Corrugated Metal

Corrugated metal fastened directly to the roof deck or framing is one of the two options for using metal in roofing projects. This method and material are also referred to as exposed fastener or screw-down because of the screws and gaskets used to fasten the corrugated metal panels to the roof and each other are visible after installation. This contrasts with raised seam metal panels (the alternative) where fasteners are concealed. Exposed fastener is generally considered the economical option for metal roofing and is recommended for structural, industrial, agricultural, and nonliving residential structures.

Maintenance of Exposed Fastener Roof Systems

Because the metal panels are fastened directly to the roof deck or framing, the material has no room for thermal expansion (the metal contracts and expands in cold and hot conditions, respectively). Over time this leads to the withdrawal of the screws, the degradation of gaskets, the wallowing of perforations, or all. With so many holes across the corrugated metal panels, you risk getting leaks over time or having the panels tear off during a strong storm which can compromise the integrity of your roof structure. Therefore, exposed fastener metal panels are only recommended for carports, garages, barns, silos, front porches, back porches, or other non heated living or workspace structures where thermal expansion is reduced. Still, exposed fastener roof systems require maintenance (every 5-10 years) and annual inspection of fasteners, gaskets, and other components to address the effects of thermal expansion, so consider this when deciding on which roofing material to use.

Pros of Corrugated Metal and Screw-Down Systems

There are benefits to the use of corrugated metal and screw-down roof systems:

Economical
- Corrugated metal panels as wide as 36” are available (wider than raised seam panels), which may reduce labor costs because of faster installation.
- Installation of screw-down systems is less labor-intensive and does not
  require as many specialized skills as in the case of raised seam panels; this
  also reduces costs.
Aesthetic
- Reduces the visibility of oil canning (metal deformation because of thermal expansion) because of the corrugated surface of the material.
- Some people prefer the more traditional look of corrugated metal and exposed fasteners, especially for agricultural buildings in rural areas.
Durability
- An exposed fastener roof can last 20 to 30 years with proper maintenance and yearly inspections.

The importance of hiring a professional roofing contractor

Although installing or replacing your roof with corrugated metal and exposed fasteners may be considered a DIY task for some because of how straightforward it seems, it is best to leave it in the hands of the professionals to ensure your decking, framing, and other roof components are protected. Incorrect installation of fasteners (under-driving, over-driving, angling them) may lead to loose screws and damaged parts that risk leaks and weaken the roof structure. Also, consider that exposed fastener metal roof systems are suitable for roofs with a minimum slope of 3/12, allowing water to shed to avoid pooling. Professional roofing contractors consider these aspects during installations to ensure roofing systems perform as expected.

Contact us, and we will be happy to discuss your roofing project and provide you with the best options.

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Frequently asked questions about corrugated metal roofs

What is metal roofing made of?

Metal roofs can be made of various materials such as steel, aluminum, or copper. Each material has its own unique advantages and characteristics.

How long do metal roofs typically last?

Metal roofs are known for their durability and longevity. On average, a properly installed metal roof can last anywhere from 40 to 70 years or even longer, depending on the material and maintenance.

Is a metal roof more expensive than traditional roofing materials?

While the upfront cost of a metal roof may be higher compared to traditional roofing materials, the long-term benefits and lifespan make it a cost-effective investment over time.

Does a metal roof make my home hotter in the summer?

No, in fact, metal roofs are designed to reflect the sun's heat and reduce cooling costs. They have coatings and insulation options that help keep the interior of the building cooler.

Can I install a metal roof over an existing roof?

Yes, in many cases, metal roofs can be installed over existing roofs. However, it's important to consult with a professional roofer to ensure the structural integrity and suitability of your specific situation.

Are metal roofs noisy during rain or hailstorms?

No, metal roofs are typically not significantly louder during rainfall or hailstorms. They are installed with solid underlayment, insulation, and attic space, which help reduce noise levels.

Is metal roofing prone to rusting?

Modern metal roofs are designed to be corrosion-resistant through protective coatings and galvanization. As long as the roof is well-maintained and the proper coatings are applied, rusting is unlikely.

Will a metal roof attract lightning strikes?

Metal roofs do not increase the likelihood of a lightning strike. In fact, they can be safer than other roofing materials as they are non-combustible and can help dissipate the electric charge.

Can I walk on a metal roof without damaging it?

Metal roofs are durable and can withstand some foot traffic. However, it is recommended to avoid unnecessary walking on the roof and contact a local professional roofer if you need to access it for maintenance or repairs.

Are there different styles and colors available for metal roofing?

Absolutely! Metal roofs come in a wide range of styles, colors, and finishes. They can mimic the appearance of traditional roofs such as shingles, tiles, or even cedar shakes, providing aesthetic versatility. Call Providence Roofing today for a free estimate at 704 883-6052

100%

CUSTOMER

SATISFACTION

We strive to ensure that you will be 100% satisfied with the Roof Repair, Roof Replacement, or Gutter Installation services you receive from Providence Roofing, In other words, customer satisfaction is our top priority. However, don’t take our word for it. We prefer to let our Google Reviews speak for themselves:

Providence Roofing was a pleasure to do business with from the moment I began speaking with them. They were excellent at communicating their findings on the roof and keeping me updated on installation dates and progress. Mr. Hull provided an honest assessment and walked through how the job would go. They were punctual and cleaned up prior to leaving. I would highly recommend them for any roofing or gutter work needed in the Statesville area.
Brian Bluhm
I could not have been more satisfied with my services from Providence Roofing. Thomas responded to my initial call in a very timely manner, he was professional , knowledgeable, and courteous. I am thrilled to have my new roof before winter! This roofing crew worked hard. They were respectful of the property and neighborhood during the job and when the job was done, they left NO trace that they had been there , except for the new roof of course! Thomas makes himself very available and they do quality work at a good price point. I recommend Providence Roofing without hesitation!
Colleen Tarantino
Ashley and his team were great from start to finish. They arrived on time and worked hard and finished just in time to beat out an incoming storm so that my new roof got to be tested right away. (It held up just great)I found two small things the next day and they came back quickly to take care of them. Ashley was very personable and in fact that is what won them the business over other competitors who were not so. He seemed genuinely interested in me as a person and my project. Others were only there to make the sale and nothing more. I highly recommend Providence Roofing.
Coach West