near You

Frequently Asked Questions

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