How to Install Metal Roofing Over Shingles

metal roof
Photo by SUNBEAM PHOTOGRAPHY on Unsplash

Metal roofing is an increasingly popular choice for homeowners looking for a long lasting, durable roof that is also low maintenance. Installing metal roofing over existing shingles is a great way to update the look of your home. This article will provide an overview of the steps needed to properly install metal roofing over existing shingles.

What You Will Need

Before you start the installation process, you will need to ensure you have the right materials. Here is a list of the items you will need:

  • Metal roofing panels
  • Screws
  • Hammer
  • Protective gloves
  • Utility knife
  • Caulk
  • Tin snips
metal houses roof
Photo by Tiago Rodrigues on Unsplash

Step 1: Remove Existing Shingles

The first step in the installation process is to remove the existing shingles. Start by removing the top row of shingles and pull them away from the roof. Be sure to wear protective gear and gloves when doing this as the shingles may contain sharp edges and small nails. Once all of the shingles have been removed, you can begin to install the metal roofing.

Step 2: Prepare the Roof Deck

Once the shingles have been removed, you will need to inspect the roof deck for any signs of damage. If the roof deck is in good condition, you can start to install the metal roofing. However, if there are signs of damage, such as rotting wood or cracked boards, you may need to repair or replace them before continuing.

Step 3: Measure and Cut the Panels

Now that the roof deck is ready, you can measure and cut the metal roofing panels to fit the roof. Use a utility knife to cut the panels to the desired size and shape. Make sure to measure twice before cutting to ensure the panels fit correctly.

Step 4: Install the Panels

Once the panels have been cut, you can begin to install them. Start at the bottom of the roof and work your way up. Place the panels on the roof and use screws to secure them in place. Make sure to use the correct size and type of screws for the material you are working with.

blue house and metal roof
Photo by Debby Hudson on Unsplash

Step 5: Seal the Edges

Once the panels are installed, you will need to seal the edges. Apply a bead of caulk along the edges of the panels to ensure they are properly sealed. This will help to prevent water from seeping in and causing damage.


Installing metal roofing over existing shingles is a great way to update the look of your home. By following the steps outlined in this article, you can easily install metal roofing over existing shingles and ensure a long lasting, durable roof.

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