Lifespan. Our staff is available to help answer your questions and guide you on the steps needed to proceed with a steel project. Bare Galvalume and painted Galvalume sheets suffer rapid corrosion when in contact with mortar and concrete. You also have the option to opt-out of these cookies. Galvanized steel was developed in the 19th century for use in commercial applications as an alternative to bare steel. In fact, Galvalume aids in the longevity of the product in comparison to galvanized steel by over 50%. Sheffield Metals is a leader in the distribution of coated and bare metal products, as well as engineered standing seam metal roof (SSMR) & wall systems. Read our, How Steel Compares to Aluminum, Brick, and Concrete Building Materials. Most Galvalume -like galvanized steel- is coated. It could very well have a Kynar 500 or Hylar 5000 finish but, then again, it may not. Before Galvalume came into existence, most metal roofing was galvanized steel. We'll get to those as we continue through this article. Galvalume has barrier corrosion resistance and heat resistance similar to aluminized material and good bare edge galvanic protection and forming qualities like galvanized material. Galvalume should not be used in coastal environments or on animal enclosure structures. Youre not alone. Some solvents in the vanishing oil may affect the acrylic coating. Galvalume vs. G90 Return to Product Selection. Additionally, galvanized products will not stand up to the conditions associated with a coastal environment, including properties up against coastlines with breaking surfs, large bays, and marshes. Once the coating is scuffed, theres not much that can be done to fix the issue other than immediately replacing the scuffed panels. An advantage of Galvalume that stems from this concept is the fact that it has self-healing characteristics that help control the red rusting at the cut/exposed edges.
Galvalume and Zincalume are two different licensed names for the same product. Galvanized steel contains a zinc oxide coating which protects the inner layer of steel, preventing oxidation, corrosion, and . The thicker the layer of zinc, the longer you have before it corrodes away and exposes the steel substrate. We can also match virtually any custom color to suit any project. However there are circumstances, like being used in agricultural areas with animals, where Galvalume should not be used. With this treatment . Galvalume goes further in creating a protective barrier but galvanized is more widely available in many different component styles. Galvalume is easy to handle, tolerable, and doesn't have extensive special installation requirements. 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. However, there are some situations where Galvalume is not recommended for use. Without it, contact with the forming rolls in roofing sheet lines can leave permanent black abrasion lines on the sheet surface. Oiling will decrease the
The corrosion resistance offered by Galvalume can even surpass galvanized steel. Some of our acrylic suppliers are Henkel, Chemetall Oakite and TecCoat. Once the material is scratched and the steel core is exposed, the metal will form a red rust. However, there are some situations where Galvalume isNOTrecommended for use. It arrives ready to use and can be easily applied. Applications: Panel Systems, Roof Systems, Wall Systems, Exposed Fastening Systems Coverage Width: 36" Minimum Slope: 1:12 Panel Attachment: Exposed Fastening System Gauge: Gauge - 26 (standard); 24, 22 (optional) Finishes: Smooth (standard); Embossed (optional) Coatings: Galvalume Plus , Signature 200, Signature 300 Rib Spacing: 6" on Center However, because of the superior durability and corrosion resistance of Galvalume, 90+ percent of the metal roofing and wall industry in the early 2000s transitioned from galvanized substrates to a Galvalume substrate. PnX1oV95/FvS2 The difference between these two types of metals are based on how they are made, and how long theyve been around. Galvalume may also be referred to by its coating weights, AZ-50 and AZ-55. Though not painted, these products still need to be handled with care, or you risk scuffing or perforating the coating. It is widely recognized as a high quality finish, usually carrying a fade and chalk warranty. For more information regarding Galvalume metal, Galvalume metal roof, or other metal finishes, please contact a Bridger Steel team member or call 1.833.Steel.US. The thicker the layer of zinc, the longer you have before it corrodes away and exposes the steel substrate. Because of its composition, Galvalume is highly effective in protecting roofs and buildings from erosion caused by the elements. No substrate warrantiesArguably the most significant disadvantage to galvanized metal systems is the fact that the substrate doesnt have a warranty. This category only includes cookies that ensures basic functionalities and security features of the website. It does not require additional preparation of the surface including painting/coatings etc. I hope this helps a little bit.
