In the past, metal roofing was a standard for barns, factories, commercial buildings, and homes. Once asphalt was invented, things changed. Now trends have come full circle once again as people remember that metal is a durable and affordable roofing material.
But, if you’re going to have a metal roof on your home, you have several choices. Here is what you need to know about corrugated metal roofs vs. standing seam roofs for your next roof replacement or remodeling project.
Corrugated Metal Roof
Corrugated metal panels, which look like waves or ribs, were invented in the early 1800s. At the time, these were made from hot-dipped galvanized iron, but different materials have been used over the years. Most people picture the repeating wave design of these panels.
Standing Seam Roofs
Standing seam roofs have more sleek lines. Instead of the “waves” that you see on a corrugated metal roof, these systems have raised seams that rise up from the flat surface.
Differences Between Corrugated Metal and Standing Seam Roofs
Appearances aside, there are several differences between corrugated metal and standing seam roofs. You’ll want to consider the pros and cons of each type of roof as you plan your next residential project.
Materials
Today, the most common material used in metal roofs is galvanized steel, but corrugated and standing seam roofs might use different grades. For example, corrugated metal roofs are often made from G-60, and most standing seam roofs are made from G-90 grade steel.
In some cases, either roof might be manufactured from steel that is coated with an aluminum-zinc alloy. The material is a trademarked product called Galvalume, which can have a longer life expectancy than standard materials.
Applications
In the past, corrugated roofs were mainly used for commercial applications. But, more and more people have begun to choose this type of roof, which is available in many colors, for their home. Likewise, standing seam roofing systems are popular in both residential and commercial applications. They are available in a variety of colors and designs.
Installation
One of the biggest differences between corrugated metal and standing seam roofs is in the installation. The overlapping wavy metal sheets of a corrugated metal roof are fastened directly to the roof sheathing, with visible fasteners on the surface. With a standing seam roof, the seams are above the surface, and the screws are concealed and protected by the roofing material.
What many people don’t realize is that most corrugated metal roofs can be installed directed over a shingled roof – even during the winter. Installing a standing seam roof in this manner is much more difficult.
Climate Considerations
Fortunately, both metal roofing systems are incredibly durable in harsh weather conditions. Either type of roof can handle winds up to 110 mph, and some offer greater protection. Since the fasteners are exposed with a corrugated metal roof, these systems have slightly more exposure to damage.
Metal roofs are excellent at withstanding damage from falling objects like tree limbs and can handle the weight of heavy snow or the pounding from a hail storm. They are also fireproof and will likely save you money on homeowners’ insurance premiums.
You can save additional money on your monthly energy bills with lower AC costs in the warmer months.
Maintenance
Both corrugated and standing seam roofs require little maintenance and will last much longer than a conventional asphalt roof. The only thing you need to do to maintain one of these roofs is to keep it clean of debris. If you have a corrugated metal roof, it’s a good idea to have someone tighten the fasteners about every ten years.
Galvanized steel roofs generally carry 50-year warranties. Even if you don’t stay in your home this long, having this type of roof will increase your property’s value.
While a metal roof is going to cost more upfront than a traditional roof, it’s going to last much longer. Your two most common choices are corrugated metal or standing seam. If you’d like like to discuss your options further or get a quote for your next project, give us a call. Excel Metal Roofing serves clients throughout the Versailles area.
