Saturday, February 9, 2008
Types of Metal Roofs: Shingles
Shingles and Tiles Metal roofs can also be made to resemble wood shakes, clay tiles, shingles, and Victorian metal tiles. To create the desired look, aluminum or coated steel can be pressed or formed into individual realistic shapes. Individual shingles or tiles work best when roofing a home that has curving roof planes or intricate roofs.Conversely, sheets of aluminum or pre-coated steel, approximately 4 feet in length, are pressed into modular panels through a stamping process creating the look of individual shingles, shakes, slates, or tiles. The benefit of this type of roofing is that it is designed for quick installation; installers only have to work with one larger piece as opposed to numerous smaller pieces. Available through regular distribution channels, modular panels are readily obtainable.In addition, metal sheets can also go through both processes -- roll forming and stamping. These panels receive roll-form elements, but also are stamped into consistent patterns on one large sheet.http://www.ultraseam.com/
Types of Metal Roofs: Galvanized Steel
Types of Metal Roofs: Galvanized Steel
Galvanized steel is the most common metal choice for a metal roof. The material is affordable and offers excellent structural capabilities. Plain steel is coated with a layer of hot-dipped commercially pure zinc to provide corrosion protection. Zinc is considered a sacrificial element and works well as a metallic coating. When the metal is cut or damaged, the zinc coating will protect that area from corrosion. Galvanized steel is warranted against corrosion for up to 20 years and offers excellent barrier protection. Galvanized metallic coatings are designated G-30, G-60, and G-90. This means that the weight of zinc on the steel is 30.-, 60.-, or 90-oz. per square foot, counting both the top and the bottom side of the sheet. The Metal Roofing Alliance recommends the use of only G-90 for roofing applications.Galvalume steel combines the metallic coatings of both aluminum and zinc. This combination joins the healing properties of zinc with the superior barrier protection of aluminum. Galvalume steel offers superior weathering properties and is used in various application weights, the most common being AZ-55. http://www.ultraseam.com/
Galvanized steel is the most common metal choice for a metal roof. The material is affordable and offers excellent structural capabilities. Plain steel is coated with a layer of hot-dipped commercially pure zinc to provide corrosion protection. Zinc is considered a sacrificial element and works well as a metallic coating. When the metal is cut or damaged, the zinc coating will protect that area from corrosion. Galvanized steel is warranted against corrosion for up to 20 years and offers excellent barrier protection. Galvanized metallic coatings are designated G-30, G-60, and G-90. This means that the weight of zinc on the steel is 30.-, 60.-, or 90-oz. per square foot, counting both the top and the bottom side of the sheet. The Metal Roofing Alliance recommends the use of only G-90 for roofing applications.Galvalume steel combines the metallic coatings of both aluminum and zinc. This combination joins the healing properties of zinc with the superior barrier protection of aluminum. Galvalume steel offers superior weathering properties and is used in various application weights, the most common being AZ-55. http://www.ultraseam.com/
Types of Metal Roofs: Galvanized Steel
Types of Metal Roofs: Galvanized Steel
Galvanized steel is the most common metal choice for a metal roof. The material is affordable and offers excellent structural capabilities. Plain steel is coated with a layer of hot-dipped commercially pure zinc to provide corrosion protection. Zinc is considered a sacrificial element and works well as a metallic coating. When the metal is cut or damaged, the zinc coating will protect that area from corrosion. Galvanized steel is warranted against corrosion for up to 20 years and offers excellent barrier protection. Galvanized metallic coatings are designated G-30, G-60, and G-90. This means that the weight of zinc on the steel is 30.-, 60.-, or 90-oz. per square foot, counting both the top and the bottom side of the sheet. The Metal Roofing Alliance recommends the use of only G-90 for roofing applications.Galvalume steel combines the metallic coatings of both aluminum and zinc. This combination joins the healing properties of zinc with the superior barrier protection of aluminum. Galvalume steel offers superior weathering properties and is used in various application weights, the most common being AZ-55. http://www.ultraseam.com/
