If you're considering a roof upgrade and wondering, can you put a metal roof over shingles, you're not alone. Many homeowners in Westchester County, NY, choose this cost-effective and time-saving method. This blog delves into the process, benefits, installation, and cost considerations when opting for a metal roof over shingles. As an experienced roofing contractor in Westchester County, NY, On Time Roofing offers insights to help you make the best decision for your home.
Is It Okay To Install Metal Roof Over Shingles
If your roof is aging and showing signs of wear but still structurally sound, you may be wondering whether you can install a metal roof over shingles. The good news is, yes, you can install a metal roof over shingles, and it's a common practice for homeowners in Westchester County, NY, looking to save on both time and cost. Instead of tearing off the old shingles, which can be labor-intensive and expensive, many homeowners opt for placing a metal roof directly over the existing shingles. This method is not only more affordable but also offers additional benefits, such as improved energy efficiency and increased durability. In this article, we’ll discuss the pros and cons of metal roofing, provide a step-by-step guide for the installation process, and address some frequently asked questions related to metal roofing over existing shingles.
Benefits of Installing a Metal Roof Over Shingles
Cost Savings
One of the most significant advantages of installing a metal roof over shingles is the cost savings. Roof removal is labor-intensive and costly, often adding up to thousands of dollars. When you install a metal roof over shingles, you can skip this step, saving both time and money. The installation process becomes faster and more affordable, and you'll avoid paying for the disposal of old roofing materials. Although the upfront cost of metal roofing may still be higher than asphalt shingles, the long-term savings from fewer repairs and lower energy bills make it a wise investment.
Energy Efficiency
Another notable benefit of metal roofing over shingles is energy efficiency. Metal roofs are excellent at reflecting solar radiant heat, which reduces the amount of heat absorbed by your home. This can significantly lower your cooling costs during the hot summer months. In Westchester County, NY, where summer temperatures can soar, installing a metal roof can keep your home cooler and more comfortable without the need for excessive air conditioning. This means lower energy bills and a smaller carbon footprint, making your home more environmentally friendly.
Durability and Longevity
Metal roofs are known for their incredible durability. While asphalt shingles typically last 15 to 30 years, metal roofs can last anywhere from 40 to 70 years, depending on the material used. When you install metal roofing over shingles, you are essentially upgrading your roof to withstand extreme weather conditions, such as heavy snow, high winds, and hail. Additionally, metal roofs are fire-resistant, offering an extra layer of protection for your home. Given the often unpredictable weather in Westchester County, NY, investing in a metal roof means you're ensuring your home is well-protected for decades to come.
Environmental Benefits
Choosing a metal roof is also an environmentally responsible decision. Metal roofing is made from recyclable materials, and when it's time to replace the roof, the metal can be reused, preventing it from ending up in a landfill. In contrast, asphalt shingles contribute to significant landfill waste. By choosing to install metal roofing over shingles, you're not only investing in the longevity of your home but also reducing your environmental impact.
Step-by-Step Guide to Installing Metal Roofing Over Shingles
1. Roof Inspection
Before installation begins, the existing roof must be inspected. A professional Roofing Contractor in Westchester County, like On Time Roofing, will assess the condition of the old shingles. This inspection is essential to ensure that the underlying structure is strong enough to support the additional weight of the metal roof. If the shingles are damaged or have excessive wear, they may need to be reinforced or replaced before proceeding.
2. Preparing the Roof
Once the inspection is complete, the next step is preparing the roof for the new metal panels. In some cases, it might be necessary to install a layer of underlayment over the shingles to create a smoother surface. Underlayment helps to reduce noise and adds an extra layer of protection against moisture. Additionally, the roof may need strapping or battens, which are wooden strips installed vertically across the shingles. These battens help to create an air gap between the shingles and the metal roof, improving ventilation and preventing moisture buildup that could lead to mold and mildew growth.
