Flashing
Thin pieces of metal or other waterproof material installed at roof intersections and projections to prevent water infiltration.
Why It Matters for Homeowners
Why it matters: most roof leaks do not start at missing shingles, they start at failed flashing. The chimney, valleys, and skylights are where leaks begin. When comparing roofing quotes, ask whether the flashing is being reused or replaced. Reusing old flashing on a new roof is the most common corner-cut, and it almost always comes back as a leak within a few rainy seasons.
Related searches: roof flashing, flashing repair, chimney flashing