Shingle Roofing Valley Flashing: What Every Columbus Homeowner Must Know
Shingle Roofing Valley Flashing: The Overlooked Detail That Can Save Your Roof
When it comes to protecting your home, most homeowners focus on the shingles. But what about the valleys—the areas where two roof planes meet? These are the most vulnerable spots on your roof, and without proper flashing, they’re an open invitation for leaks and costly damage.
At The Roof Champion of Columbus, we see this mistake far too often. And it’s usually because valley flashing wasn’t installed properly, or wasn’t installed at all.
Why Are Roof Valleys So Vulnerable?
Water naturally funnels through valleys during rainstorms.
Ice and snow buildup is heavier in valleys during Ohio winters.
Wind-driven rain easily forces its way into these vulnerable seams.
Without the right flashing, water finds its way under your shingles, damaging your roof deck and insulation, and even creating hidden mold issues inside your home.
What’s the Right Way to Flash a Roof Valley?
There are two main types of valley installations:
Open Valleys (Best for Longevity):
A sheet of metal flashing is installed directly in the valley.
Water flows cleanly over the metal and off the roof.
Materials like galvanized steel, aluminum, or copper are used.
Closed Valleys (Common but Riskier):
Shingles are woven or lapped directly over the valley.
While it looks cleaner, water doesn’t shed as efficiently.
Without precise installation, this method is prone to early failure.
At The Roof Champion, we recommend open valleys—especially for homes in Columbus, Powell, and Dublin where we see a lot of ice damming and heavy rains.
Common Mistakes We Fix All the Time
Using Thin Metal Flashing: Cheap flashing bends or corrodes fast. We use at least 24-gauge galvanized steel or copper for longer life.
Skipping Ice & Water Shield: Every valley should have a peel-and-stick waterproof barrier under the flashing. This is required by code and essential for Ohio winters.
Incorrect Nailing: Nails placed too close to the valley let water creep in. We always follow manufacturer specs and code-compliant practices.
Why Choose The Roof Champion of Columbus?
Travis Haessly and his team don’t just slap shingles on and call it a day. We take the time to do the job right—because we know that what’s under the shingles is what really protects your home.
Over 15 years of hands-on roofing expertise.
Proudly serving Columbus, Powell, Dublin, Westerville, and nearby communities.
We fight for homeowners in insurance claims to ensure full coverage for repairs and replacements.
Don’t wait for a leak to discover poor valley flashing. Schedule a roof inspection today, and we’ll make sure your roof is protected where it matters most.
📞 Call Travis at (614) 639-3422
🌐 Visit us at www.roofchampcolumbus.com
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