SKU: 63222515005

CMI 18-in x 120-in Silver Galvanized Steel Step Flashing, 28-Gauge W-Valley (V18G)

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Description

CMI 18-in x 120-in Silver Galvanized Steel Step Flashing, 28-Gauge W-Valley (V18G)18 in x 10 ft Galvanized Steel W Valley Step Flashing Durable 28 gauge galvanized steel W valley flashing that channels water where roof slopes meet. Sized 18 inches wide by 10 feet long, it protects valleys and chimney intersections with a silver finish for long lasting corrosion resistance. Key Features: W Valley Design: Directs rainwater safely down roof valleys to prevent leaks Heavy Duty Material: 28 gauge galvanized steel resists rust and

18-in x 10-ft Galvanized Steel W-Valley Step Flashing

Durable 28-gauge galvanized steel W-valley flashing that channels water where roof slopes meet. Sized 18 inches wide by 10 feet long, it protects valleys and chimney intersections with a silver finish for long-lasting corrosion resistance.


Key Features:

  • W-Valley Design: Directs rainwater safely down roof valleys to prevent leaks
  • Heavy-Duty Material: 28-gauge galvanized steel resists rust and corrosion
  • Generous Size: 18-in width x 120-in length for broad coverage in valley applications
  • Versatile Use: Suitable for roofs and chimneys; ideal with composite shingles or wood shakes
  • Safety Note: Sharp metal edges—use gloves during handling and installation

Specifications Table:

Specification Details
Type Sheet flashing
Style W-valley
Material Galvanized steel
Color/Finish Family Silver
Manufacturer Color/Finish Silver
Width (Inches) 18
Length (Inches) 120
Length Measurement 10-ft
Gauge 28
Depth (Inches) 0.0156
Package Quantity 1
For Use with Roofs Yes
For Use with Chimneys Yes
For Use with Gutters Yes
For Use with Doors No
For Use with Decks No
For Use with Windows No
For Use with Skylights No
For Use with Vents No
For Use with Pipes No
UNSPSC 30151600
Center Peak Height 1-1/4 in (per romance copy)
Side Hems 1/2 in closed hems (per romance copy)
Prop 65 Warning Yes
Warranty None

Frequently Asked Questions (FAQ):

Q: What roof applications is this flashing designed for?
A: It’s a W-valley sheet flashing intended for roof valleys where two slopes meet; can also be used around chimneys.


Q: What are the dimensions and gauge?
A: 18 inches wide, 120 inches (10 ft) long, and 28-gauge galvanized steel.


Q: Can it be used with composite shingles or wood shakes?
A: Yes—18-inch width works for comp shingle or wood shake installations.


Q: How is it installed?
A: Lay membrane/underlayment first, position flashing at the lowest part of the valley, nail along outer edges about 10 inches on center, and overlap successive pieces 10–12 inches with roofing cement.


Q: Is there a warranty?
A: None is listed for this product.


A Clean, Resilient Line for Roof Valleys

This galvanized W-valley flashing draws a crisp silver seam through the roofscape, guiding water with quiet precision. The folded hems add a subtle, tailored edge and enhance strength. Pair it with dark architectural shingles for a refined contrast and a polished, professional finish. It’s a small detail that elevates performance and the overall look—essential for a well-composed, enduring roof.


Protect your roof’s most vulnerable junctions—choose this 28‑gauge galvanized W‑valley flashing for reliable, professional-grade drainage.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 63222515005

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4.4 ★★★★★
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L
Verified Purchase
Lauren M
Chelsea, US
★★★★★ 5
Good for DIY projects
Color: Black, Size: 6 FT
Good quality. All works well and seems durable enough and like that it’s easy to replace in future if damaged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
C
Verified Purchase
Christopher Hudy
Pawtucket, US
★★★★★ 5
Easy Install on my headboard frame. Clean product and design.
Color: Black, Size: 10 FT, Color: Black, Size: 10 FT
Amazing product. Installed easily. Love the surge protection as well.
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Reviewed in the United States on May 13, 2026
A
Verified Purchase
Angelmom
Waukegan, US
★★★★★ 5
Works great and installs easy.
Color: Black, Size: 6 FT
The charger works really well and the a/c outlets work as they should. The install was easy.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
J.W.
Cuba, US
★★★★★ 5
Well made.
Color: Black, Size: 6 FT
I bought a version this product maybe for years ago. Suffice to say that the outlets were too loose. The plugs rattle around and regularly lost electrical conduct. Not a problem with these.
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Reviewed in the United States on March 13, 2026
J
Verified Purchase
Jim L.
Bozeman, US
★★★★★ 4
nice fit and powerful
Color: Black, Size: 6 FT
is pretty powerful
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026

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