Galvanized steel is the most common metal choice for a metal roof. The material is affordable and offers excellent structural capabilities. Plain steel is coated with a layer of hot-dipped commercially pure zinc to provide corrosion protection. Zinc is considered a sacrificial element and works well as a metallic coating. When the metal is cut or damaged, the zinc coating will protect that area from corrosion. Galvanized steel is warranted against corrosion for up to 20 years and offers excellent barrier protection. Galvanized metallic coatings are designated G-30, G-60, and G-90. This means that the weight of zinc on the steel is 30.-, 60.-, or 90-oz. per square foot, counting both the top and the bottom side of the sheet. The Metal Roofing Alliance recommends the use of only G-90 for roofing applications.Galvalume steel combines the metallic coatings of both aluminum and zinc. This combination joins the healing properties of zinc with the superior barrier protection of aluminum. Galvalume steel offers superior weathering properties and is used in various application weights, the most common being AZ-55. http://www.ultraseam.com/
Types of Metal Roofs: Copper
Types of Metal Roofs: Copper
Copper has a life expectancy measured in centuries; however, the material is very costly. Many will recognize copper roofs for the characteristic patina-green color that occurs when the copper oxidizes. Copper retains its original color when an acrylic layer is applied. Strong and very resistant to corrosion, copper is also easy to roll into sheets, but installation may be intricate.http://www.ultraseam.com/
Copper has a life expectancy measured in centuries; however, the material is very costly. Many will recognize copper roofs for the characteristic patina-green color that occurs when the copper oxidizes. Copper retains its original color when an acrylic layer is applied. Strong and very resistant to corrosion, copper is also easy to roll into sheets, but installation may be intricate.http://www.ultraseam.com/
Types of Metal Roofs: Zinc
Types of Metal Roofs: Zinc
Zinc offers exceptional corrosion resistance. Like copper, this material also changes color as it oxidizes, turning a bluish-white. Zinc is malleable, enabling the creation of many attractive individual shingles and tiles.http://www.ultraseam.com/
Zinc offers exceptional corrosion resistance. Like copper, this material also changes color as it oxidizes, turning a bluish-white. Zinc is malleable, enabling the creation of many attractive individual shingles and tiles.http://www.ultraseam.com/
Types of Metal Roofs: Aluminum
Types of Metal Roofs: AluminumAluminum is an affordable and extremely lightweight roofing material. It can be used either painted or unpainted; regardless, it will need a finish. Aluminum has a high coefficient of expansion, causing some thermal movement. Like steel, aluminum has a high strength-to-weight ratio. In addition, this material has excellent corrosion resistance and is ideal for coastal environments.http://www.ultraseam.com/
Types of Metal Roofs
Types of Metal Roofs
Standing-seam metal roofs have been popular for centuries. The term standing seam is used to describe any type of joinery that uses an upturned portion of the metal to connect adjacent metal sections. The joinery raises the seam above the drainage plane of the panel, creating its distinctive vertical lines. In the past, the original standing-seam roof involved only the 90-deg. adjacent metal upstands that could be single or double folded at the top. Today standing-seam joints are held together with a concealed clip, or cleat, at the seam. The clip involves a male and a female upstand that joins with or without seaming. Other versions of standing seam incorporate a nailing flange to the roof, which is then covered up by the next panel as it is snapped into place.http://www.ultraseam.com/
Standing-seam metal roofs have been popular for centuries. The term standing seam is used to describe any type of joinery that uses an upturned portion of the metal to connect adjacent metal sections. The joinery raises the seam above the drainage plane of the panel, creating its distinctive vertical lines. In the past, the original standing-seam roof involved only the 90-deg. adjacent metal upstands that could be single or double folded at the top. Today standing-seam joints are held together with a concealed clip, or cleat, at the seam. The clip involves a male and a female upstand that joins with or without seaming. Other versions of standing seam incorporate a nailing flange to the roof, which is then covered up by the next panel as it is snapped into place.http://www.ultraseam.com/
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