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Roof Flashing

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SKU 589090

Drip Edge Flashing 4 in. x 2 in. x 10 ft. Gravel Stop Galvanized Steel Metallic 26-Gauge

Original price $21.09 - Original price $21.09
Original price
$21.09
$21.09 - $21.09
Current price $21.09
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About This Product This Gibraltar Gravel Stop Flashing is made from professional grade 26-Gauge galvanized steel. This Gravel Stop Flashing has a ...

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SKU 155877

Vent Pipe Flashing 4 in. Galvanized Steel Metallic with FHA Base 26-Gauge

Original price $28.00 - Original price $28.00
Original price
$28.00
$28.00 - $28.00
Current price $28.00
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About This Product This 1-piece galvanized steel roof jack meets or exceeds FHA specifications. This pipe flashing protects against leaks on kitche...

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SKU 479961

Step Flashing 3 in. x 7 in. Galvanized Steel Metallic 28-Gauge (25-Pack)

Original price $22.98 - Original price $22.98
Original price
$22.98
$22.98 - $22.98
Current price $22.98
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About This Product Step Flashing is used to protect chimneys, skylights, dormers and roof-to-wall intersections. Precision bent galvanized step fl...

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SKU 309654

Vent Pipe Flashing 3 in. Galvanized Steel Metallic with FHA Base 26-Gauge

Original price $24.68 - Original price $24.68
Original price
$24.68
$24.68 - $24.68
Current price $24.68
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About This Product This 1-piece galvanized steel roof jack meets or exceeds FHA specifications. This pipe flashing protects against leaks on kitche...

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SKU 304806

Rain Diverter 3-1/2 in. x 6 in. x 1/2 in. x 10 ft. Tile Pan Galvanized Steel Metallic 26-Gauge

Original price $39.98 - Original price $39.98
Original price
$39.98
$39.98 - $39.98
Current price $39.98
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About This Product Tile Pan is flashing used where a tile roof intersects with a sidewall. When properly installed, Tile Pan will reliably channel...

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SKU 495209

W-Valley 24 in. x 10 ft. Galvanized Steel Metallic 26-Gauge

Original price $66.98 - Original price $66.98
Original price
$66.98
$66.98 - $66.98
Current price $66.98
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About This Product W-Valley Flashing protects the critical area of your roof where two slopes come together to form a valley. When properly instal...

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SKU 842391

Roll Valley 20 in. x 25 ft. Aluminum Metallic 30-Gauge

Original price $61.38 - Original price $61.38
Original price
$61.38
$61.38 - $61.38
Current price $61.38
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About This Product Aluminum Roll Valley is a lightweight, rust-resistant flashing that can be bent, cut and shaped for many weatherproofing projec...

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SKU 413233

Flashing Angle 2 in. x 6 in. x 10 ft. Roof-to-Wall Bonderized Steel Gray 28-Gauge

Original price $25.68 - Original price $25.68
Original price
$25.68
$25.68 - $25.68
Current price $25.68
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About This Product The Gibraltar Roof-To-Wall Flashing is made from trusted 28-Gauge bonderized steel. It is designed to cover and protect roof-to...

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SKU 473252

Drip Edge Flashing 2 in. x 3 in. x 10 ft. L-90 Galvanized Steel White 28-Gauge

Original price $14.47 - Original price $14.47
Original price
$14.47
$14.47 - $14.47
Current price $14.47
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About This Product The Gibraltar Galvanized Drip Edge Flashing is made from reliable 28-Gauge galvanized steel. This Drip Edge Flashing provides p...

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SKU 293992

Drip Edge Flashing 2 in. x 3 in. x 10 ft. L-90 Galvanized Steel Charcoal 28-Gauge

Original price $17.16 - Original price $17.16
Original price
$17.16
$17.16 - $17.16
Current price $17.16
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About This Product The Gibraltar Galvanized Drip Edge Flashing is made from reliable 28-Gauge galvanized steel. This Drip Edge Flashing provides p...

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SKU 486039

Drip Edge Flashing 2 in. x 3 in. x 10 ft. L-90 Bonderized Steel Gray 28-Gauge

Original price $13.43 - Original price $13.43
Original price
$13.43
$13.43 - $13.43
Current price $13.43
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About This Product The Gibraltar Bonderized Drip Edge Flashing is galvanized steel that has been treated to promote better paint adhesion. This Dr...

