ACM Galvanized Fan Jack, Regular 6 in., Mill Finish Roof Pipe Flashing

The ACM Fan Jack is a galvanized steel regular fan jack for 6 in. pipes, finished in mill galvanized and sold as a single piece. It provides base flashing at roof penetrations such as vent stacks. Use it where a formed galvanized pipe jack is preferred over rubber boots.

Key Features:

• Galvanized steel: Formed in galvanized steel with a mill finish for long-term penetration flashing.
• 6 in. pipe size: Made as a regular fan jack for 6 in. vent pipes.
• Fan design: The fan jack profile provides the pipe base flashing at the roof penetration.
• Single piece: Sold per piece so each penetration can be flashed individually.
• Penetration flashing: Listed for roof boots, roof jacks and pipe base flashing applications.

Specifications Table:

Coverage & How Much You Need:

One fan jack flashes one 6 in. pipe penetration. Count penetrations on the roof plan to determine quantity.

Fit and Compatibility:

Use at penetrations where a galvanized jack suits the roofing system, paired with the roof’s base flashing and sealant practice. Adjacent pipe sizes, pitch ratings and cap/hood accessories are not listed in the sources.

Frequently Asked Questions (FAQ):

Q: What pipe size does it fit?
A: This is a regular fan jack sized for a 6 in. pipe.

Q: What is it made of?
A: Galvanized steel with a mill finish.

Q: How many do I need?
A: One jack per 6 in. pipe penetration on the roof.

Q: Is it sold in packs?
A: No, it is sold per piece.

Q: Does it include a cap or storm collar?
A: The sources do not list a cap, hood or storm collar; only the fan jack piece is described.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Match the jack opening to the actual pipe outside diameter so the fan seats tightly around the stack. Integrate it with the shingle or membrane courses per the roofing manufacturer’s detail so water sheds around the penetration, and seal the top edge appropriately. For smaller or larger stacks, choose a jack sized to that pipe rather than forcing fit.

Exercise caution when cutting and fitting metal jack flashing on the roof, and use fall protection per site safety requirements.

Order the ACM galvanized regular 6 in. Fan Jack to flash your vent pipe penetrations.