How To Install Metal Roofing?

How To Install Metal Roofing

Metal roofing has long been a standard in the roofing industry. Drive through any American neighborhood, and you most certainly come across a metal roof every few blocks. This is primarily due to their durability and lower maintenance costs.

Not all metal roofing installations are the same. Metal Roofs are available in different materials: aluminum, steel, corrugated metal, tin, and copper. Metal roofs come in different styles and designs. There are some that are not the most aesthetically pleasing and can be particularly noisy during thunderstorms, but they won’t need to be replaced anytime soon.

As there are different metal roofing options, it is critical to do some research before deciding which metal panels to use at your home. Whether starting a new roofing project or considering an upgrade, this guide will help you learn everything about metal roofing and its installation!

Steps By Step Guide To Metal Roofing Installation


Step 1: Take Accurate Measurements

Before beginning the installation work, measure the area and slope of the roof to determine the supplies that will be needed. Once you have measured the total area, add a 10-15% contingency margin to the total materials to account for waste and human error.

It’s important that you take accurate measurements of the roof. Don’t forget to account for skylights, chimneys, curbs, and other penetrating features. To ensure greater accuracy, double-check the initial measurements.

You should also order all of the necessary materials ahead of time to avoid any delays. It will also ensure that you have enough materials and metal shingles on hand to complete the installation work efficiently.

Step 2: Remove the old roofing and make all the necessary repairs

Remove the old roof. Prepare a bin or trailer to collect all original roof debris and transport it to a nearby landfill or recycling center. Remove all the nails so that you can work on a clean, smooth surface. Also make sure that you repair any damage to the existing roofing frame or plywood sheets before installing your new metal roof. This ensures that the surface on which the metal roofs are installed is strong and long-lasting. 

Step 3: Insulate your Home

Insulation keeps heat in and water out of your house. In most cases, one layer of insulation is enough to protect your home. However, if you live in a colder climate area, you may want to add a second layer of insulation before installing your metal roof.

Once you have insulated your home, add eave flashing, drip edges, and closure strips to complete the look. Next, cover the entire perimeter of your roof to protect your home. You can use 14-inch galvanized roofing nails to secure the flashing and drip edges.

Cover the drip-top edges with sealant tape and a closure strip. To avoid bare spots and misalignment, ensure that everything is straight and evenly applied during your steel roof installation.

Step 4: Install Metal Shingles

Before installing metal roofing panels or shingles, measure and cut them to the size required to cover the roofing area. If the panels or shingles are not of the correct size, there can be problems like water leakages.

When installing panels on your roof, start from the eaves and work your way up. Align each metal shingle so that it overlaps the bottom metal panel’s edging by 12 to 34 inches.

Each type of metal roofing sheet has instructions on where and how far apart the screws should be placed, so read them carefully and follow them. Avoid over-tightening the metal roofing screws as well.

Apply 100 percent silicone sealant along the underside of the next panel’s short edge after installing the metal roof panel. The sharp edge of the new panel should overlap the longer edge of the previously installed metal roof shingle when installing the next panel. As you work your way up the roof’s surface, you can install each metal roof in the same way.

Step 5: Install Roof Ventilation

If you installed metal roof panels with vented closure strips, add roof vents afterward. To ensure that it covers and laps both sides of your roof’s ridge, repeat the steps for measuring and cutting the vents. 

Also, when installing roof vents, follow the manufacturer’s instructions to ensure that the correct vents are securely attached to the roof. After installation, there should be no gaps or open spaces between the roof vent and the panel ridges. 

Use wooden roofing screws and sealant tape along the entire length of the vent to ensure proper steel roof installation along the ridge.

Step 6: Install Metal Roofing Flashing

The flashing is the final step in the installation of a metal roof. Flashing is the metal trim that is used to cover all of the joints where the metal sheet panels on your roof meet. Follow the manufacturer’s instructions for attaching and securing the flashing to your roof joints. The flashing will provide an additional layer of protection against the elements and complete the look of your metal roof installation once installed.

We hope that the information provided above assists you in properly installing metal roofs on your property; however, if you require the services of a professional roofer, please contact our experts at Reflective Coatings LLC for quality and affordable roofing services.

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