3. Installing the Metal Panels
The actual installation of the metal panels begins after the roof has been properly prepared. The panels are fastened to the battens or strapping using screws or nails, depending on the type of metal roof chosen. The metal roofing panels overlap at the seams, creating a strong, waterproof barrier. This step is crucial because the quality of the installation directly impacts the roof's longevity and performance. Each panel should be installed securely to avoid leaks or gaps.
4. Adding Ventilation
Proper ventilation is key to preventing issues such as trapped moisture, mold, and heat buildup. Installing ventilation at the ridge of the roof ensures that hot air and moisture can escape from the attic, helping to maintain a consistent indoor temperature. This also reduces the risk of damage to the roof structure and prolongs the life of the roofing materials.
5. Final Inspection
Once the installation is complete, a thorough inspection is performed to ensure the metal roof is securely in place and all seams, edges, and flashing are properly sealed. This ensures that the roof is both watertight and durable. A quality roofing contractor will also provide a warranty on their work, ensuring that you can enjoy peace of mind for years to come.
For professional roofing services in Westchester County, NY, On Time Roofing offers expert advice and exceptional installation services. Reach out to us for assistance with metal roof installation.
Metal Roof vs Asphalt Shingles: Which is Better for Your Home?
Longevity
Metal roofs have a significantly longer lifespan than asphalt shingles. While shingles may last up to 30 years, a well-installed metal roof can last 40 to 70 years, providing excellent value for money in the long term.
Cost
While the initial cost of metal roofing is higher than asphalt shingles, metal roofs pay off in the long term. They require less maintenance, are more energy-efficient, and are much more durable. Asphalt shingles, while cheaper upfront, need frequent repairs and replacements, making them less cost-effective over time.
Appearance
Metal roofs are available in a variety of styles and colors, offering more options to homeowners than asphalt shingles. Whether you want a sleek, modern look or something that mimics traditional roofing styles, metal roofs provide a versatile aesthetic.
Maintenance
Metal roofs require minimal maintenance, and unlike asphalt shingles, they are resistant to common issues like rot, moss growth, and insect infestations. Asphalt shingles, on the other hand, may need regular repairs, especially in climates with extreme weather.
How Much Does It Cost to Install a Metal Roof Over Shingles?
The metal roof cost over shingles can vary depending on factors such as roof size, material choice, and the complexity of the installation. On average, homeowners can expect to pay between $5 and $12 per square foot for metal roof installation. This includes labor and materials.
Factors that affect the cost:
- Material Type: Standing seam metal roofs are typically more expensive than corrugated options.
- Roof Size: Larger roofs require more materials and labor, increasing the overall cost.
- Roof Complexity: Steeper slopes or more intricate designs can also raise the price.
For an accurate estimate, it’s essential to contact a professional Roofing Company in Westchester County, like On Time Roofing, to get a personalized quote.
Do Metal Roofs Over Shingles Affect Home Insurance or Warranty?
When opting for metal roofing over shingles, it’s important to check with your home insurance provider to ensure that your policy remains valid. In most cases, replacing shingles with metal does not affect insurance rates, but it’s always a good idea to inform your insurance company about the changes to your roof.
Additionally, some manufacturers offer warranties for their metal roofing materials, but it's important to note that certain warranties may be voided if the roof is installed incorrectly. To avoid any issues, always hire a certified metal roofing contractor to handle the installation.
Frequently Asked Questions
- Can you install a metal roof over old shingles?
Yes, it is possible to install a metal roof over existing shingles, provided the shingles are in good condition and the roof structure is stable. - How long does a metal roof last compared to asphalt shingles?
Metal roofs can last 40 to 70 years, while asphalt shingles typically last 15 to 30 years. - Does installing a metal roof save on energy costs?
Yes, metal roofs are reflective, which reduces heat absorption, leading to lower cooling costs in the summer. - Is the cost of installing a metal roof worth it?
While metal roofs have a higher upfront cost, they offer long-term savings due to their durability, energy efficiency, and low maintenance requirements. - How much does it cost to install a metal roof over shingles?
The cost typically ranges from $5 to $12 per square foot, depending on the material, roof size, and installation complexity.

