Types of Metal Roofing

Metal Roofing is available in a variety of materials. These metals bring a combination of strength, flexibility, and longevity that will compliment any home.

Vertical Seam Panels

Thru-fastened panels are long-length panels that have ribs running from the eave to the ridge of the roof. These panels are fastened with gasketed screws that penetrate the panel into the roof decking substrate. Typical of this type of roofing is 5-V, which is used extensively in the Southeastern U.S. Many mountain homes and cabins also use thru-fastened panels very successfully.

Residential standing seam panels with an attachment flange hidden by the next panel are growing in popularity throughout the country. The fact that the attachment point is covered by the adjacent panel makes for a very clean looking installation and protects against weather.These panels are steel, aluminum, copper, zinc or terne metal.

On longer length standing seam panels (over 20 feet) hidden moveable clips are attached to the roof deck and the seam of the roof panel. This arrangement allows for movement of the panel due to thermal expansion and contraction of the roof panel during the day and night.

Modular Press-formed panels-prepainted

Modular Press-formed prepainted panels are painted interlocking panels with standard dimensions and shapes and are growing in popularity for residential applications. They may be steel, aluminum, copper, zinc, or terne metal. These panels may resemble wood shake, tile, slate or shingles.

The roof panels are attached with hidden fasteners directly to the roof deck in most applications. They are usually 4-way interlocking to provide exceptional wind up-lift resistance.

Modular Press-formed Granular Coated

Modular Press-formed granular coated are standard dimension panels that are either thru-fastened or attached with hidden fasteners and coated with an acrylic coating with embedded stone granules on the surface. Shake, tile, and shingle shapes are all made out of 26 gauge steel. The panels may be installed over a batten/counter batten wood grid system or directly to the roof deck.

Water Shedding Systems

All of the roofing systems listed on this website are considered "water shedding" roofing systems. The products usually require a roof slope of 3:12 or greater. For each 12 inches of run (eave to ridge) the roof must rise-up at least 3 inches.

There are low-slope "water tight" metal roof systems that can be applied to flatter roofs and many of the MRA manufacturers produce those types as well.

Zinc

Zinc is a naturally occurring metallic chemical element and the 24th most abundant element in the Earth's crust. Compared to aluminum, copper, and steel, it also requires a fraction of the energy to convert into usable materials. And architectural zinc is fully recyclable, from construction scrap to end of use, which lowers the energy use for manufacturing even further. Zinc develops a protective layer, called zinc hydroxyl-carbonate that blocks moisture and chemicals from penetrating to the zinc beneath it. And if that protective layer is ever scratched, the hydroxyl-carbonate will reform over time making zinc naturally resistant to corrosion. The flexibility, malleability, and versatility of zinc, combined with its pleasing aspect, make it the material of choice for imaginative building projects, from individual homes to commercial complexes, new construction and renovation.

Rainwater Goods

For almost 100 years, zinc has remained the most commonly used material for rainwater goods, including gutters and downspouts, in Europe. Zinc rain ware last for decades and the run-off is not harmful to the environment. Zinc's outstanding malleability means that numerous kinds of rainwater goods and ornaments are available in Natural zinc, QUARTZ-ZINC and ANTHRA-ZINC.

Accessories

Zinc accessories can accent any home with finials, weather veins, post covers and/or dormers made out of zinc.

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