TopShield Galvanized W-Valley with Zinc-Aluminum Finish - 26-Gauge, Multiple Widths and Colors
TopShield's Galvanized W-Valley with Zinc-Aluminum Finish is 26-gauge W-profile valley flashing for shingle and tile roofs, offered in 25 variants. Choose widths from 10 in. up to 30 in. (including 10 in. x 50 ft rolls), hem types from 5/16 in. to 3/4 in., and rib configurations from 2-rib to 5-rib in Mill, Brown, Charcoal, Black, Dark Black, White, Gray, or Tan. Most items sell per piece.
Key Features:
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W-profile channel: W-shaped center channel directs water converging in roof valleys and resists backflow.
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Zinc-aluminum finish: Zinc-aluminum coating over galvanized steel adds corrosion resistance in the valley.
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26-gauge metal: 26-gauge steel provides a stiff valley liner that holds its shape under foot traffic and water flow.
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Wide size range: Widths from 18 in. to 30 in. in pieces, plus a 10 in. x 50 ft roll option.
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Rib options: Choose 2-rib, 3-rib, or 5-rib configurations and 5/16 in., 3/8 in., 5/8 in., or 3/4 in. hems.
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Seven colors plus Mill: Painted Brown, Charcoal, Black, Dark Black, White, Gray, and Tan, or unfinished Mill.
Specifications Table:
| Specification |
Details |
| Brand |
TopShield |
| Sell unit |
1 piece (or 1 roll, 10 in. x 50 ft for the roll variant) |
| Product line |
TopShield Galvanized W-Valley with Zinc-Aluminum Finish |
| Available colors |
Brown, Charcoal, White, Gray, Tan, Black, Dark Black, Mill |
| Available sizes |
18 in., 24 in., 26 in., 30 in. pieces (various hem and 2/3/5-rib options) plus 10 in. x 50 ft roll; all 26 GA |
| Material |
Galvanized steel with zinc-aluminum finish |
| Finish / texture |
Zinc-aluminum coated; painted colors or Mill (unfinished) |
| Thickness |
26 gauge |
| Dimensions |
Widths 10 in. to 30 in.; roll version 10 in. x 50 ft |
| Hem options |
5/16 in., 3/8 in., 5/8 in., 3/4 in. hem; hemmed, open hem, or standard hem |
| Rib options |
2-rib, 3-rib, 5-rib |
| Intended use |
Valley flashing for residential roofs |
| Category use |
Residential roofing, valley flashing |
Coverage & How Much You Need:
Piece variants are sold per piece; the roll variant covers 50 linear feet of valley at 10 in. wide. Size valley flashing to your roof's valley length and pitch; wider valleys and steeper or longer runs call for 24 in. or wider metal.
Fit and Compatibility:
Use under asphalt shingle, tile, or other steep-slope roof coverings as a valley liner, paired with TopShield eave closures and flashing accessories. Underlayment and fasteners are sold separately.
Frequently Asked Questions (FAQ):
Q: What width W-valley should I use?
A: 18 in. suits short, low-volume valleys; 24 in. to 30 in. is common for longer or higher-flow valleys, following your roof covering manufacturer's valley detail.
Q: What is the difference between rib counts?
A: 2-, 3-, and 5-rib variants add ribs for stiffness and to control water in the center channel; pick the configuration your roofing detail specifies.
Q: What does Mill finish mean?
A: Mill is the unfinished zinc-aluminum coated metal without paint; colored variants are finished for appearance.
Q: Is there a roll option?
A: Yes, a 10 in. x 50 ft, 26-gauge roll is available for long valley runs with fewer seams.
Q: What gauge is the metal?
A: All variants are 26-gauge steel with a zinc-aluminum finish.
Q: How is it sold?
A: Most items sell as individual pieces; the 10 in. x 50 ft item sells as a roll.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Match valley width to roof size and local water volume: wider 24 in. to 30 in. metal with hemmed edges gives better capacity and edge hold-down on long or steep valleys. Hemmed edges stiffen the flange and reduce wind uplift under shingles; open-hem and ribbed variants serve specific detailing preferences. Always lap W-valley over the underlayment and follow the shingle manufacturer's valley installation instructions.
Valley metal edges are sharp; wear cut-resistant gloves and use roof anchors and fall protection when working in valleys.
Choose your TopShield Galvanized W-Valley with Zinc-Aluminum Finish in the width, rib, and color your roof needs.
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