Great Northern Metals Co.
Our Resources
Helpful Guides and How-Tos on all things roofing

Here’s the Difference Between Galvalume vs Galvanized Steel (and Why You Should Care)
Yes, they’re both types of metal panels that start with a “g”, have coatings that are applied to steel core products, and sort of sound similar. But galvalume and galvanized are very different types of products…and picking the wrong one could cause your roofing...
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The Ultimate Guide to Corrugated Metal Roofing & Siding
Corrugated Metal Roofing Durable, versatile, and visually pleasing—corrugated metal roofing and siding panels have it all and more! Corrugated panels are well-known for their...
The Ultimate Guide to Board & Batten Metal Siding
Board & Batten Metal Siding If you want to blend the classic look of wood panels with the sleek durability of metal, board & batten metal siding is for you. Board &...
A Metal Expert’s Guide to Steel Siding
Steel siding has emerged as a major contender in the design world as architects and homeowners explore siding options outside of wood and vinyl siding. Not only can steel siding...
The Ins and Outs of a Metal Roof Warranty
Metal roofs are investment pieces meant to provide lasting value for decades at a time. But if the worst does happen, a leak springs, or the roof’s color doesn’t hold up as long...
Our Experts’ Guide to Tuf Rib Metal Roofing
Tuf Rib Metal Roofing Systems Ah, Tuf Rib metal roofing panels—they’re just great, all-around panels! These exposed fastener panels are well-known for their light gauge look...
Sponsoring The Bozeman Stampede and Supporting Local Youth Ag Programs
GNMC is excited to sponsor The Bozeman Stampede on August 11th, 12th, and 13th, a local non-profit PRCA rodeo that benefits youth ag programs. Not only are we excited about the...
Headlining Sponsor of the 2022 Livingston Round Up Parade
One of the most fun ways to invest in our local communities is to support community events that bring everyone together. This year we were excited to be the headlining sponsor of...
Teaching the Next Generation: GNMC Donates Time and Materials to Park High Class
GNMC is dedicated to helping our whole community grow, and we’re always looking for opportunities to lend a hand and have an impact. This spring GNMC was proud to donate our time...
6 Things to Consider with Metal Roof Finishes
When it comes to metal roofing, the details are key to getting the most value out of your roof. We know the importance of choosing the right panel type for the project, but...
Get Updates on Weekly Lead Times

Great Northern’s lead times and updates around the shop. We want to keep everyone informed about the metal roofing industry and we hope to help inform and educate about steel roofing, trim, lead times, and the new machines we have in our shop.