Metal Roofing: Can You Install Over Existing Shingles?

Homeowners, are you tired of the constant maintenance on your shingle roof? Or maybe you need a new roof and aren't sure if traditional shingles are the right choice. If that sounds familiar, exploring other options, such as metal roofing, is worth exploring. Not only is it visually stunning, but it's also more durable than shingles, making it a smart investment for any commercial property or residential owner.

But what about installing metal roofing over your current shingle roof? Have no fear - it's absolutely possible! While it may seem like a daunting process, a trusted roofing company can make it easy and stress-free. The blog below will walk you through the advantages of choosing metal over shingles and how to install it over existing shingles. We'll also share critical factors to ensure a successful installation and avoid any mishaps along the way.

It's time to bid farewell to your old, high-maintenance shingle roof and say hello to a stunning, long-lasting, reliable metal roofing system.

Can You Install Metal Roofs Over Shingles?

Have you considered upgrading your roof but don't want to go through the hassle of removing shingles? Well, we have good news for you: installing a metal roof over shingles is possible in most areas! However, before making any decisions, it's important to check with your metal roofing contractors about the local building department, as rules may vary regarding the number of layers of shingles permitted.

According to building codes, complete and separate roofing systems like standing-seam metal panel systems can be installed over existing roofing without removing the old coverings. However, remember that the installation process can be tricky and may require help from a professional roofer. While it can save you time and money, it's crucial to know the advantages and disadvantages of this method. Read on to learn more about what to expect during the installation process and how to ensure your metal roof lasts for years.

Advantages of Metal Roofs: Why They Outshine Shingles?

Though shingles are a popular roofing material, metal roofs have several advantages, making them a superior choice in many cases. Let's find out!

1. Longevity and Curb Appeal: Metal roofs are one of the most popular commercial roofing systems among homeowners for their reputation for longevity and for enhancing the curb appeal of homes.

2. Extended Lifespan: Metal roofs outlast shingles, boasting an impressive lifespan of 40-70 years, depending on the material.

3. Weather Resistant: Metal roofs can withstand various weather conditions, keeping homes safe, comfortable, and dry. They efficiently drain rainwater, facilitate easy snow melting, and can uphold wind gusts up to 140 mph.

4. Fire and Hail Resistant: Many metal roofs are designed to resist fire, including lightning strikes and wildfires, and can withstand hail storms without damage.

5. Versatile Colors and Finishes: Metal roofs offer various colors and finishes, allowing homeowners to choose appearances that resemble natural cedar shakes or stone.

6. Energy Efficiency: Metal roofs improve home energy efficiency by reflecting solar radiant heat, potentially reducing cooling costs by 10-25%.

7. Cost and Labor Savings: Installing metal roofing over shingles saves on labor costs by eliminating the need to remove shingles and preventing shingles from ending up in landfills.

8. Enhanced Insulation: Metal roofs installed over shingles provide an extra insulation layer for homes.

9. Durability and Cost Savings: Metal roofs are highly durable, potentially lasting a lifetime with minimal to no repairs. This durability translates to long-term cost savings compared to shingles that require frequent replacement.

10. Stylish and Valuable: Metal roofs have become a must-have for homeowners, as they enhance the look of homes while increasing their lasting value.

11. Energy Efficient and Cooling: Metal roofs keep homes cooler and are energy efficient.

12. Lightweight: Metal roofs are lightweight compared to other roofing materials like shingles.

13. Excellent Shedding Capability: Metal roofs allow maximum shedding of rain and snow due to interlocking panels and slippery surfaces.

14. Wind Resistant: Metal roofs have excellent wind resistance due to the interlocking nature of the panels.

15. Environmentally Friendly: Metal roofs are specifically made of recycled materials and can be further reclaimed at the end of their lifespan, making them environmentally friendly.

16. Adaptable Design: Metal roofs can fit into various architectural designs, offering flexibility in style and application.

Disadvantages of Metal Roofs: Explore The Flip Side

Do you think that the advantages of metal roofing will outweigh the disadvantages? Despite metal roofing's numerous benefits, there prevail some potential downsides to consider:

1. Higher Cost: Metal roofs can be significantly more expensive than shingles, making them less affordable for many homeowners. The initial installation cost can be a deterrent despite their durability and long-term value.

