How to Install Metal Roofing

How to Install Metal Roofing

There are many aspects of metal roofing that you must know if you want to have a metal roof for your home. The first step is to prepare your roof panels. You should space them at least 24 inches apart. Use screws to fasten panels in rows, sloping them toward the ridge. Make sure you drive the screws flat on the roof, as crooked ones will not seal properly. You should also be careful to tighten them so that the rubber gasket seals tightly around the screw head. After you have installed the roof panels, be sure you clean them off immediately, as rust can easily occur if you do not do so.

Installation process

Installation process

Installing a metal roof is a complex process that requires the use of special equipment. The process involves installing the panels and flashing on the roof and also involves the removal of old roofing. The installation of metal roofs requires the removal of existing shingles and, if possible, gutters. The process also requires the use of scaffolding and ladders. Safety precautions are crucial and homeowners and contractors are encouraged to follow them.

Before choosing a metal roofing contractor, you should check their reviews and ask for referrals. You can read online reviews or ask friends, family members, or neighbors who have recently had metal roofing installed. You should ask them if the contractor followed the installation details specified by the manufacturer. The details that the manufacturer gives will ensure that the roof got the correct installation and is structurally sound.

The first step in installing a metal roof is to take measurements of the roof. The measurements that you take will include the square footage, the distance from ridge to eave, and the pitch of the roof. Once you have these measurements, the contractor will calculate the area of the roof and determine the required material and installation process. The contractor will also advise you on what type of material to use and which gloss finish to go for.

Usually, you can install a metal roof over an existing asphalt shingle roof. However, it is advisable to tear off the old roofing materials first. This will ensure that your metal roof does not cause damage to your roofing structure. It is also a good idea to inspect your roof carefully for any signs of water damage.


When you are installing a metal roof, you will need to use specialized tools. These tools are made for different types of roofing and will vary in price. Roofing snips and a chalk line are commonly used for aligning panels and underlying weather shielding. Other items you will need to install a metal roof include adhesive and caulk.

Underlayment is a waterproof and vapor-proof material that lies beneath the top layer of the metal roof. It adds an extra layer of protection and is the cheapest material to use. Felt is made from asphalt, which is water-resistant but doesn’t stand up well to high temperatures. It also doesn’t last as long as other underlayment materials.

Before you can install a metal roof, you’ll need to know how to measure your roof. Make sure to measure your roof from the ridge to the eaves. You can also use a measuring tape, chalk and line system, or a laser leveler to accurately measure the area. Once you’ve determined the area of your roof, you can start determining how many panels you need to install. You can find standard sizes at a home improvement store.

You can also purchase metal roofing sheets in a variety of lengths. Usually, you can purchase metal roofing sheets in precut lengths. You can also buy metal roofing shingles in different widths, from 12 inches to twenty-four inches. For steep pitches, you can choose a rounded metal shingle. Similarly, you can purchase galvanized steel frames in different sizes. Installing a frame will support the panels and prevent them from moving during installation.

Flashing is another essential element in a metal roofing system. It covers the joint between panels. You’ll also use flashing on valleys and as an end cap over 2 sides that meet. Ensure that you cut the metal flashing correctly before installing it. Then, you can apply the sealant. This ensures that the seams are tight and leak-proof.


When installing metal roofing, you’ll need to use specialized tools to cut through the metal and prepare it for installation. Several tools are designed to make this process more efficient, including a metal cutting tool and a drill. A metal cutting tool is essential for making clean cuts without distortion. Some tools can even be attached to a drill.

Shears – Metal roofers need specialized shears for cutting panels on-site. These tools are extremely useful for cutting panels to the correct size and shape. You should also wear protective eye gear while working with these tools. Sharp snips – Good snips are essential for cutting panels, flashing, and trimming. The Home Depot sells a pair of metal snips for about $30, and they’re great for straight cuts.

Screw gun – The screw gun is a 110-volt corded tool with a depth-setting feature and simple design. This prevents the screws from not seating flush with the metal panel. Another advantage of screw guns is their weight and ease of use. They are easy to use and don’t require an extension cord.

