If you're looking in the market to purchase a metal roofing system, there are several metal material options to choose from, including steel, aluminum, copper, zinc, galvanized, and more.
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While not as popular as steel (Galvalume), aluminum is a common metal roofing material installed in coastal environments where saltwater is prevalent. That being said, how much do you know about aluminum? Do you know the critical advantages and disadvantages of this metal roofing material?
At Sheffield Metals, we supply painted/bare Galvalume and painted aluminum sheets and coils for the architectural metal roofing and wall industry. We know how important it is for you to be an educated buyer, so let's dive into the specific details of aluminum and why it may or may not be a good choice for your project.
Ahead in this article, we cover:
Aluminum is a lightweight, silvery-white metal that is element 13 on the periodic table of elements.
Aluminum is the third most abundant element on Earth and makes up more than 8% of the Earth's core mass. However, aluminum never occurs in its commonly thought of metallic form in nature. Instead, its compounds, usually aluminum sulfates, are present in nearly all types of rocks, plants, and animals.
According to All In Aluminum:
'Formally, aluminum was produced for the first time in 'The discovery of aluminum was made possible when scientists were able to use electricity to break down chemical compounds into their elements. In the 19 century, the Danish physicist Christian Oersted used electrolysis to obtain aluminum. Electrolysis or electrolytic reduction is the process that is used to produce aluminum today as well.'
Today, aluminum is widely used as a product material in various industries, especially:
So how is aluminum used in metal roofing? There are a few key characteristics and uses to point out.
Aluminum sheet and coil products used to make panels are sold according to the thickness in inches (usually in decimal form), so the higher the number/decimal, the thicker the aluminum material. There are varying thicknesses of aluminum; which one you should purchase is often dependent on the application:
Overall, aluminum is suitable as a roof, wall, trim, and more in several different environments, including coastal environments, hurricane zones, locations with high rain or snowfall, high-temperature regions, and more.
Some common uses for aluminum include:
Aluminum is unique in how it handles the minimal corrosion it experiences. When it does corrode, it doesn't red rust as steel does; instead, it oxides and forms hard oxidation (or oxide film) on its coating, which actually protects the aluminum. This helps to preserve the metal and make it last in very corrosive environments, like coastlines. Plus, the oxidation forms rather quickly so there's no edge creep that eats up the panel like a steel substrate with red rust.
One of the most significant selling points of aluminum is that it can be installed in coastal environments. As we mentioned, aluminum has much better corrosion resistance than steel products, especially in harsh coastal environments where saltwater can wreak havoc on a metal roofing system. Because aluminum oxidizes as it starts to corrode, it actually makes it stronger and prolongs the life of the system on the coast.
Aluminum is the metal material most commonly installed in the Caribbean Islands (inland and on the coast, as salt residue in the air can cause Galvalume and other steel products to rust), on the Atlantic coastline, the Gulf Coast, and the Pacific Coast.
Best of all, aluminum roofing systems still carry a PVDF paint warranty when installed in coastal areas.
With something as important as your roof, purchasing a product that carries a warranty is always recommended. Luckily, aluminum metal roofs come with a variety of warranty options, including paint, substrate, and weathertight warranties, which help to protect your investment and provide peace of mind that the roof or wall system will last. (Note: Check with your manufacturer for specific warranty types and timeframes offered.)
There are even paint warranties on aluminum sheets/coils used in coastal applications. For example, Sheffield Metals offers a 25-year PVDF paint warranty for coastal properties and a 20-year PVDF paint warranty for Caribbean properties.
Plus, commercial property owners can buy a weathertight warranty for their aluminum roofing structure, which ensures the roof was installed correctly and adheres to strict installation details. Learn more about Sheffield Metals' weathertight warranties in this comprehensive article.
Sustainability in construction has become vitally important in the past 20 to 25 years, which is how metal products rose to prominence. Metal is almost always recyclable in one way or another, and aluminum is one of the most reusable and sustainable metals in the world. For reference, about 95% of all aluminum roofing systems installed worldwide are made from previously recycled aluminum materials. At Sheffield Metals, we use a series aluminum alloy () primarily made from previously recycled materials and very little pure aluminum.
Aluminum's high recyclability and reusability are why many architects and building owners choose aluminum for their projects, especially those looking to meet LEED certification requirements. LEED is the most widely used building rating system that provides the framework for 'healthy, efficient, carbon and cost-saving green buildings.'
