Step Flashing vs. Pan Flashing: What’s Best for Shingle Roofs?
Ronnie Smith • May 6, 2025
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When it comes to protecting your shingle roof from water damage, the flashing method you choose matters. While pan flashing is common in some applications, step flashing is the clear winner for shingle roofs.
What is Step Flashing?
Step flashing uses a series of L-shaped metal pieces layered between each row of shingles where the roof meets a wall or chimney. This creates a watertight, stair-step pattern that directs water safely down the roof.
Why Step Flashing is Better
Superior Water Protection: Each flashing piece overlaps the next, channeling water away from the roof and walls.
Seamless with Shingles: Step flashing is woven into the shingles, leaving no gaps for water to sneak in.
Versatile Fit: Works well around chimneys, dormers, and angled roof transitions.
Durable Materials: Made from rust-resistant aluminum, galvanized steel, or copper.
Cleaner Look: Properly installed, it blends into the roofline for a clean finish.
Trusted by Pros: It’s the standard in asphalt shingle roofing for a reason—decades of proven performance.
Bottom Line
Pan flashing may work on flat roofs, but for pitched shingle roofs, step flashing offers longer-lasting, more reliable protection. Always hire a professional roofer to ensure it’s done right.
When it comes to safeguarding your business investment, a commercial roof warranty plays a crucial role. Here are some key benefits that make a commercial roof warranty an essential consideration for any business owner: 1. Financial Security A commercial roof warranty provides vital financial security by covering the costs of repairs and maintenance. Roof damage can be costly, and a warranty ensures that you won’t be burdened with unexpected expenses, allowing you to allocate your budget more effectively. 2. Longevity of the Roof Warranties often include regular inspections and maintenance, which help in identifying and addressing minor issues before they turn into major problems. This proactive approach can significantly extend the life of your roof, protecting your investment for many years. 3. Assured Quality With a warranty, you can rest assured that any repairs or maintenance will be carried out by certified professionals. This ensures that the work meets high industry standards, reducing the likelihood of future issues and ensuring the roof’s integrity. 4. Enhanced Property Value A building with a well-maintained roof under warranty is more appealing to potential buyers or tenants. It demonstrates that the property is in good condition and reduces the perceived risk, thereby enhancing its market value. 5. Peace of Mind A commercial roof warranty provides peace of mind by ensuring that you are protected against unforeseen roof problems. This allows you to focus on running your business without the constant worry of potential roof failures and associated costs. 6. Safety Assurance A well-maintained roof is critical for the safety of your building’s occupants. Regular maintenance and prompt repairs, often included in warranty agreements, help prevent leaks and structural damage, thereby ensuring a safe environment for everyone. 7. Compliance with Regulations Warranties often require adherence to local building codes and regulations. This ensures that your roof is up to standard, avoiding potential legal issues and ensuring that the roof is built and maintained to last. In summary, a commercial roof warranty is an investment that provides financial protection, extends the lifespan of your roof, ensures high-quality repairs, enhances property value, and offers peace of mind. By securing a warranty, you are not only protecting your roof but also the future of your business.
Regular roof maintenance is often overlooked until a major issue arises, leading to costly repairs or even a complete roof replacement. Learn why it is critical to have a good plan in place.