Metal snips – A metal snip is an essential tool for cutting metal. The Malco Max2000 snips are highly recommended by metal roofing experts as they’re easy to use and make cutting panels easy and smooth. Most snips are color-coded to indicate which way the metal should be cut. For example, red tin snips are used by right-handed users while green metal snips are good for lefties.

Flashing – Flashing is an important step for installing metal roofing. It seals off joints less than 140 degrees and should extend about a foot on each side of a corner. It should be secured with screws placed one row apart and a butyl tape should be applied before it is fastened. Metal-to-wood screws should be used every twelve to 18 inches. A sealant is also important, and you can use it as a final touch.


Modern metal finishes provide aesthetic appeal while also protecting roof panels from pollution and moisture. Metal finishes also provide rust protection, which is crucial for the longevity of a metal roof system. Rust reduces the waterproofing abilities of a metal roof, affects its aesthetic appeal, and shortens its service life. Newer metal finishes have advanced formulations that can help extend the life of a metal roof.

Two types of coatings are available for metal roofing: polyester resin and silicone-modified polyester. Both options are available in a variety of colors and styles, and they come with varying warranties. Polyester-resin finishes are typically the least expensive, but they usually last only five to seven years. Silicone-modified polyester, on the other hand, provides a higher level of durability. The amount of silicone in the coating determines how durable it is.

Choosing a finish that meets the needs of your home is an important step in determining whether a metal roof will be a long-term investment. The wrong type of finish will leave a faded appearance over time. A high-quality finish will look great and last for many years.

You can coat metal roofs with zinc or aluminum for additional protection. You can apply zinc coatings to metal roofing panels, and zinc-coated metal is most effective for roofs. However, the choice of finish can affect your home’s energy efficiency. A darker-colored roof will not be as energy-efficient as a lighter-colored one. You should also consider the type of fastening system you will use on the roof. Depending on its intended use, the type of fasteners you choose may also affect the durability of the coating.

Finishes of metal roofing can make a big difference in the overall look of your home. Choose from a variety of colors and textures. Stone-coated metal products, for example, have an acrylic coating and stone granules embedded in the material. Stone-coated metal roofs provide a less metallic look. Stand-seam metal roofs, on the other hand, look like long sheets of painted steel. This type of metal roof is not appropriate for every home, but it may suit contemporary or cabin-style homes best.

Time frame

The time frame for installing metal roofing depends on several factors, including the size of the roof and the complexity of the system. Generally, a three-person crew can install a metal roof in two to five hours per square foot. The weather and other factors can also affect the installation time.

While the winter months are not the most ideal for metal roof installation, they are a better time than the summer months. However, if you’re planning on a metal roof installation in winter, you must be patient and work around any weather conditions. Heavy ice, wind, and snow all slow down the installation process.

Another advantage of metal roofs is their low maintenance and longevity. These roofs are highly resistant to fire and impact and can save homeowners money on their insurance policy. Many manufacturers of metal roofing also offer lifetime warranties and transferable warranties to new owners. You can even select the metal that complements your home’s style.

When it comes to measuring the size of your roof, remember that metal roofs come with precut lengths. It is important to measure your roof’s area and slope so that you can determine the material required for the installation. Also, be sure to measure your entire roof’s surface twice. Once you know how much the metal requirement is, you can plan your installation accordingly.

Before beginning the installation process, you should ensure the safety of everyone working on the project. Using protective gear will prevent injuries. Make sure you wear safety goggles when cutting metal roofing and when using power tools. Make sure that you use multiple outlets to provide power for your tools. Some metal roofing companies even provide generators for their installation crews. Lastly, remember to use the proper anchorage for your roof studs.

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Kyle Houck


About the Author

Kyle Houck is the President of Eastern Exteriors, LLC.

Eastern Exteriors, LLC is a family-owned company based in Frederick, Maryland. From new roof installation and roof repairs by professional roofers to premium window installations and expert siding installation, we are a full-service exteriors and contractor roofing company. And, if storms blow your way, we’ll be there to assess and repair the damage quickly.

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