Great Northern Metals Co.
Our Resources
Helpful Guides and How-Tos on all things roofing
The Importance of Metal Roof Slope: Why 3:12 or Higher Matters in Panel Selection
Over the years, we’ve seen a dramatic increase in the number of low-slope roofs in both commercial and residential roofing projects in Montana. While low-slope roofs have a sleek aesthetic and can be useful in certain climates, they’re not as effective as you...
Avoid Mistakes: How to Order Metal Roofing
Ordering metal roofing—it’s all in the details! Unfortunately, it can be very easy to make a mistake when ordering...
Measuring A Roof For Metal Panel Installation
How to Measure a Roof for Metal Roofing Measuring a roof for metal roofing, whether it be new construction or remodel,...
4 Reasons to Consider Textured Metal Roofing
With Montana's unpredictable weather, your choice of roofing isn't just about aesthetics—it's a practical necessity....
Teaching the Next Generation: GNMC Goes Back for the Second Year to Help Park High Students Put Roofs on Their Sheds
GNMC makes a return to Park High in Livingston to help students in the Industrial Technology class put metal panels on their sheds. GNMC was proud to teach these students how to...
Are Metal Roofs Fire Resistant? Evaluating their Strength against Flames
Let’s face it: when you live in a state like Montana, you need to be prepared for just about anything, especially during wildfire season. From May through October, the Big Sky...
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 &...
Glossary of Metal Panel Trim Names & Types
We get it—there are a lot of different terms and words used in the metal roofing industry that would make anyone’s head spin trying to get them straight. To help you make...
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...
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.