SMP Paint Finish AZ50/Galvalume® ♦ G90 Galvanized All information stated in the color chart is correct at time of printing and subject to change without notice. Just because a warranty has an extended time frame (45 years or even a “lifetime”), it does not necessarily mean that the warranty is better or that the product offers better performance. A606 Galvalume® Kynar 500® / SMP. McElroy Metal has created a video series to help educate our customers on the importance of selecting the optimal substrate and coating. Both finishes create stunning looks, reinforce metal's strength and add to its longevity. This high performance product offers the ultimate resistance against weathering and fading and is backed by our 30 year non-prorated finish warranty. Corrugated Metal. The cost for this grade is estimated at $70 per square, which is the same as 100 square feet in layman’s terms. Normally, Galvalume is offered in both bare and pre-coated (pre-painted) versions. Opinion is mixed from local contractors regarding the appropriateness of galvalume vs aluminum. We are an architecture firm in So. Galvalume vs. Galvanized. Since 1965, Kynar 500 ® resin based finishes have been used as a protective coating on metal architectural building products around the world and is still performing strong today. Warranty: 20, 25, and 35 year manufacturer warranties available. Galvalume is offered in both bare and pre-coated versions. With Galvanized substrates, the greater the amount of zinc the greater the protection against panel corrosion. Galvalume: Aluminum has tremendous corrosion resistance, so it will generally corrode more slowly than galvanized steel. Galvalume vs. Galvanized. See dealer finish samples for accurate color selections. Ft. Kynar Painted Standing Seam Cost - $2 to $4 Per Sq. Consumers often associate warranty with dependability and performance. Warranties for galvalume and galvanized roofing will call out a certain acceptable amount of rust from any edge that is cut within a specified period of time. These designations relate to the total amount of zinc contained on both sides of the panel surfaces. Galvalume® Galvanized Steel Electro-Galvanized Galvannealed Steel GalXC® Steel. Iron or steel can be coated with zinc; this is known as a galvanized metal. Q. All colors are … Research on silicone polyester and acrylic paints vs. Kynar 500 ® PVDF resin-based finish proves the durability time and time again. via ABC Metal Roofing. Additional articles related to metal roofing can be found on Bryan’s LinkedIn page here: https://www.linkedin.com/in/bryanrusch, Categories: Articles, Education, Metal Roofing, Technical. Warranty on all Kynar 500® coated metal, and a 25-Year Non-Pro Rated Warranty on Acrylic Coated Galvalume. Warranties are also a consideration when selecting a metal panel. We are an architecture firm in So. We specialize in providing painted Galvalume® and aluminum for the architecturally driven metal panel industry. To illustrate differences in performance between galvanized and Galvalume steel, let’s consider how these two kinds of steel would perform in an uncoated/unpainted steel roofing application. The makeup of the three elements in a Galvalume coating is just over 50% aluminum, just under 50% zinc, with trace amounts of silicon. In the photo above we are beginning to see the failure of the paint finish along the seam of the bent metal. Created Date: 4/27/2020 … That is the base metal used for the roof. a pure substance unless otherwise indicated. You also do not want the fasteners holding your roof on, which may also be galvanized undergoing deterioration. Similar warranties do not exist for Galvanized. Why? Englert . The alloy coating of aluminum and zinc combines the best properties of both metals. In one test, shown in the photos above, unpainted Galvalume and Galvanized panels were placed in four different types of outdoor environments, including normal marine and a rural setting. Acrylume & Galvalume. Specialty Painted Finishes- $2.50 to $3.50 Per Sq. 16 oz copper. We want to get a new roof for our home, and we want to make sure that it is durable and aesthetically pleasing so that it will still look good even if rains pour down in our area. Finishes based on Kynar 500® FSF® resin are formulated by Kynar 500® FSF® trademark licensees and contain, in addition to Kynar 500® FSF® resin, solvents and high quality pigments. Galvalume® has a life expectancy of up to 9 times longer than comparable Galvanized coatings and has become the industry standard for metal roofing materials. Rust costs America more than $400 billion per year—more than all other natural disasters combined. The cost of Galvalume and Galvalume Plus are about the same as that of galvanized steel. I have a choice between painted roofing material and acrylic coated galvalume. Englert . Consult your KYNAR® products representative if you have any questions or for more recent results. Unpainted Galvalume vs. galvanized steel exposure over time. Still not sure which coating is right for you? Galvalume sheet is conditionally warranted against rupture, structural failure or perforation due to corrosion for a period of up to 25 years and six months when used for building panel applications. Galvalume steel comes in various gauges that determine the quality and price. However, wear occurring along the roof’s drip edge where all the water and snow run off will eventually wear away the aluminum coating once the paint finish fails, and rust will ensue. This would not happen in a Kynar resin paint finished aluminum roof. Kynar® Finish vs. .032 mill finish or pre-painted aluminum. Ft. The main difference between galvanizing and Galvalume is that galvalume is a combination of zinc, aluminum, and silicon, while galvanizing is 100% zinc. Note that no fade or chalking on the darker Kynar 500 (PVDF) panels is present during the same eight-year window. 