Galvanized metal is a steel that is coated with rust-inhibiting zinc that protects the steel core from corrosion. Purchasing a thicker sheet or coil product (22 vs. 24 vs. 26-gauge). Can be rollformed dry without the need for additional lubricating oil. Thank you for your interest in Bunger Steel. , which may cause the roof to fail prematurely. We can roll, form, and cut your Galvalume panels to any length. % paints. Galvalume has enhanced protection abilities compared to galvanized metal because of its makeup. Additionally, these self-healing characteristics make failure in the roof field less likely with Galvalume systems. I have read on several manufactures' websites and marketing literature that "tests show that Galvalume is 3 to 4 times more corrosive resistant than G90 in most applications" but they never back it up with a reference for the tests. Galvanized . Galvalume is often supplied with a thin, clear acrylic coating. These cookies will be stored in your browser only with your consent. Corrugated Metal. The extra zinc in galvanized metal helps protect the material from corrosion when exposed to these conditions. Though once any part of the steel core is exposed, the metal will start to red rust, which is both unsightly and will eat away at the metal over time. Galvalume Plus TM is a coated steel sheet that combines the excellent corrosion resistance of a Galvalume TM coating with a clear, organic surface treatment. and we are working on a light commercial building. Typical G-90 galvanized standing seam metal roofs cost anywhere from $8.00 to $16.00 per square foot and fluctuate further based on your location, the installer, the material color, thickness, and more. Depending upon the thickness, color, and quality of the desired Galvalume panels, pricing ranges anywhere from $5.00 to $15.00 per square foot. Galvalume is a unique type of metal coating made from 1.6% silicon, 43% zinc, and 55% aluminum. Even though its a tough material, installers still find Galvalume easy to handle, rollform, cut, and beyond. Galvalume is ideal for standing seam roof applications and pre-fabricated metal wall panels. Will Call Gate Closes at 4PM, 1-800-328-6437 When youre looking into metal roofing, youll quickly come across two types in particular: Galvalume and galvanized. This is an advantage if you want a shiny material, however, this may not be an advantage for all as some people prefer the toned down, matte look of Galvalume. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Research indicates that Galvalume roofing could last as long as 50+ years in the right environment without any extreme corrosion. HOMEOWNERS: 750 sq. It is mandatory to procure user consent prior to running these cookies on your website. Features. Galvalume is a much longer-lasting material, with a lifespan about twice that of galvanized steel. Acrylic-coated Galvalume has a slightly heavier coating weight and includes a light acrylic coating that protects the Galvalume coating in the manufacturing process. Galvanized metal products have been around since the 17th century, but the process of galvanizing materials became a widespread practice in the early 19th century. Both galvanized steel and Galvalume weigh 100 to 150 pounds per 100 square feet and contain about 35% recycled steel post-consumer content. Galvalume is self-healing, meaning it eventually stops the rust from spreading over the panel. It is created using a 55% to 45% ratio of aluminum to zinc alloy with a small amount of silicon to ensure durable and even adhesion. Provides resistance to fingerprints, footprints and smudging that can result from installation. The coating the metal ends up ensures the product is made up of 55% aluminum, 43.4% zinc, and 1.6% silicone. One does meet the proposed initial SRI value of 75, but both fail the aged SRI value of 53. . The final factor to consider when debating between Galvalume vs. Galvanized metal is the look. Many contractors are familiar with working with both but consumers sometimes can lack the years of experience to know which is which and when each is best to use. Research conducted by theMetal Construction Association (MCA)indicates that Galvalume roofing could last as long as 40 to 50+ years without any extreme signs of corrosion. Galvalume was invented by Bethlehem Steel in 1972. Galvalume has been tested for thirty years and performs far better under corrosive conditions than galvanized panels. Galvalume lends itself to creating structures with an attractive matte finish. Galvalume and Galvanized coatings are not the same. Before we talk about the differences of each roofing material, lets briefly touch on their similarities. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. 12 0 obj Both types of metal are excellent for roofing, and they each have their pros and cons. WHEELING-NIPPON STEEL offers two enhanced products: Galvalume PLUS and Galvanized PLUS. Galvalume is not suitable for animal confinement because manure from the animals breaks down into ammonia gas over time and then reacts with the Galvalume coating. UINP%W+H>i1Do/F)]N"= Christiansted, VI 00820. (Note: Substrate or paint warranties are NOT available for Galvalume products within 1,500 feet of a coast.) (Note: Substrate or paint warranties are NOT available for Galvalume products within 1,500 feet of a coast.). Typical Mechanical Properties: (Commercial Steel) Yield Strength 38 - 53 ksi Tensile Strength 50 - 65 ksi Total Elongation 20-36% Hardness 50-65 HRB It is softer than polyester, making it highly formable without risk of cracking. Galvalume roofing material combines three of the most important metals used in roofing todaysteel, aluminum, and zinc. While both of these metal options are similar in some ways, they do have some differences you need to be aware of. By clicking Accept, you consent to the use of ALL the cookies. 4 0 obj Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. By: While galvanized steel has a protective layer of zinc that will erode before the steel, it is not completely impervious to rust in a long term span of time. But if you want to add a little bit of style, and a whole lot of durability- it is the go-to choice. 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