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SKU 245674

Flashing Angle 2 in. x 3 in. x 10 ft. Roof-to-Wall Galvanized Steel 26-Gauge

Original price $13.43 - Original price $13.43
Original price
$13.43
$13.43 - $13.43
Current price $13.43
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About This Product The Gibraltar Roof-To-Wall Flashing is made from professional grade 26-Gauge galvanized steel. It is designed to cover and prot...

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SKU 812908

Drip Edge Flashing 2 in. x 2 in. x 10 ft. L-90 Galvanized Steel Brown 28-Gauge

Original price $9.70 - Original price $9.70
Original price
$9.70
$9.70 - $9.70
Current price $9.70
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About This Product The Gibraltar Galvanized Drip Edge Flashing is made from reliable 28-Gauge galvanized steel. This Drip Edge Flashing provides p...

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SKU 979915

Drip Edge Flashing 2 in. x 2 in. x 10 ft. L-90 Galvanized Steel White 28-Gauge

Original price $9.70 - Original price $9.70
Original price
$9.70
$9.70 - $9.70
Current price $9.70
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About This Product The Gibraltar Galvanized Drip Edge Flashing is made from reliable 28-Gauge galvanized steel. This Drip Edge Flashing provides p...

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SKU 961216

Drip Edge Flashing 2 in. x 2 in. x 10 ft. L-90 Galvanized Steel Metallic 28-Gauge

Original price $9.26 - Original price $9.26
Original price
$9.26
$9.26 - $9.26
Current price $9.26
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About This Product The Gibraltar Galvanized Drip Edge Flashing is made from reliable 28-Gauge galvanized steel. This Drip Edge Flashing provides p...

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SKU 020383

Z Bar Flashing 2 in. x 1-1/2 in. x 1/2 in. x 10 ft. Water Table Galvanized Steel Metallic 28-Gauge

Original price $10.78 - Original price $10.78
Original price
$10.78
$10.78 - $10.78
Current price $10.78
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About This Product Water Table Flashing, also known as Drip Cap, protects the top of exterior windows and doors from water infiltration. When prop...

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SKU 105816

Z Bar Flashing 2 in. x 1-1/2 in. x 1/2 in. x 10 ft. Water Table Bonderized Steel Gray 28-Gauge

Original price $13.43 - Original price $13.43
Original price
$13.43
$13.43 - $13.43
Current price $13.43
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About This Product Water Table Flashing, also known as Drip Cap, protects the top of exterior windows and doors from water infiltration. When prop...

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SKU 522351

Vent Pipe Flashing 2 in. Galvanized Steel Metallic with FHA Base 26-Gauge

Original price $19.23 - Original price $19.23
Original price
$19.23
$19.23 - $19.23
Current price $19.23
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About This Product This 1-piece galvanized steel roof jack meets or exceeds FHA specifications. This pipe flashing protects against leaks on kitche...

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SKU 278646

Roll Valley 14 in. x 25 ft Aluminum Metallic 30-Gauge

Original price $44.58 - Original price $44.58
Original price
$44.58
$44.58 - $44.58
Current price $44.58
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About This Product Aluminum Roll Valley is a lightweight, rust-resistant flashing that can be bent, cut and shaped for many weatherproofing projec...

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SKU 333063

Roll Valley 12 in. x 25 ft. Galvanized Steel Metallic 28-Gauge

Original price $62.98 - Original price $62.98
Original price
$62.98
$62.98 - $62.98
Current price $62.98
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About This Product Galvanized Steel Roll Valley is a versatile, rust-resistant flashing can be bent, cut and shaped for many weatherproofing proje...

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SKU 379762

Drip Edge Flashing 1 in. x 2 in. x 10 ft. C3 Galvanized Steel Metallic 28-Gauge

Original price $7.32 - Original price $7.32
Original price
$7.32
$7.32 - $7.32
Current price $7.32
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About This Product The Gibraltar Galvanized Drip Edge Flashing is made from reliable 28 gauge galvanized steel. This Drip Edge Flashing provides p...

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SKU 204631

Z Bar Flashing 1 in. x 10 ft. Bonderized Steel Gray 28-Gauge

Original price $16.33 - Original price $16.33
Original price
$16.33
$16.33 - $16.33
Current price $16.33
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About This Product Bonderized Steel Z-Flashing is made from 28-Gauge galvanized steel that has been treated to promote better paint adhesion. It i...