2. Noise Amplification: While metal roofs provide excellent protection against the elements, they can amplify the sound of rain and hail, resulting in a noisy interior. Adding a layer of soundproof insulation can mitigate the issue but adds to the overall cost.

With a thorough knowledge of the pros and cons of metal roofs, homeowners can make informed decisions about whether to install one in their homes. If you're interested in learning more about installing a metal roof, read further to discover all the aspects that make metal roofing a superior and sustainable choice for a roofing solution.

Essential Checks for Installing Metal Roofing Over Shingles

Before installing metal roofing over shingles, it's crucial to remember specific essential checks to ensure a successful and safe installation process. Read further to learn what you should look out for and the precautions you should take with the underlying shingle material.

1. Address Existing Roof Issues: Before installing a metal roof over shingles, it's crucial to address existing roof leaks and replace rotten rafters or sheeting. These issues can compromise the integrity of the new installation.

2. Manufacturer Specifications and Warranty: Following the manufacturer's specifications is key to ensuring a successful installation. While warranties offer protection, it's important to understand the limitations and consider purchasing the best product within your budget.

3. Fastener Application: When installing the metal roof, using screws as specified by the manufacturer is essential. Screws are preferred over nails for better performance. Proper spacing between screws, typically 24 to 30 inches, and skipping every other rib helps minimize the number of holes in the roof.

4. Attention to Trim: The trim plays a vital role in the aesthetics and functionality of the roof. Wrapping all edges with flashing enhances the appearance and protects against rain, snow, and wind. Consider adding ice guards for additional protection, even if you don't have gutters.

5. Safety Precautions: Prioritize safety during any Nashville property's roof installation process. Wearing gloves helps prevent cuts on your hands. Avoid working on the roof during windy conditions, and position the steel downwind to avoid the risk of being knocked over by gusts of wind.

6. Professional Inspection: Engage a professional roofing company to inspect the existing plywood the shingles attach to. A Nashville roofer experienced in commercial roofing projects can assess if the wood can support the added layer of a metal roof and determine if screws can be used for installation.

7. Compliance with Local Regulations: Before proceeding with the installation, ensure that installing two layers of roofing materials is permitted in your residential area. Some regions may have specific regulations and restrictions that need to be followed.

8. Resolving Existing Issues: It's crucial to address any leaks or other issues with the existing shingles before installing the metal roof. Professional assistance can help assess the situation and resolve problems, ensuring a solid foundation for the new roof.

How do Professionals Help Install Metal Roofing Over Shingles?

If you're considering installing a metal roof over shingles, it's vital to understand the crucial steps involved to ensure the job is done correctly. While many homeowners opt for a DIY approach, choosing commercial roofing contractors to handle the job is often better to avoid costly mistakes or accidents.

One of the essential steps in installing metal roofing over shingles is adding a completely new underlayment to the existing shingles. This is important in preventing water leakage and creating a buffer between the metal roof and the shingles. Additionally, without an underlayment, the shingle granules could wear out over time due to the expansion and contraction of the metal.

Another crucial step is using purlins or battens to create a flat surface for installers to lay the metal roof panels. By screwing the purlins to the roof deck, the metal is added onto them, creating a much stronger roof. This approach also creates an air gap between the metal roof and the shingles. This gap is a buffer to protect the underlying shingles from damage during heat buildup.

While installing a metal roof over shingles may seem straightforward, having the right knowledge and expertise is important to ensure a safe and efficient installation. By hiring professionals to handle the installation, you'll have peace of mind knowing the job is done correctly and efficiently.

Trust the Experts for Durable Metal Roofing Solutions

If you want to upgrade your roof and give your home a new look, consider a metal roof. With the ability to install metal roofing over shingles, it's an affordable and efficient solution that can provide long-lasting benefits.

However, installing metal roofing is not a job for the inexperienced. To do the job correctly, it requires expertise, specialized materials, and the right installation techniques. Trust an expert roofing company with years of experience in the metal roofing industry that can custom-make every panel for your project.

With unmatched metal roofing services, these roofers guarantee a roof that will last you a lifetime. Whether you need a new or old roof replaced, the experts can handle all your metal roofing needs. Contact a professional Nashville roofing team today to schedule an appointment, get free estimates, and know better about metal roof replacement services.