Screw Down Panels

Screw down panels are a practical, cost-effective option for roofing and siding projects that need durability, straightforward installation, and a clean traditional look.

Reliable Metal Panels for a Wide Range of Projects

Screw down panels remain one of the most widely used metal panel options because they offer dependable performance, design flexibility, and strong value. These panels are commonly selected for barns, garages, sheds, homes, sidewalls, post-frame buildings, and other structures where long-term performance and straightforward installation matter.

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GRG Grand Rib 40 year Painted

GRG' s tough steel construction provides performance with value and is a durable solution for many applications including carports, barns and other building configurations. (40 year limited warranty).

Clean, traditional lines, visually appealing, superior durability, longevity, and resistance to environmental elements.

Minimum Roof Slope: 2½:12
Panel Coverage: 36" coverage with ¾" rib height
Hail Resistance: UL2218, Class 4
Fire Resistance: UL790, Class A
Maximum Panel Length: Custom cut to lengths up to 40'

Grand Rib 3

Grandrib 3 is the "benchmark of the industry" and can be used for walls and roofs. This unique and versatile panel is available in a variety of popular colors. The panels have clean traditional lines, and are manufactured from the best structural steel available. Residential/Agricultural (limited lifetime warranty)

Minimum Roof Slope: 2½:12
Panel Coverage: 36" coverage with ¾" rib height
Hail Resistance: UL2218, Class 4
Fire Resistance: UL790, Class A
Maximum Panel Length: Custom cut to lengths up to 40'

Grand Rib 3 Plus - G90 Painted

The Grandrib series is the benchmark in the industry, manufactured from the best structural steel available. With clean, traditional lines, the Grandrib series offers a visually appealing metal roofing and siding solution with superior durability, longevity, and resistance to environmental elements.

Minimum Roof Slope: 2½:12
Panel Coverage: 36" coverage with ¾" rib height
Hail Resistance: UL2218, Class 4
Fire Resistance: UL790, Class A
Maximum Panel Length: Custom cut to lengths up to 40'

Grand Rib 3 Liner Panel

Fabral Grand Rib 3 Liner panels are perfect for interior projects requiring additional insulation, strength, or acoustical control. Additionally, these panels are an economical light gauge panel solution for projects requiring partitions. (no warranty-bright white only)

Application: Interior liner and partition panel
Panel Coverage: 36"
Gauge: Light-gauge steel
Finish: Polyester paint, easy to clean
Maximum Panel Length: Custom cut to lengths up to 40'
Acoustical (perforated) version available

2 ½″ Corrugated

This panel is designed for agricultural, residential and light commercial buildings with a minimum pitch of 2½:12. Available as plain galvanized only.

Minimum Roof Slope: 2½:12
Panel Coverage: 24" coverage with ½" rib height
Hail Resistance: UL2218, Class 4
Fire Resistance: UL790, Class A
Maximum Panel Length: Custom cut to length

Mighti Rib

This traditional panel design is for commercial and industrial roof, wall or fascia. It provides durability for unique demands of structures.

Vertical and Horizontal Applications
Mitered Corners Available
Substrate Offering: 26 and 24 Gauge Steel
Heavier Gauges Available Upon Request
Maximum Panel Length: 45′
Minimum Panel Length: 6′
Panel Variations R-Panel and W-Panel Are Available

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Panel Loc Plus

Panel-Loc Plus™ gives residential, agricultural, and light commercial projects the protection of steel with an attractive appearance. It features an extra striation on top of the rib to give it superior durability and protection against leaking. Panel-Loc Plus™ is available in 3 categories:

Panel-Loc Plus 40 Year — Standard painted panel in 29-ga SMP steel with a 40-year paint warranty. A dependable, value choice for residential, agricultural, and light commercial.
Panel-Loc Plus Limited Lifetime — Premium CentralGuard painted finish with a limited lifetime paint warranty, plus added fade, rust, and dent resistance for maximum durability.
Panel-Loc Plus G100 — Bare galvanized panel with a heavier G100 zinc coating and protective acrylic finish. Rugged and economical where a galvanized look is preferred over paint.

R-Loc

Industry standard configuration allows maximum purlin spacing for a cost-effective building.
Ideal for low pitch commercial roofs.
Matching trims and accessories are available.

