Open Valley Roofs vs. Closed Valley Roofs: Luxe Roofing’s Expert Breakdown
When two roof slopes meet, they create a “valley” — a critical area for managing water runoff. The way this valley is constructed impacts not just your roof’s appearance, but also its durability and performance. At Luxe Roofing, we guide homeowners through the three main options: woven valleys, closed-cut valleys, and open (metal-flashed) valleys.
Woven Valleys
Woven valleys are made by interlacing shingles from each side of the valley. While the finished look is seamless, this method is less ideal with modern laminated shingles, which are thicker and don’t bend easily. The result can be a lumpy, uneven valley that’s prone to trapping debris or water. Most shingle manufacturers don’t recommend this method — some even void warranties if it’s used.
Closed-Cut Valleys
Closed-cut valleys involve laying shingles from one slope across the valley, then overlapping them with shingles from the other slope, which are trimmed back about 2 inches from the valley center. This creates a crisp, clean visual line that many homeowners prefer. However, since the valley is fully covered in shingles with no metal flashing beneath, water runoff isn’t as efficient. This method also requires more labor with thicker shingles and may need more frequent maintenance over time.
Open (Metal-Flashed) Valleys
Our top recommendation at Luxe Roofing is the open valley — a method that installs a durable metal flashing down the center of the valley before shingling up to its edges. The metal acts as a runway for rain and melting snow, allowing quick, clean drainage that minimizes leaks, ice dams, and water damage. While this option has a slightly higher upfront cost, the benefits in durability, ease of maintenance, and long-term performance make it the smart choice in most climates.
Key Differences in Plain Terms:
Woven Valleys: Lower cost, but outdated and less effective with modern materials. Not typically recommended.
Closed Valleys: Attractive and clean-looking, but can slow water flow and require more upkeep.
Open Valleys: Most efficient for water drainage and long-term roof protection. Slightly higher cost, but fewer problems later.
Why Luxe Roofing Prefers Open Valleys
Superior Water Management: The metal flashing gives rain and snow nowhere to pool — water runs off cleanly and quickly.
Long-Term Reliability: This method is more resistant to wear and tear, and is easier to inspect and repair.
Warranty Approved: Many manufacturers prefer or require this style for full warranty coverage.
Low Maintenance: It’s easier to keep debris out of a metal valley than a fully shingled one.
When a Closed Valley Might Make Sense
In some situations, a closed-cut valley can be a good alternative. For example:
If your home has a simple roofline with lower water volume.
If you’re looking for a more budget-conscious solution.
If you prefer the cleaner look of uninterrupted shingle surfaces.
Luxe Roofing’s Final Take
If you want the most resilient, efficient, and warranty-friendly solution, open metal valleys are the best way to go. For homeowners more focused on visual appeal or cost, closed valleys are a viable option — as long as they’re installed with precision. Woven valleys, while still used occasionally, are generally not recommended for modern architectural shingles.
At Luxe Roofing, we tailor every valley to the specific needs of your roof — combining industry best practices with high-end craftsmanship. Need a second opinion or a fresh install? We’re here to help.
Ready to Protect and Enhance Your Roof?
Don't wait for the next storm to find out if your roof can handle the weather. Contact Luxe Roofing today to get a personalized consultation and see how open valleys can improve your roof's performance and longevity. Our experts are ready to guide you through the best options for your home. Schedule your free estimate now and trust our award-winning craftsmanship to keep your home safe and beautiful.
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