Metal roofing in general is one of the lighter roofing materials, which helps to reduce the added stress on a building's frame. Aluminum is one of the lightest metal materials, especially when compared to steel products.
For a little background: When you compare gauges and thickness on a weight-per-square-foot basis, 24-gauge Galvalume typically measures as .023' or .024' in thickness. The comparable aluminum thickness is .032' (equivalent to 24-gauge Galvalume in strength), so the aluminum is thicker but only half the weight. A typical 24-gauge Galvalume roof weighs anywhere from 1 to 1.5 pounds per square foot and a .032 aluminum roof weighs less than .5 pounds per square foot.
The lightweight properties of aluminum make it easier for contractors/installers to transport, handle, and get panels onto the roof deck. Plus, if you're running panels on-site with a portable rollforming machine, a lighter coil can be easier to transport and puts less stress on the machine Note: Keep in mind that because aluminum is thicker, aluminum coils will be slightly less lineal footage.
Aluminum is the third most abundant element in the Earth's crust and, as discussed before, is usually made from already recycled metals. This makes it a common metal sheet and coil product that many manufacturers carry as part of their standard product lines. Plus, there are many skilled and qualified contractors who know how to properly install aluminum according to the manufacturer's recommended installation details.
Aluminum sheet and coil products usually come in similar, if not the same, color options as Galvalume. So, if your project requires an aluminum panel system, you don't have to compromise on the color.
This drawback is both a benefit and a disadvantage of aluminum. On one hand, aluminum is more malleable than steel, which means it can be bent and manipulated much easier and won't suffer breaks or cracks as easily. This is helpful during the rollforming and fabrication of panels.
However, since aluminum is a little softer and more malleable, it has been known to dent easier than other metals during and after the installation. Contractors should be extra careful when handling and installing aluminum materials/panels. Additionally, if a structure is beneath trees or other objects that could fall on the roof, another type of metal material may be a better option to help preserve the aesthetic of the roof.
Luckily, the tensile strength of aluminum is comparable to steel, but aluminum is just more susceptible to surface denting.
Aluminum is in the mid to high price range for material cost, which makes it not the most affordable metal material option. Aluminum standing seam metal roofs come in at a price point of about $7 to $18 per square foot depending on thickness, finish, profile, location, installer, and many other factors.
For more information, please visit painted aluminum coil.
Keep in mind that in and , aluminum and steel prices are continually fluctuating, so the price can vary dramatically.
Aluminum expands and contracts roughly twice as much as a steel roof. This is something that contractors need to be aware of during the installation to allow enough room for the thermal movement of the panels. This is especially important when using a mechanically seamed panel in lengths greater than 15-20 feet. For panels this length, it's recommended that an expansion clip be used in accordance with the applicable engineering.
Restricted expansion and contraction of an aluminum roof can cause oil canning, increased noise, and more required maintenance on any exposed fasteners.
Using a bare aluminum product with its original natural silver-gray color isn't usually recommended. As the metal ages, experiences weathering, and oxidizes (white rust), it doesn't hold its original mill-finished color and often becomes washed out and spotty.
The best way to overcome this issue is to buy painted roofing coils or panels, which will age much cleaner over time because the paint covers any of the metal color changes.
Aluminum is a great roofing material for several applications, but it's still important to know when and where it should be installed.
To recap:
Sheffield Metals is dedicated to educating customers and potential buyers so they can make the most informed decision about the best metal material for their roofing project ' aluminum or otherwise. Whether you're a contractor, architect, manufacturer, property owner, or beyond, we can work with you to choose the right material for your project(s).
When it comes to enhancing the exterior of your home or managing construction projects, aluminum trim coil is a game-changer. But what exactly is aluminum trim coil, and why has it become a staple in the construction and home improvement industry?
Aluminum trim coil is a versatile material used for finishing and protecting the edges and corners of various structures. Made from aluminum, it is typically coated or painted to enhance durability and aesthetic appeal. Aluminum trim coil plays a crucial role in both residential and commercial projects. It provides a sleek, polished look to buildings while offering protection against the elements.
One of the standout benefits of aluminum trim coil is its durability. It withstands harsh weather conditions, including heavy rain, snow, and intense sunlight, without corroding or deteriorating.
Available in a plethora of colors and finishes, aluminum trim coil can match any architectural style. Whether you prefer a smooth or embossed finish, there's an option that will suit your needs.
While the initial cost might be higher than some materials, aluminum trim coil offers long-term savings due to its minimal maintenance requirements and long lifespan.
