How to Easily Repair Rusty Flashing on Your Roof

Flashing is an essential component of your roof, designed to prevent water leaks and protect vulnerable areas. However, over time, flashing can become damaged, leading to rust and holes that compromise its effectiveness. In this comprehensive guide, we’ll explore the steps to easily repair rusty flashing and keep your roof in top condition.

Identifying Rusty Flashing

The first step in repairing rusty flashing is to identify the problem areas. Look for signs of rust, such as discoloration, pitting, or holes in the flashing. Pay close attention to areas where the flashing meets the roof, chimneys, vents, or other roof penetrations, as these are common trouble spots.

Preparing the Area for Repair

Once you’ve identified the rusty areas, it’s time to prepare the surface for repair. Use a wire brush or sandpaper to remove any loose rust or debris from the flashing. Be sure to clean the area thoroughly to ensure a strong bond between the flashing and the repair material.

Repairing Small Holes or Pinholes

For small holes or pinholes in the flashing, you can use roofing cement to plug the openings. Apply a generous amount of cement to the hole, smoothing it out with a putty knife or your finger. Allow the cement to dry completely before moving on to the next step.

Patching Larger Holes

For holes up to about 3/4 inch in diameter, you can create a patch from the same material as the flashing. Cut a piece of flashing slightly larger than the hole and roughen the edges with a wire brush or sandpaper. Apply a generous amount of roofing cement to the back of the patch and press it firmly into place over the hole. Use a putty knife or roller to smooth out any air bubbles or wrinkles.

Painting the Repaired Area

Once the roofing cement has dried, you can paint the repaired area to match the existing flashing. Use a high-quality exterior paint that is compatible with metal surfaces. Apply at least two coats, allowing each coat to dry completely before applying the next.

Maintaining Your Flashing

To prevent future rust and damage, it’s essential to maintain your flashing regularly. Inspect the flashing periodically for signs of wear or damage and address any issues promptly. Keep the flashing clean and free of debris, and consider applying a rust-inhibitive coating or sealant to protect the metal.

By following these steps and maintaining your flashing regularly, you can easily repair rusty areas and keep your roof in top condition for years to come.