24 Gauge x 24" AZ-50 Galvalume Steel Roofing Coil with Kynar 500 Finish Item #: 344391 Manufacturer #: 2424EM There are a variety of steel substrates and coatings available in the marketplace and the wrong selection could result in disappointment and reduced service life. Is there any way to repair or paint the rusty areas ? AZ-55 Galvalume® is commonly used for bare Galvalume® where AZ-50 is made to be coated with paint such as SMP or Kynar 500®. There’s simply no other choice to consider other than Kynar 500 ® for metal roofing materials. Classic Metal Roofs LLC |. If you examine the photograph closely, you will see the paint finish has chipped away underneath the drip edge where the steel base metal has begun to deteriorate (rust). Aluminum, as you remember, is used to coat steel in the galvanized and galvalume products. 201 Stainless Steel 301 Stainless Steel 304/304L Stainless Steel 316/316L Stainless Steel 409 Stainless Steel 430 Stainless Steel. We want something that will last as long as we remain here, so maybe we’ll go with aluminum. We will focus on two widely used base metals used in roofing: steel and aluminum. Galvalume vs. Zincalume 2003. Stehfalz Galvalume / Kynar Zitate: $ 27–37K. Contact. Over time, these environmental conditions will break down the coating resulting in panel fade and chalk. The most popular coatings for metal panels are Kynar 500® (PVDF), Silicone Modified Polyester (SMP) and Polyester. To illustrate the difference in performance between galvanized and Galvalume steel, let’s consider how the two kinds of steel would perform in an uncoated/unpainted steel roofing application. Doing this will extend my house’s lifespan while keeping it safe from water damage. Between Glavalume® vs. galvanized, which lasts longer? The most popular steel substrates in the metal roofing and siding industry are Galvanized and Galvalume. As seen above, in less than 10 years the PVDF fade resistance difference is clear. Thanks for your assistance. Corrosion is the death of metal roofing, as we all know. But Galvalume has an excellent performance life in bare exposures as well. Exposure testing, however, has proven that Galvalume is up to three times more effective in preventing rust than galvanized steel material. The coating system, or paint, for metal panels is just as important as the substrate. Once corrosion has penetrated any steel roofing substrate, steel integrity will suffer and your steel roof will begin to fall apart. On day one, the colors were an identical shade of green. Corrugated Metal. 4072-19 FOR MORE INFORMATION, PLEASE CONTACT US: Western States Metal Roofing 901. We are going to cover a vital item that is highly significant when it comes to residential applications. Your email address will not be published. Written by Bryan Rusch, Partner at Classic Metal Roofs LLC. The benefits of metal roofing in New England cannot be disputed. The photo below, taken only eight years later, tells a powerful story of the differences between the paint systems as it highlights both chalk and fade of the SMP paint system. I would also like to know what a "fluoro" finish is. Aluminum is a silvery-white, soft, nonmagnetic, ductile metal. Roofing and Construction: Why use Aluminum? I suspect not. Return to Archive. The photo above shows the drip edge and rib bend in the galvalume standing seam roof of the same home. Required fields are marked *. How is the surface prepared for a "Kynar" finish? But Galvalume has an excellent performance life in bare exposures as well. The zinc-aluminum alloy provides corrosion resistance that is in most cases superior to galvanized steel, which is is coated with a very thin layer of zinc. January 26, 2017 By Bryan Rusch 7 Comments. Galvalume is an engineered coating consisting nominally of 55% Al, 43.5% Zn and 1.5% Silicon. This article is something that I have been looking for It was a great read! Two commonly used Galvanized substrates are designated as G100 and G60. Which base metal assures no rust whatsoever over the course of the roofs life? Galvanized VS. Galvalume Substrates. Note that there is no color difference between the original roof and the addition. Cal. About Us Why Gulf Coast Our Story Careers. For Homeowners Types of Metal Roofing Photo Gallery Roof Visualizer Color Selector Metal vs Shingles Roofer Locator Warranties. Stainless Steel. Specialty Painted Finishes Cost - $3 to $5 Per Sq. Galvalume and galvanized steel roofing are affected differently by corrosion. High Seams - High seam panels have a greater benefit versus a lower seam panel for moisture penetration. After reading this article, I realize that wouldn’t be a bad idea. All base metals have distinct properties which contribute to advantages and disadvantages in longevity and appearance when applied in various climate zones. Both Galvalume and Galvanized are good substrates for metal panels. Resources “Roof Talk” Blog Product Catalog Brochures Engineering Specs Manuals Product Approvals. Your email address will not be published. Over four decades of testing has shown that Galvalume delivers superior corrosion resistance compared to Galvanized panels. The high reflectivity, emissivity and solar reflectance index (SRI) of Berridge metal roofing helps mitigate the heat island effect. Steel can be used for structural roofing and architectural roofing. Return to Forum. For example, a galvalume section that is 16'X3', known as a Classic Rib Steel Roof Panel, is 29-gauge steel and comes with a 25 year warranty. Galvanized substrates are coated in zinc, while Galvalume substrates are coated with an alloy of zinc plus aluminum. Ft. Zinc: 0.7 mm, 0.8mm and 1.5 mm. When shopping for metal roofing, purchasers must be vigilant to ensure the substrate and coating on the metal panels they choose will match their long-term performance expectations. Seams also known as ribs are raised to prevent water penetration and help prevent water leakage into the interior, and diverts water down the roof to a drain point. 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