FlashCo 1-1/2 in. Plumbers Flashing with Galvanized Cone, 22 x 21 in. Large Base, Steel

This FlashCo plumbers flashing seals vent pipe penetrations with a 1-1/2 in. galvanized cone on a 22 in. x 21 in. large base. Made of steel, it is sold as a single piece and installs under shingles around plumbing stacks. Pair it with compatible pipe boots and standard roofing fasteners.

Key Features:

• Galvanized cone: The 1-1/2 in. cone is galvanized for corrosion resistance at the pipe penetration.
• Large base: The 22 in. x 21 in. base provides generous coverage for the penetration flange.
• Steel construction: Steel material offers durable performance on asphalt and other sloped roofs.
• Single-piece unit: Sold per piece, one flashing per sell unit.
• Lightweight: Item weight is approximately 1 lb, easy to handle on the roof.

Specifications Table:

Fit and Compatibility:

Designed for standard plumbing vent stacks with a 1-1/2 in. pipe size; install under roofing shingles per flashing practice. Sold as a single piece with no additional hardware included.

Frequently Asked Questions (FAQ):

Q: What pipe size does this flashing fit?
A: It is sized for a 1-1/2 in. vent pipe, with a galvanized cone formed to that diameter.

Q: What are the base dimensions?
A: The base measures 22 in. x 21 in., providing large coverage around the penetration.

Q: What is it made of?
A: The flashing is steel, with a galvanized cone for corrosion resistance.

Q: How is it sold?
A: It is sold as a single piece; order one flashing per vent penetration.

Q: How is it installed?
A: Install it in the shingle courses so the base laps under the uphill courses and over the downhill shingles, per standard flashing practice.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Match the cone size to the actual vent pipe diameter before ordering; an oversized cone can be field-tightened but an undersized one cannot. On re-roofs, replace old pipe flashings rather than reusing them, since the rubber or cone seal is a common leak point. Keep the uphill flange lapped under shingles to shed water over, not under, the base.

Metal flashing edges are sharp; wear cut-resistant gloves and follow ladder and roof fall-safety practices during installation.

Order the FlashCo 1-1/2 in. galvanized plumbers flashing today to seal your vent pipe penetrations.