There are a lot of things to consider before you begin installing metal roofing over shingles. Before you begin, make sure all of the mechanical issues are resolved and the plywood in your existing shingle roof is in good shape. If it’s not, the screws won’t stay, which makes the roof more vulnerable to wind. Then, determine the type of metal you want to install. Some manufacturers also have special instructions that you can download and follow for installation.
Installing metal roofing over shingles requires a new underlayment. The underlayment serves two purposes. It provides a surface for the roofing installers and protects the structure from water intrusion. It also prevents condensation on the metal roof panels from reaching the lumber or the inside of the building. A quality underlayment should prevent water from penetrating your building’s structure and making its way inside.
Install the panels by using a special bending tool. These tools can be pricey, but they are necessary for metal roofing over shingles. Once you have installed the underlayment, framing, and panels, you’ll be ready to install the panels. Before installing the panels, you must estimate the total square footage of the roof and then add 10 percent to compensate for waste. Make sure to buy the right number of roofing screws in a color that matches your existing roof.
In addition to being more eco-friendly, metal roofing is a more sustainable option than traditional shingles. Most of the materials used for roofing are made from 25-95% recycled material. The majority of metal roofs are 100 percent recyclable, whereas shingles typically end up in landfills. Another benefit to installing metal over shingles is the fact that the existing asphalt shingles don’t have to be torn off before installing a new metal roof.
While there are many factors to consider before installing metal roofing over shingles, the most important one is the amount of time you have to invest. In the end, if you’re willing to invest the time and effort into learning about these factors, the results will be worth it. You’ll be glad you did! The benefits are substantial. Once you know how to install metal roofing over shingles, you’ll be on your way to a shiny new roof.
Depending on the complexity of the project, you can choose a seamless steel panel roof. This requires special tools and is best left to professional roofers. You may also opt to install steel shingles if you don’t have enough experience with metal roofing. In general, metal roofing is lightweight, so there’s less of a risk of falling debris. If you have a wooden or brick roof, however, metal roofing is still the way to go.