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Posted by McElroy Metal ● Oct 17, 2023 8:00 AM

Can A Metal Roof Be Installed Over My Existing Roof?

If you're wondering whether you can put a metal roof on top of your shingle roof, you’re definitely not the only one. And in most cases, the answer is yes!

ShingleRecover1Replacing shingles can be frustrating and costly. Thankfully, our 138T metal over shingle recover system solves this problem. While the initial cost of metal roofing is higher than shingles, its longevity and low maintenance make it a more cost-effective option in the long run.

Not only can a metal roof be installed without tearing off the existing roof, which is time-consuming and expensive, but it is also a long-lasting product that adds value and improves the appearance of your property. On top of that, metal roofing comes in various styles and colors that can add to the aesthetic appeal of your home.

5V_Charcoal-ResidentialBenefits of Installing a Metal Roof

Aesthetically Pleasing: Prospective homebuyers seek homes with enduring, well-maintained roofs with aesthetically pleasing curb appeal. Whether you're going for a sleek, modern look or a more rustic charm, there is a metal roof for you.

The reflective nature of a metal roof can also give your home a vibrant, polished appearance, especially in the sunlight.

Long Service Life and Lower Utility Expense: One of the key advantages of opting for metal roofing materials lies in their remarkable longevity. According to the Metal Construction Association, when properly installed and maintained, a metal roof can endure for an impressive 50 to 60 years, far outlasting the typical 15 to 20 years expected from asphalt shingles. Additionally, a metal roof can reduce your heating and cooling expenses.

Recyclability and Sustainability: Did you know that metal roofing is a great choice for environmentally conscious people? This is because it is typically made from a high percentage of recycled materials, with a minimum of 25%. Additionally, when it's time for a replacement (which usually happens several decades after installation), the old metal roofing can be 100% recycled!

Increased Property ValueInvesting in a new roof can increase the value of your home. Potential buyers often express concern about a roof's age as they anticipate possible repair or replacement costs in the near future. Replacing a roof can entail weeks of labor, high costs, and significant disruptions to daily life. Most new homeowners prefer to avoid such a strenuous process shortly after moving into their new residence. 

Fire, Hail, and High-Wind Resistant: Impact resistance means weather resistance and is vital as it gauges a material's ability to withstand hail and flying debris. With a Class 4 metal system, your roof stands a better chance of staying intact and leak-free even in the aftermath of severe weather.


Before installing a new metal roof, finding the right Contractor to handle your metal roofing project is key to ensuring its success. Your contractor should follow the steps below:

Installing a Metal Roof Over Shingles

  1. Inspect the Existing Roof – It is important to make sure that the roof deck is in good condition. If there has been any water, fire, or impact damage, it's best to remove the existing shingles and repair/replace the damaged areas of the roof deck. This will ensure that your new metal roof is installed on a stable and secure surface, which will help it last longer and perform better over time.
  2. Prepare the Roof Surface – If you plan to leave your existing shingle roof on, it should be prepared by removing any loose or damaged shingles and smoothing any bumps or rough patches.
  3. Add the Underlayment – After preparing the surface, a layer of underlayment should be added to provide a moisture barrier and a layer of protection between the two roof systems.
  4. Install the Metal Panels – Depending on whether you’ve chosen an exposed fastened or standing seam style panel, you’ll attach the panel through the face of the panel or with a concealed clip underneath the panel. Some metal roofing systems are designed to be installed over the shingles, while others are not. Regardless, following the manufacturer's instructions for all fastener, sealant, and trim applications is important.

To summarize, you have good reasons to install a metal roof over your existing shingle roof. Metal roofs offer long-lasting protection, energy efficiency, and enhanced aesthetics for your home. Plus, they can potentially increase your home's market value, making it a wise and valuable investment.

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Learn everything you need to know about Residential Metal Roofing. Check out our metal roofing resources for inspiration and answers to your questions.

About McElroy Metal

Since 1963, McElroy Metal has served the construction industry with quality products and excellent customer service. The employee-owned components manufacturer is headquartered in Bossier City, La., and has 14 manufacturing facilities across the United States. Quality, service and performance have been the cornerstone of McElroy Metal’s business philosophy and have contributed to the success of the company through the years. As a preferred service provider, these values will continue to be at the forefront of McElroy Metal’s model along with a strong focus on the customer.

Topics: Recover and Retrofit, Residential

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