Oil canning is subjective and normally only an aesthetic concern that does not affect a product’s strength or performance. This occurrence is possible for any kind of metal roofing or walls, including Galvalume. It is a visual phenomenon seen as waviness or distortion in the flat surfaces of metal wall and roofing products. Oil canning – Oil canning is an inherent characteristic of light-gauge, cold-formed metal products, especially products with broad flat areas. Plus, commercial property owners can buy a weathertight warranty for their Galvalume roofing structure, which ensures the roof was installed correctly and adheres to strict installation details. Galvalume systems also often come with paint warranties that further protect your investment and provide peace of mind that the roof or wall system will last (substrate or paint warranties are NOT available for Galvalume products within 1,500 feet of a coast). Warranties – One of the number one selling points of Galvalume is the 25.5-year warranty on the substrate, which is sometimes referred to as a perforation warranty. It also doesn’t have many strict ventilation or air gap requirements like some other metals. Plus, Galvalume is a standard metal roofing product and doesn’t have too many special requirements, which allows the installation details to be pretty standard across the board. Even though it’s a tough material, installers still find Galvalume easy to handle, rollform, cut, and beyond. Installers don’t have to worry as much about leaving fingerprints, deep scratches, etc., on panels because Galvalume is tougher and a little more tolerable. Remember that edge creep can also be offset by hemming the panels and touching up any exposed edges with paint pens.Įasy to handle & install – Another benefit of Galvalume is that it’s not as temperamental as other metals used in the roofing industry, like copper and zinc. Nearly all steel-based products will experience some level of normal edge creep from the exposed steel when the coil is cut, but it is minimal and will eventually stop with Galvalume. Galvalume’s self-healing characteristics help control the red rusting at any cut/exposed edges. That’s why Galvalume’s corrosion resistance is about two to four times better than galvanized steel. Keep in mind that in 20, steel prices continually fluctuate and vary dramatically.Ĭorrosion resistant – Galvalume’s chemical formula was specifically designed to combine the toughness, strength, and self-healing properties of zinc with the rust-resisting properties of aluminum. Least expensive – Compared to other high-quality metal roofing materials, Galvalume costs the least amount of money. Depending upon the thickness, color, and quality of the desired Galvalume panels, pricing ranges anywhere from $5.00 to $15.00 per square foot. This process allows Galvalume to have some of the best characteristics of each metal, which is why it’s one of the most popular metals used in metal roofing. To create Galvalume, mills begin with a cold-rolled carbon steel base sheet that is then continuously hot-dipped with aluminum and zinc alloys (AZ) until it reaches a coating of 55% aluminum, 43.4% zinc, and 1.6% silicone. Galvalume, a flat rolled steel-based metal roofing material, combines three of the most high-performing metallic coatings used in roofing today - steel, aluminum, and zinc. Galvalume® Metal Roofingīethlehem Steel introduced the Galvalume coating to the construction industry in the early 1970s. Plus, we know how important it is to be an educated consumer, especially when purchasing something as significant as a new roofing structure. Luckily, there isn’t just one solution for every single customer, so the advantages and disadvantages of each metal should be discussed in depth with the contractor, distributor, architect, or manufacturer before making a final decision.Īs one of the leading distributors of coated and bare metal products in the standing seam panel system industry, Sheffield Metals helps individuals find the solution that will work best for their specific residence, building, or business every day. Whether you’re in the market to purchase a new metal roof, a distributor trying to sell metal coils or sheets to customers, or a contractor dealing directly with a home or business owner, it’s vital to know the pros and cons of different metal roofing materials.įive of the most common materials used in metal roofing are Galvalume®, aluminum, zinc, copper, and stainless steel.
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