What Are Corrugated Roofing Sheets & How to Install Them

red and gray corrugated roofing shingles

Are you preparing to replace the roof on your property? From tiles to asphalt shingles and more, there is a wide range of roofing materials that you can choose from. However, you understandably want to find the most affordable, durable and stylish option available for your commercial or residential property. Perhaps you even want to install the material yourself to save money on your improvement project. With a closer look at what corrugated roofing sheets are, you will see that this is an ideal material to add to your property.

What Are Corrugated Roofing Sheets?

Corrugated roofing is a special type of roof that features overlapping sheets spread across the surface of the roof. These sheets are commonly made out of metal, such as iron, steel or aluminum. They can also be made out of fiberglass or PVC as a lightweight alternative. Typically, these sheets are not flat. Instead, they have an undulating or ridged and grooved appearance.

There are several benefits associated with installing corrugated roofing sheets on your home or business property. For example, the materials are lightweight yet affordable and durable. Some are even designed to hold up well in high-wind situations, such as in tropical storms and hurricanes.

They have easy maintenance requirements and a naturally long life. Some panels have a lifespan of more than 100 years. More than that, they have a unique style that works well with traditional styles of buildings as well as modern or contemporary designs. This makes them well-suited for a wide range of properties.

gray iron corrugated roof

How to Install Corrugated Roofing Sheets

While corrugated roofing sheets are affordable in comparison to many other options, you may be interested in saving more money on your roofing project by installing your new roof on your own. In comparison to other roofing materials, this is a rather easy type of material to work with. However, you will need specialized tools and a few sets of helping hands to complete the project efficiently. Ensure that all labor and equipment are on hand before you begin the project.

#1. Choose Your Materials

The first step to take if you want to install a corrugated roof on your property is to research the pros and cons of different material options. For example, metal is strong and durable, and it will not rot, rust or burn. However, it can be damaged in hail storms, and it is a more expensive option to consider. Another corrugated option is PVC or fiberglass. This material is more affordable, but it is less durable.

Some people also notice that it creates more noise inside the building during rainstorms. Order all of the materials you need to complete the entire project before you begin the work. By doing so, you will not have unexpected delays because of materials or supplies issues.

#2. Gather and Cut Your Materials

Most corrugated roofing sheets are sold in panels measuring 32 feet long. The panels need to be installed in overlapping fashion, and approximately 18 inches is needed for this overlap. When cutting panels to conform to roof dimensions, the fastest and easiest cutting equipment to use is an angle grinder. Other equipment options are a circular saw, a nibbler and tin snips. Remember to wear safety equipment, such as goggles and gloves, when using these machines.

#3. Measure for and Drill Holes

Before placing the sheets on the roof, pre-drill the holes for the fasteners. Holes for the fasteners should be less than one-quarter inch wide. In addition, the holes should be made approximately every six to eight inches. This includes all ends and sides of the panels. By taking this step, the panels can remain secure and protective in even severe weather situations.

two workers installing a roof

#4. Remove the Existing Roof Material

When installing corrugated roofing panels on an existing structure, the current roof material needs to be removed. This will leave the building vulnerable to pest infestation, weather damage and more. Therefore, make plans to complete the project when good weather conditions are present. Ideally, several days in a row can be allocated for the completion of the project. Also, a few sets of helping hands are helpful to complete the work in a timely manner.

#5. Install Your Roof Panels

The next step in the installation project is to install your corrugated roofing panels on the building. Purlins are the thinner slats of wood that intersect the length of the trusses. Place the corrugated roofing panels directly onto the purlins. Begin on the far left or right-hand side of the roof, and add panels across the length of the roof. Remember that the corrugated ridges on the panels should run up and down the roof rather than across it. This will prevent water from penetrating into the structure.

#6. Seal the Panels

Before you screw the panels into the purlins, seal the panels with a water-resistant sealant. The sealant should be suitable for the type of panels you have selected. Install a wood or plastic panel strip at the end of each panel for weatherization.

#7. Affix the Panels with Screws

The final step in the installation process involves affixing the roof panels to the purlins. Use the appropriate size of screws for the holes you pre-drilled. These screws need a polycarbonate washer for the best results. Work your way across the entire surface of the roof, and ensure that each hole receives a drill and washer. After this process is complete, install a ridge cap at the top of the roof. This is an aesthetic feature, and it also prevents water from flowing under the panels at the apex.

Summing It Up

Corrugated roofing panels are an excellent material choice for residential and commercial roofs alike. While there are several panel types to choose from, they all are easy to install. By following these simple steps, you can soon enjoy the improved curb appeal and added protection that your new roof provides. Take time to learn more about material options today as a first step.

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