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Roof Flashing

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SKU 028813

Rain Diverter 1-1/4 in. x 4 in. Pipe Boot Plastic Black

Original price $10.24 - Original price $10.24
Original price
$10.24
$10.24 - $10.24
Current price $10.24
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About This Product Gibraltar's adjustable pipe flashing can accommodate 1-1/4 in., 1-1/2 in., 2 in. or 3 in. Type B installations. The elastomer c...

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SKU 446461

Rain Diverter 1-1/4 in. x 4 in. Pipe Boot Galvanized Steel Metallic

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 The Gibraltar Building Accessories adjustable pipe flashing can accommodate 3 in. or 4 in. Type "B" installations. The elastome...

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SKU 243480

Rain Diverter 1-1/4 in. x 4 in. Pipe Boot Aluminum Metallic

Original price $15.19 - Original price $15.19
Original price
$15.19
$15.19 - $15.19
Current price $15.19
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About This Product The Gibraltar Building Accessories adjustable pipe flashing can accommodate 1-1/4 in. 1-1/2 in. 2 in. or 3 in. Type "B" install...

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SKU 675734

Drip Edge Flashing 1-1/4 in. x 2-1/4 in. x 10 ft. L-90 Hemmed Galvanized Steel White 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 Hemmed Galvanized Drip Edge Flashing is made from reliable 28-Gauge galvanized steel. This Drip Edge Flashing pro...

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SKU 561153

Rain Diverter 1-1/2 in. x 4 in. x 6 ft. Galvanized Steel Metallic 28-Gauge

Original price $14.16 - Original price $14.16
Original price
$14.16
$14.16 - $14.16
Current price $14.16
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About This Product The Gibraltar Building Products Rain Diverter is used above doorways where there is no gutter above. The Rain Diverter Flashing...

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SKU 641020

Rain Diverter 1-1/2 in. x 1-1/2 in. x 10 ft. Galvanized Steel Metallic 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 This roof edge flashing, often referred to as nosing, has an inward facing kick that keeps the face snug against the fascia or ...

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SKU 583708

Drip Edge Flashing 1-1/2 in. x 1-1/2 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 842778

Drip Edge Flashing 1-1/2 in. x 1-1/2 in. x 10 ft. L-90 Galvanized Steel White 28-Gauge

Original price $8.62 - Original price $8.62
Original price
$8.62
$8.62 - $8.62
Current price $8.62
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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 856343

Drip Edge Flashing 1-1/2 in. x 1-1/2 in. x 10 ft. L-90 Galvanized Steel Brown 28-Gauge

Original price $8.62 - Original price $8.62
Original price
$8.62
$8.62 - $8.62
Current price $8.62
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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 203671

Drip Edge Flashing 1-1/2 in. x 1-1/2 in. x 10 ft. L-90 Bonderized Steel Gray 28-Gauge

Original price $8.62 - Original price $8.62
Original price
$8.62
$8.62 - $8.62
Current price $8.62
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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 305638

Vent Pipe Flashing 1-1/2 in. Galvanized Steel with FHA Base 26-Gauge

Original price $17.57 - Original price $17.57
Original price
$17.57
$17.57 - $17.57
Current price $17.57
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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 972651

Drip Edge Flashing 3 in. x 10 ft. Vinyl White 23-Gauge

Original price $8.38 - Original price $8.38
Original price
$8.38
$8.38 - $8.38
Current price $8.38
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About This Product Give your roof maximum protection against run-off with drip edge flashing. Drip edge flashing can be used for new construction ...

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SKU 312888

Step Flashing 2 in. Metal Standard 26-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 Manufactured by American Metal Products, a pioneer in the development and simplification of effective venting products since 19...

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SKU 654109

Step Flashing 1-1/2 in. Metal Standard 26-Gauge

Original price $9.58 - Original price $9.58
Original price
$9.58
$9.58 - $9.58
Current price $9.58
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About This Product Manufactured by American Metal Products, a pioneer in the development and simplification of effective venting products since 19...

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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.