How to Install Step Flashing on Existing Roof: Fast-Track Guide to Perfectly Installing Step Flashing

Installing step flashing on an existing roof can seem daunting, but it’s essential for preventing leaks and protecting your home. Follow this detailed guide to ensure your roofing system stays watertight for years to come.

1. Gather Your Materials

Before starting, gather your materials: step flashing, roofing cement, a utility knife, a hammer, and roofing nails. You'll also need safety gear, such as gloves and goggles.

2. Assess the Existing Roof Condition

Check the current condition of your roof and the area where you will install the step flashing. Look for any repairs needed and ensure the existing shingles or tiles are intact.

3. Remove Shingles from the Affected Area

Carefully remove the shingles surrounding the area where you will apply the flashing. Use a utility knife to cut the sealant and a pry bar to lift them gently.

4. Install the Step Flashing

Start by placing the first piece of step flashing against the wall, overlapping the bottom edge by at least one inch. Nail it into place and make sure the top edge of the flashing is sealed under the shingles. Continue installing pieces of step flashing up the wall, making sure each piece overlaps the one below it.

5. Reinstate Shingles

Once the step flashing is securely installed, you can begin putting the shingles back in place. Ensure the shingles overlap the step flashing properly to maintain water drainage away from the wall.

6. Apply Roofing Cement

To ensure a watertight seal, apply roofing cement along the edges of the flashing and where it meets the shingles. This step is crucial for extra protection against moisture.

7. Inspect Your Work

After completing the installation, take a moment to inspect your work. Ensure that each piece of flashing is securely in place and that the shingles are properly aligned to prevent water pooling.

FAQ

Q: What is step flashing used for?A: Step flashing is used to create a watertight seal between a roof and a vertical surface such as a wall, preventing leaks.

Q: How often should I inspect my roof for damage?A: It's advisable to inspect your roof at least twice a year, ideally in the spring and fall, as well as after severe weather events.

Q: Can I install step flashing myself, or should I hire a professional?A: If you have basic roofing skills and safety precautions, you can install step flashing yourself. However, hiring a professional may be best for complex roofs.

Q: What should I do if my roof starts leaking?A: If you notice a leak, temporarily cover the area with a tarp until you can make a permanent repair, and identify the source of the leak as soon as possible.

Q: How long does step flashing last?A: When installed correctly, step flashing can last between 20 to 30 years, depending on the materials used and the roof's condition.