A smooth finish provides a clean, modern look, making it a popular choice for contemporary homes and commercial buildings.
An embossed finish adds texture and depth, ideal for creating a more traditional or rustic appearance.
With a range of color-coated options, you can easily match the trim coil to your existing color scheme or create a striking contrast.
Copper gutters are a type of gutter system made from high-quality copper, designed to channel rainwater away from the roof and foundation of a building. Unlike traditional gutter materials such as aluminum or vinyl, copper gutters offer a unique combination of durability, aesthetics, and longevity.
Copper gutters are incredibly durable and can last for decades, often outliving the buildings they are installed on. The natural properties of copper make it resistant to corrosion and weathering, ensuring that your gutters will remain functional and intact through harsh weather conditions.
One of the most notable benefits of copper gutters is their aesthetic appeal. Copper starts with a bright, shiny appearance that gradually develops a beautiful greenish patina over time. This patina is highly sought after for its classic, timeless look, adding a touch of elegance and character to any building.
Copper gutters require very little maintenance compared to other materials. The patina that forms on copper acts as a protective layer, preventing rust and corrosion. This means you won't need to worry about frequent repairs or replacements, making copper gutters a hassle-free option in the long run.
While the initial cost of copper gutters can be higher than other materials, their longevity and low maintenance requirements make them a cost-effective choice over time. Investing in copper gutters can also add value to your property, as they are considered a premium feature by many homebuyers.
Copper is a natural material that is fully recyclable. Using copper gutters reduces the need for synthetic materials, which can have a more significant environmental impact. Additionally, the long lifespan of copper gutters means fewer resources are used over time for replacements and repairs.
Copper has natural anti-fungal and anti-microbial properties, which means that mold and mildew are less likely to grow in or on copper gutters. This keeps your gutter system cleaner and more efficient, preventing blockages and other issues related to mold growth.
Copper gutters can withstand extreme weather conditions, including heavy rainfall, snow, and ice. Their sturdy construction and resistance to thermal expansion and contraction make them an ideal choice for areas with variable climates.
When deciding between aluminum and copper gutters, homeowners need to weigh several factors, including cost, durability, aesthetics, and maintenance requirements. Aluminum gutters are a popular choice for many due to their affordability and versatility. They are lightweight, easy to install, and available in a wide range of colors to complement any home exterior. Additionally, aluminum gutters resist rust and corrosion, making them a practical choice for various climates. However, they can be susceptible to dents and damage from heavy snow or falling debris, and while they are durable, they generally don't last as long as copper gutters.
Copper gutters, although more expensive upfront, offer significant long-term benefits. They are renowned for their durability and can last for decades with minimal maintenance. The distinctive aesthetic appeal of copper, which develops a beautiful green patina over time, adds a touch of elegance and historical charm to any property. This natural patina not only enhances the visual appeal but also acts as a protective layer, preventing corrosion. Copper gutters are also highly resistant to weathering and can withstand extreme conditions without deteriorating. While they are heavier and require professional installation, the investment in copper gutters can be justified by their longevity, low maintenance, and the added value they bring to your home. Ultimately, the choice between aluminum and copper gutters will depend on your budget, aesthetic preferences, and long-term maintenance considerations.
An aluminum trim coil is a versatile material used for finishing and protecting the edges and corners of various structures. It offers durability, resistance to harsh weather conditions, and a wide range of colors and finishes, making it a popular choice for both residential and commercial projects.
Aluminum trim coil is generally more cost-effective than copper trim coil. While copper has a higher upfront cost, its long-term durability and low maintenance can make it a cost-effective option over time. Aluminum, on the other hand, offers affordability with good durability and low maintenance needs.
Yes, both aluminum and copper trim coils can be painted or coated. Aluminum trim coils are often pre-coated or painted to enhance durability and aesthetic appeal. Copper trim coils develop a natural patina over time but can also be coated to maintain their original shine or protect them from weathering.
Copper trim coil is more durable than aluminum trim coil. Copper's natural properties make it resistant to corrosion and weathering, allowing it to last for decades with minimal maintenance. Aluminum trim coil is also durable but may not have the same lifespan as copper, especially in harsh environmental conditions.
Aluminum trim coils are available in a wide variety of colors and finishes, offering versatility to match any design preference. Copper trim coils start with a bright, shiny appearance that develops a unique greenish patina over time, providing a classic and timeless look.
Contact us to discuss your requirements of painted aluminum coil for gutters. Our experienced sales team can help you identify the options that best suit your needs.