Flashing is one of the most important parts of any roofing system—it’s the detail work that prevents leaks around edges, walls, and penetrations. On modified bitumen roofs, proper flashing is the difference between a watertight system and one that fails early. At L&L Roofing & Construction, we follow proven methods to ensure your flashing is done right.
Our Flashing Practices on Modified Bitumen Roofs
- Base Flashing: Applied where the roof meets vertical surfaces, like walls or curbs, to direct water away from vulnerable joints.
- Cap Flashing (Counterflashing): Covers the top of base flashing for extra protection against water intrusion.
- Reinforced Seams: Additional plies or fabrics are used at flashing points for redundancy.
- Heat-Welded or Adhered Installation: Depending on the system, flashing is either torched, cold-applied, or self-adhered for a watertight seal.
- Metal Flashing Integration: Edge metal and drip edges are tied into the modified bitumen layers to prevent uplift and leaks.
Why Proper Flashing Matters
- Stops Leaks: Most roof leaks happen at penetrations and edges—not in the field of the roof.
- Extends Roof Life: Flashing protects the weakest points from early breakdown.
- Warranty Protection: Manufacturer warranties often require flashing to be installed to spec.
FAQ: How Do You Handle Flashing on Modified Bitumen Roofs?
Q: What areas need flashing the most?
A: Around walls, chimneys, skylights, HVAC curbs, pipes, and edges—anywhere the membrane meets another surface.
Q: Do you use metal with modified bitumen flashing?
A: Yes. Metal edge flashing is integrated with the membrane for strength and water protection.
Q: Can improper flashing void my warranty?
A: Absolutely. That’s why we follow manufacturer guidelines precisely.
Q: Is flashing repairable if it gets damaged?
A: Yes. Modified bitumen flashing can often be patched or reinforced without replacing the entire roof.
At L&L Roofing & Construction, we believe in honesty, integrity, and doing the right thing. That means paying extra attention to flashing details—because that’s where your roof needs protection most.
Call us today at (770) 874-0372 to schedule a modified bitumen roof inspection or consultation in Gainesville and surrounding areas.