METAL ROOFING MATERIALS

Aluminum roofing is lighter than steel and offers increased corrosion resistance. This key benefit of aluminum roofing makes it an ideal choice for homes built in marine and coastal environments.

Anodized aluminum is not a coating and therefore will not chip, flake, chalk or peel, making it a very durable, corrosion and abrasion resistant material. In addition, clear anodize product outperforms paint coatings in terms of SRI value and is considered “cool.”

Known as Natural Metal, both copper and zinc offer exceptional beauty as well as high corrosion resistance. Natural metal roofing develops a protective layer or patina with age for a stunning and distinctive look ideal for urban districts or historic settings.

Steel is the most common metal roofing material thanks to its high strength, low weight and long-term durability. It’s also typically the most affordable. All steel roofing is treated with a metallic coating layer to help prevent rust.

Granular coated panels are either thru-fastened or attached with hidden fasteners and coated with an acrylic coating with embedded stone granules on the surface. The panels may be installed over a batten/counter batten wood grid system or directly to the roof deck.

All steel roofing has a protective metallic coating on both sides of the sheet to help protect against rust. The metallic coatings are available in various grades, however MRA recommends a minimum of G-90 (90 ounces of zinc per 100 sq. feet of paneling) for galvanized steel or a minimum of AZ50 for Galvalume steel. Both metallic coatings provide increased longevity and rust protection.

Most residential metal roofing has a protective paint coating applied to the outside of either the aluminum or metallic-coated steel. Numerous color choices are available including energy saving options.