One of the main reasons people install metal roofs is because they are resistant to mold and rot. But if moisture can get between your metal roof and existing asphalt shingles, that great benefit is nonexistent. Moisture between roofing materials will continue to cause mold, mildew and rot. For more than 30 years, the Bill Ragan Roofing team has provided honest and unbiased roofing information to homeowners like you.
Therefore, I want to help you understand the issues associated with placing a metal roof over a tiled roof. Are you curious to know why this building material has conquered so many owners? See the full list of advantages and disadvantages of metal roofing below. Weigh them carefully and you'll discover that you, too, could benefit from this reliable roof. Thanks to the reflective properties of this type of roof, the money invested in installing a metal roof can be recovered thanks to savings in monthly cooling and heating costs.
According to the Metal Roofing Alliance, metal roofs reflect solar radiant heat instead of absorbing it, which throughout the year, but especially during long summer days, can reduce cooling costs by up to 25 percent. In addition, some metal roofs are coated with special reflective pigments to minimize heat gain and keep occupants comfortable without having to turn on the air conditioning. Although referred to here as a “disadvantage”, this particular drawback doesn't have to be taken for granted. Of course, metal can be louder than other types of roofs, especially during a heavy rain or thunderstorm, but the additional layers of solid cladding or insulation that are installed underneath the roof usually minimize the sound you hear inside.
That said, these layers will need to be factored into the total cost of the roof. Fans of more traditional profiles can opt for a metal tile made like wooden beams, slate or clay tiles, or any other design. The metal doesn't have to stick out like a sore finger to do its job; rather, it can mimic just about any look with multi-layered factory finishes that ensure the look is not only beautiful, but also durable and long-lasting. The items may contain affiliate links that allow us to share the revenue from any purchase made.
Registering or using this site constitutes acceptance of our Terms of Service. For this reason, it is generally recommended to remove shingles from your house before installing a metal roof. Roof replacement is literally the opportunity to replace old roof materials and components that have reached the end of their useful life. While asphalt can offer between 15 and 20 color options, modern metal roofs come in more than 100 different colors, including standard, premium, and custom tones.
You'll need to check with your local building department to see if you can install a metal roof over two layers of shingles. The long life of the material, which tops the list of “advantages” of metal roofs, is the reason why most homeowners choose to change the roof or to a new construction. Two of the most popular roofing materials on the market are metal and asphalt, and both offer different advantages and disadvantages to the customer. While it's cheaper to buy shingles (which is why most homes have them), metal roofs can provide you with better long-term value.
In fact, a properly constructed metal roof will be able to withstand anything Mother Nature throws at it. While installing a metal roof is a project that many people can do, removing old asphalt shingles is a big task that many people avoid. Before starting with the installation of a metal roof over existing asphalt shingles, it is essential to evaluate the advantages and disadvantages of this work. The Bill Ragan Roofing team has been providing high-quality roofing services to homeowners in Nashville and surrounding areas of Middle Tennessee since 1990.