ACM Aluminum Code Cap Base, 4 in. to 10 in., Regular or Shake Profile, Mill Finish

$207.00

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ACM Aluminum Code Cap Base, 4 in. to 10 in., Regular or Shake Profile, Mill Finish

This ACM Aluminum Code Cap Base is the mounting base for ACM code cap exhaust vents, available in 4, 8 and 10 inch sizes plus 4 inch oval horizontal and oval vertical styles, in Regular or Shake profiles with a mill finish. Sold individually as one piece. Pair it with the matching ACM code cap top.

Key Features:

  • Vent base: Forms the mounting base for ACM Aluminum Code Cap exhaust vents.
  • Multiple sizes: Available in 4, 8 and 10 inch sizes and 4 inch oval configurations.
  • Two profiles: Regular or Shake profile options to suit the roof covering.
  • Oval options: 4 inch oval horizontal and oval vertical bases available in Shake profile.
  • Mill finish: Aluminum construction with a mill finish.

Specifications Table:

Specification Details
Brand ACM
Sell unit 1 piece
Product line Aluminum Code Cap Base
Available colors ['Regular Mill', 'Shake Mill']
Available sizes ['4 in. Regular', '6 in. Regular', '8 in. Regular', '10 in. Regular', '4 in. Oval Horizontal Regular', '4 in. Shake', '8 in. Shake', '10 in. Shake', '4 in. Oval Horizontal Shake', '4 in. Oval Vertical Shake']
Material Aluminum
Finish / texture Mill
Intended use Roof exhaust vent base
Category Roof Exhaust Vent Bases

Fit and Compatibility:

Designed to pair with ACM Aluminum Code Cap Tops and Assemblies in matching sizes and profiles. Cap tops are sold separately.

Frequently Asked Questions (FAQ):

Q: What sizes and styles are available?
A: Ten variants: 4, 6, 8 and 10 inch sizes in Regular or Shake mill profiles, plus 4 inch oval horizontal and oval vertical bases.

Q: Does it include the cap top?
A: No, this is the base only; the matching ACM code cap top is sold separately, or choose the complete assembly instead.

Q: What material is it?
A: Aluminum with a mill finish.

Q: When would I use an oval base?
A: Oval horizontal and vertical 4 inch bases suit applications where an oval opening fits the duct or roof detail better than round.

Q: How many do I need?
A: One base per exhaust vent opening.

Expert Verdict — Reviewed by the SuperArbor Pro Desk

Use this base when you need to replace or stage a base and top separately; otherwise the complete code cap assembly is simpler. Match profile and size to the existing cap so the two pieces seat properly. The 10 inch sizes cover larger duct applications that smaller caps cannot serve.

Ensure the base is properly sealed and flashed at the roof opening to prevent water intrusion.

Order the ACM Aluminum Code Cap Base in the size and profile that matches your exhaust vent.

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All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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