Large post frame shop with four overhead doors, tan metal siding, green metal trim and roof

G-rib (also known as Ag Panel) is an economical and practical all-purpose panel that’s ideal for most agricultural applications and works well for many residential and commercial needs.


G-rib siding and roofing from Kauffman Metals is manufactured from the highest quality, domestically-sourced, Grade 80 high tensile steel coils. Our 29-gauge ribbed panels are sturdy, weathertight, and easy to install.

Resistance to dents, plus minimal expansion and contraction properties make this panel an excellent investment, providing lasting protection and great durability that enhances all types of structural designs.


Each panel is coated with Galvalume, a patented aluminum-zinc alloy coating for extra protection. Panels are then bonderized and an OPTIMA Primer is applied.

The primer supplies flexibility and provides an excellent base for the final coat, CERAM-A-STAR, a ceramic pigmented silicone polyester, which supplies strength, hardness, and durability against the effects of sun, wind, rain, heat, and cold. It is extremely resistant to mildew. No blistering, peeling, or flaking!


Coverage: 36”
Rib height: ¾”
Gauge: 29
Grade: 80

Whether your project is simple or complex, Kauffman Metals wants to make it easy.

Step 1

Get a quote by email or by phone.

Step 2

Place your order.

Step 3

We'll quickly have your order ready for pickup or delivery.

Benefits of G-Rib

Greater Durability

With our lifetime transferrable warranty, building with our metal means long term savings.


Metal is light in relation to its surface area. This means that buildings require fewer materials—roof trusses can be spaced further apart and purlins can be used instead of sheathing. For re-roofing, metal can often be put on top of the existing roof, saving removal costs.

Resistant to fire and wind

Metal roofing resists fire extremely well and is designed to hold up in strong winds.

Energy efficiency

Metal roofing reflects heat, reducing cooling costs in the summer.

Easy installation

Metal’s large panels allow relatively quick installs by accomplished contractors or handy homeowners.

Many styles and colors

Metal comes in a wide variety of styles, patterns, and colors, making it easy to match with your home or building’s design.

G-Rib FAQs

Metal roofs and siding can last from 40-70 years, depending on the quality of materials and installation. They are known for their durability, resistance to environmental factors, and low-maintenance requirements compared to asphalt shingles.

Standing seam is different from panels like G-rib and R-rib because its panels have concealed fasteners, providing a sleek, modern appearance and improved weather resistance. The other kinds of panels have exposed fasteners and more traditional, wavy patterns. Standing seam costs more to install, but those costs result in higher performance and greater aesthetics.

It is possible to install metal panels over existing roofing and siding. However, you must consider factors like the current materials’ condition, proper ventilation, and local building codes. It’s a good idea to check with a contractor to evaluate the situation before proceeding.

Metal roofs and siding can be more energy-efficient than other materials because they are highly reflective. This reduces solar heat gain, leading to lower energy bills.

While some homeowners have the skills to install metal roofing and siding, it is usually better to hire a professional contractor since installation requires proper measuring, cutting, and fastening to ensure durability, weather resistance, and a quality appearance.

Find Kauffman Metals in beautiful Bedford County, PA!

We are conveniently located along Route 30 (Lincoln Highway) in Bedford, PA about 3 miles from exit 146 on 1-76 (PA Turnpike).

We service about a 100-mile radius from our headquarters in Bedford, PA. That means our drivers cover parts of Maryland, Virginia, and West Virginia, in addition to our home state of Pennsylvania.

Kauffman service area map