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CLASSIC RIB®

Liner, Roof, Wall
Panel Coverage: 36"
Rib Height: 3/4"

Rib Features: Bell top trapezoidal rib on 9" centers

Standard Gauges: 26 ga., 29 ga.

Classic Rib panel has been a staple for decades for pole barns, storage sheds, utility buildings and light commercial construction.

BI-RIB

Liner, Roof, Wall
Panel Coverage: 36"
Rib Height: 7/16"

Rib Features: Double trapezoidal rib on 9" centers.

Standard Gauge: 29 ga.

Bi-Rib agricultural panels provide the obvious choice for post-frame buildings including horse barns, riding arenas, machinery storage, sheds and most other agricultural buildings.

PRO-PANEL II®

Liner, Roof, Wall
Panel Coverage: 36"
Rib Height: 5/8"

Rib Features: Trapezoidal rib on 9" centers.
Standard Gauges: 26 ga., 29 ga.

This exposed fastened, low-profile panel applies over open framing or solid substrate for multiple applications.

PBR-Panel

Liner, Roof, Wall
Panel Coverage: 36"
Rib Height: 1¼"
Rib Features: Trapezoidal rib on 12" centers
Standard Gauges: 24 ga., 26 ga. (22 ga. optional)

A versatile, high-strength exposed fastener panel for open framing or solid substrate, with an added purlin-bearing leg for stronger support. Widely used for commercial, agricultural, industrial, and residential roofing and walls.

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MasterRib

This widely-used exposed fastener panel is ideal for nearly every building project your customers take on. Formerly known as Imperial Rib, this exposed fastener panel with optional Drip Stop technology is widely used in many industries.

Ameri-Drain

As a panel profile that endures with a traditional look, this exposed fastener panel is a popular roofing option in the agricultural industry.

2 ½ Corrugated Metal Panels

The 2 ½ Corrugated exposed fastener panel offers the same traditional appeal with a higher rib profile.

1 ¼ Corrugated Metal Panels

A versatile exposed fastener panel, the 1 ¼ Corrugated panel is commonly used in a range of agricultural applications.

5V Crimp

A long-lived exposed fastener panel, 5V Crimp is an ideal fit for agricultural applications.

PBR Panel

PBR is a versatile, low-profile roofing and wall panel that can be applied over open framing or solid substrate. It is popular for commercial and residential applications.

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Master Rib®

Roof & Wall Panel

MasterRib metal panels are a popular and versatile option for classic looks used in a wide range of roofing and sidewall applications for residential, commercial, and post-frame buildings. MasterRib metal panels feature extra-wide ribs to increase strength and ease handling for roof installation. Another unique feature of the MasterRib metal roofing panel is the extra-large siphoning channel on the under-lap rib which provides extra leak resistance in extreme wind & rain loads.

PBR Panel - Purlin Bearing Leg

Roof & Wall Panel

Union Corrugating's PBR metal panels are designed for industrial, commercial, and steel-frame building applications. The "R" family of metal panels has the strength to perform on roof pitches as low as 1:12 and on spans up to five feet. The IR metal roofing panels are also suitable for sidewall applications while the PBR metal roofing panel has an added purlin bearing leg to provide better support for roofing applications.

Roof Panel

For generations, 5V panels have been used on farm buildings and other rural metal roofing projects. Today, many homeowners have recognized this timeless design is ideal for residential metal roofs as well. Our 5V metal roofing panels are especially popular in Florida and other coastal areas. The 5V metal roof panels are designed with an enhanced “U” over “V” profile to provide maximum leak resistance.

2 ½ Corrugated

Roof & Wall Panel

Corrugated panels are the original metal roofing and siding panels and are a traditional staple in agricultural applications. Today, usage has expanded beyond its rural roofing heritage and they are being increasingly used to add traditional and rustic looks to homes, restaurants, retail establishments, and many other building types.

1 ¼ Corrugated

Roof & Wall Panel

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Modern-Rib

Modern Rib is a contemporary exposed fastened panel with a ¾" rib height, blending modern aesthetics with durability for residential and light commercial applications.

Max-Rib Panel

Max-Rib is an exposed fastened panel with a ¾" rib height, offering an economical and durable roofing and wall solution for residential, agricultural, and light commercial applications.

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