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SKU 369422

Rain Diverter 1/4 in. x 5-3/4 in. Aluminum Metallic Vent with Black Collar

Original price $33.68 - Original price $33.68
Original price
$33.68
$33.68 - $33.68
Current price $33.68
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About This Product Gibraltar's adjustable rubber pipe flashing for metal roofing accommodates roof penetrations from 1/4 in. up to 5-3/4 in. Dia. T...

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SKU 559634

Rain Diverter 1-1/4 in. x 4 in. Roof Collar Plastic Black

Original price $9.05 - Original price $9.05
Original price
$9.05
$9.05 - $9.05
Current price $9.05
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About This Product The Gibraltar Building Accessories pipe flashing repair collar is your instant solution to a leaky vented pipe flashing. Simply...

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Roof Flashing: What You Need to Know

Roof flashing, also known as weatherproofing metal trim or protective edge flashing, is an essential component in roofing systems designed to prevent water infiltration and direct moisture away from critical areas. Used in conjunction with shingles, tiles, or metal roofing, flashing ensures long-lasting protection against leaks, structural damage, and weather-related wear. Available in various colors, gauges, and styles, roof flashing is a crucial addition to residential and commercial roofing projects.

Types and Uses:

  • Drip Edge Flashing: Installed along roof edges to guide water away from the fascia and prevent damage to underlying structures. Ideal for extending roof life and enhancing drainage efficiency.
  • Roll Flashing: A flexible, continuous metal sheet that provides seamless protection along valleys, ridges, and transitions. It is widely used for custom installations and long-span coverage.
  • Step Flashing: Designed for use along chimneys, walls, and dormers, step flashing consists of small, overlapping metal sections that integrate with shingles to create a watertight barrier.
  • Transition Flashing: A specialized flashing used where roofing materials meet at different slopes or surfaces, ensuring proper water diversion in complex roofing designs.
  • Vent Pipe Flashing: Engineered to seal around roof penetrations such as plumbing vents, exhaust pipes, and HVAC ducting, preventing leaks at critical entry points.

Gauge Options:

  • 23-Gauge: A lightweight yet durable option, best suited for small residential applications and non-structural waterproofing.
  • 24-Gauge: Slightly thicker for improved strength, commonly used for standard roof flashing installations requiring added rigidity.
  • 26-Gauge: A popular balance between flexibility and durability, ideal for general-purpose flashing, step flashing, and drip edges.
  • 28-Gauge: A versatile and widely used thickness, providing cost-effective protection while maintaining ease of installation.
  • 30-Gauge: A heavier-duty option that offers enhanced strength and longevity for demanding roofing applications.
  • 32-Gauge: The thickest and most robust gauge, designed for commercial and industrial roofing where maximum durability is required.

Why Choose Supply Ontime?

At Supply Ontime, we offer reliable materials designed to meet your project’s needs. With same-day delivery across the Greater Los Angeles area, we make it easy to keep your projects on schedule. Order Roof Flashing now and get it delivered today!

Roof Flashing FAQ

 What types of flashing are available from Supply Ontime?

The store stocks drip-edge, roll, step, transition, and vent-pipe flashing made from galvanized steel, aluminum, and rubber. Sizes range from 2-in. roll tape to 10-ft Z-bar flashing. Colors include black, brown, gray, metallic silver, and white. Each type is designed to cover specific roof transitions and penetrations. Contractors can mix and match materials for different sections of the roof.

How do I choose the right flashing material?

Aluminum flashing resists corrosion and is suitable near the coast, while galvanized steel offers strength for inland homes. Rubber pipe boots provide a watertight seal around vent pipes. Match the flashing color to your shingle or fascia color to maintain curb appeal. The choice often depends on budget and long-term maintenance needs. Supply Ontime can advise based on the project location and style.

Are there code requirements for flashing in LA?

Los Angeles building codes require drip-edge flashing at eaves and rakes and proper flashing at wall intersections and roof penetrations to prevent water intrusion. Use step flashing under each shingle course where roofs meet walls and vent-pipe flashings that conform to pipe diameter. These codes are in place to protect against leaks during seasonal rains. Inspectors often check flashing placement before signing off on roofing work.

 Does Supply Ontime deliver flashing components promptly?

Yes. Flashing pieces up to 10 ft can be delivered same-day or in a scheduled window. For large orders of steel flashing, note staircases or elevator access so drivers can safely transport long pieces. Truck bed, curbside, and white-gloves delivery options are available. Orders can also be combined with shingles and underlayment to streamline shipments.