FLAMCO Prebent Step Flashing 4 in. x 4 in. x 7 in. or 8 in., 100-Count Box, Mill Finish

Flamco prebent step flashing protects roofs where the roof plane meets walls, chimneys, skylights, and dormers. Each box contains 100 pieces in 4 in. x 4 in. x 7 in. or 4 in. x 4 in. x 8 in. size with a mill finish. The prebent design saves bending time on the roof and weathers out cleanly with each shingle course.

Key Features:

• Prebent profile: Prebent right-angle profile installs faster than field-bent flashing.
• Weather protection: Adds a protective layer against adverse weather conditions at roof-wall transitions.
• Versatile applications: Ideal for weatherproofing around chimneys, skylights, dormers, and wall-to-roof intersections.
• Easy to work: The material is easy to bend, cut, and shape for custom fitting.
• 100-piece box: Sold 100 pieces per box for full flashing runs.
• Two lengths: Available in 7 in. and 8 in. leg lengths to match coursing.

Specifications Table:

Coverage & How Much You Need:

Each box contains 100 pieces. Step flashing is installed one piece per shingle course, so 100 pieces will flash approximately 100 courses; measure the run length against your shingle exposure to determine boxes needed.

Fit and Compatibility:

Use under shingle courses at roof-to-wall intersections, chimneys, skylights, and dormers. Note: the item title and item code reference galvanized steel while the manufacturer description states rust resistant aluminum; verify the material before ordering.

Frequently Asked Questions (FAQ):

Q: How many pieces come in a box?
A: Each box contains 100 prebent step flashing pieces.

Q: What sizes are available?
A: Two sizes are offered: 4 in. x 4 in. x 7 in. and 4 in. x 4 in. x 8 in.

Q: What is the material?
A: The manufacturer description states it is made of rust resistant aluminum that is easy to bend, cut, and shape; the title references galvanized, so confirm the material when ordering.

Q: How many pieces do I need?
A: Plan on one piece per shingle course along the flashing run, then divide the number of courses by 100 for boxes.

Q: Can I adjust the pieces on site?
A: Yes, the material is easy to bend, cut, and shape for fitting around details.

Q: Where is this flashing used?
A: It is ideal for chimneys, skylights, dormers, and wall-to-roof applications.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Prebent step flashing eliminates field bending and keeps the bend angle consistent along the run, which shows up in neater shingle courses. Install each piece lapped by the course above and with the vertical leg behind the wall’s weather-resistive barrier or counterflashing. Keep aluminum flashing away from direct contact with masonry containing corrosive mortar additives, or use isolation as recommended for the substrate.

Flashing edges are sharp; wear cut-resistant gloves and eye protection when cutting and handling flashing pieces.

Stock up on Flamco prebent step flashing, 100 pieces per box, for your next roof-to-wall job.