To repair small holes in the roof flashing, grate the material around the hole with sandpaper or a wire brush. This will allow the cement to adhere better. Then clean the flashing to prepare it for repair. The patch should be cut slightly larger than the hole so that it overlaps on all sides.
Once the flashing has been prepared, the patch can be attached to the flashing with roofing cement. Use more roofing cement over the patch as an additional waterproofing measure. A roofing contractor can help you determine what type of material is being used and where you can buy a part that matches your roof well. Unless your roof pitch is relatively low and you have the experience, tools and confidence necessary to safely perform the work, be careful not to do your own roof repairs, working on a roof can be dangerous.
Expert advice on how to repair roof flashings and chimneys, prevent ice build-up and solve other roof flashing problems. If your roof doesn't have flashing, flashing damaged or just wasn't installed properly, you can open your roof and your house to water damage. The drip edge flashing is placed around the edges of a roof to prevent water from dripping behind gutters and rotting the roof in the process. While roofing professionals occasionally use nails when flashing, they must choose between nailing them to the plane of the roof or to the vertical wall.
Simply put, roof flashing uses a waterproof material (usually steel) to draw water away from the most vulnerable areas of the roof. Installing flashing anywhere your shingles hit something, such as a wall, chimney, or in open roof valleys, is crucial to the life of your roof investment. A roof repair contractor can also perform regular inspections to ensure roofing materials are in good condition and that there are no signs of damage requiring attention. Cut the patch larger than the hole, fix it with roofing cement, and then cover the patch with more roofing cement, as shown on the right.
Ultimately, it will depend on what your contractor finds during the roof inspection if you have to replace the current roof flashing during the roof replacement. Roof flashing is a thin material, usually galvanized steel, that professional roofers use to drive water away from critical roof areas, wherever the roof plane meets a vertical surface such as a wall or attic. The stepped flashing is the most time-consuming of all roof flashing jobs because you have to complete it step by step as you climb the roof shingles. If your roof flashing is damaged beyond repair or if you have areas that require flashing, the roofing experts at PJ Fitzpatrick can install a new flashing to restore the roof's waterproof seals.
At Bill Ragan Roofing we pride ourselves on educating homeowners on all aspects of roofing, including the materials that make up their roof. There are other types of prefabricated flashings that are not made for use on roofs and can break if you try to install them on a roof.