Thinking about adding a metal roof to your home? You might be wondering about the pros and cons of putting a metal roof over shingles. Well, you’re in luck! In this article, we will explore the advantages and disadvantages of this roofing option, giving you all the information you need to make an informed decision. From increased durability to potential weight concerns, we’ve got you covered. So, let’s dive in and discover the ins and outs of putting a metal roof over shingles!
Pros of Putting Metal Roof Over Shingles
Cost-effective Option
One of the biggest advantages of putting a metal roof over shingles is the cost-effectiveness of this option. By choosing to install a metal roof directly over your existing shingles, you can save significant money on roof removal costs. This means you don’t have to spend additional funds on tearing off and disposing of the old shingles. Additionally, the labor costs associated with installing a metal roof over shingles are generally lower compared to a full roof replacement, as it eliminates the need for tear-off and reduces the overall installation time.
Easy Installation
Installing a metal roof over shingles offers a straightforward and hassle-free process. Since there’s no need for a roof tear-off, the installation becomes quicker and more convenient. Without the time-consuming task of removing the old shingles, you can save both effort and time. The straightforward nature of installing a metal roof over shingles makes it a feasible option for homeowners who are looking for a quick and efficient project completion.
Added Durability
Another significant advantage of opting for a metal roof over shingles is the added durability it provides. By installing a metal roof over your existing shingles, you create an extra layer of protection for your home. Metal roofs are known for their resistance against harsh weather conditions, including heavy rain, snow, and strong winds. This enhanced durability ensures that your roof can withstand the elements and provides long-lasting protection for your home. Moreover, the metal roof acts as a shield for the underlying shingles, extending their lifespan and reducing the need for premature replacement.
Improved Energy Efficiency
Metal roofs have excellent energy-efficient properties, making them an attractive option for homeowners. By choosing to put a metal roof over shingles, you can benefit from these energy-saving advantages. Metal roofs are reflective, which means they can reflect a significant amount of the sun’s rays, reducing heat absorption and keeping your home cooler in hot climates. This reflective property helps to lower cooling costs in the summer, ultimately saving you money on energy bills. Additionally, metal roofs also offer reduced heat transfer, providing better insulation for your home during colder months.
Enhanced Aesthetics
Installing a metal roof over shingles can greatly enhance the overall aesthetics of your home. Metal roofs have a modern and stylish look that can significantly improve the curb appeal of your property. With a wide range of colors and finishes available, you can choose a metal roof that complements your home’s style and architecture. Moreover, metal roofs can be designed to mimic the appearance of other roofing materials, such as slate or tile, giving you the opportunity to achieve the desired aesthetic while enjoying the benefits of a durable and long-lasting metal roof.
Cons of Putting Metal Roof Over Shingles
Risk of Trapped Moisture
One potential drawback of putting a metal roof over shingles is the risk of trapped moisture. Moisture can become trapped between the old shingles and the new metal roof, creating an environment conducive to mold and mildew growth. The moisture can also lead to rotting of the underlying shingles and potential structural damage if not properly addressed. It is crucial to ensure proper ventilation and moisture control when considering this option to mitigate the risk of trapped moisture.
Potential Weight Issues
When adding a metal roof over shingles, it’s essential to consider the potential weight issues that may arise. Metal roofs tend to be heavier than traditional shingle roofs, and placing this additional weight on the existing roof structure can cause problems. The excessive load can put strain on the roof and potentially lead to structural issues if the underlying structure is not capable of supporting the added weight. Depending on the condition and strength of your roof structure, you may need to reinforce it to handle the increased load, which can add to the overall expense of the project.
Voided Manufacturer Warranty
Installing a metal roof over shingles can also void your existing manufacturer warranty for the shingles. Most shingle manufacturers do not endorse or warrant installing a metal roof over their products. If you have an active warranty on your shingles, transitioning to a metal roof may nullify this coverage. It’s essential to check the terms and conditions of your shingle warranty before deciding to install a metal roof over them.
Additional Expenses
Although installing a metal roof over shingles can be cost-effective compared to a full roof replacement, there are still additional expenses to consider. Some of these expenses may include the cost of structural reinforcement, which may be necessary to support the extra weight of the metal roof. Additionally, potential repairs or modifications to the existing roof structure may also incur additional costs. While still a more economical option compared to a complete tear-off, it’s vital to factor in these potential expenses when considering installing a metal roof over shingles.
Limited Roofing Options
Opting for a metal roof over shingles may limit your roofing options. Some roofing materials may not be compatible with metal roofs, restricting your choices when it comes to selecting the ideal material for your home. Additionally, certain roof styles may not be suitable for installing a metal roof over shingles. Consequently, homeowners looking for specific roofing materials or styles may find their options limited when choosing to install a metal roof over shingles.
In conclusion, putting a metal roof over shingles offers several advantages, such as cost-effectiveness, easy installation, added durability, improved energy efficiency, and enhanced aesthetics. However, it’s important to consider the potential drawbacks, including the risk of trapped moisture, potential weight issues, voided manufacturer warranties, additional expenses, and limited roofing options. By carefully evaluating these pros and cons, homeowners can make an informed decision about whether installing a metal roof over shingles is the right choice for their home. It is always advisable to consult with a professional roofing contractor to assess the suitability of this option and ensure a successful and long-lasting installation.
