Semco Galvanized Large Pitch Roof Jack, 5 in. Mill Finish - image 1

Semco Galvanized Large Pitch Roof Jack, 5 in. Mill Finish

Regular price $65.75

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Semco Galvanized Large Pitch Roof Jack, 5 in. Mill Finish


The Semco Galvanized Large Pitch Roof Jack is a non-tapered, uncapped pipe flashing for standard pitch roofs, here in a 5 in. diameter with mill finish. Diameters are measured from the top of the stack. Sold as a single piece, it protects vulnerable roof penetrations around vent stacks.


Key Features:

  • Rust Resistant: Made from rust resistant galvanized materials for long service life.
  • Standard Pitch Fit: Non-tapered design suits standard pitch roofs.
  • No Cap Design: Ships with no cap for vent stack applications.
  • Protects Penetrations: Protects vulnerable roof penetrations from water intrusion.
  • Top-of-Stack Sizing: 5 in. diameter is measured from the top of the stack.

Specifications Table:

Specification Details
Brand Semco
Sell unit 1 piece, 5 in. diameter
Product line Semco Non Tapered Roof Jacks
Available colors Mill
Available sizes 5 in. (line available in diameters 4 in. to 24 in.)
Material Galvanized steel
Finish / texture Mill
Dimensions 5 in. diameter, measured from the top of the stack
Intended use Pipe flashing / vent stack protection on standard pitch roofs

Fit and Compatibility:

Fits standard pitch roofs around vent stacks; the larger Semco line covers diameters from 4 in. to 24 in. Confirm the pipe's top-of-stack diameter matches the jack size before ordering.


Frequently Asked Questions (FAQ):

Q: What size is this jack?
A: 5 in. diameter, measured from the top of the stack; the Semco line ranges from 4 in. to 24 in.


Q: Does it have a cap?
A: No, this is a non-tapered roof jack with no cap, intended for vent stack applications.


Q: What is it made of?
A: Rust resistant galvanized material with a mill finish.


Q: What roofs does it fit?
A: Standard pitch roofs; measure the pipe diameter at the top of the stack and match it to the jack size.


Q: How is it sold?
A: One piece per order.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

Size the jack to the vent pipe's top-of-stack diameter and keep the collar plumb so water sheds around the penetration. On metal roofs or steep pitches, a tapered or lead alternative may suit better, but for standard pitch shingle roofs this non-tapered galvanized jack is a dependable, budget-friendly choice.

Roof penetration flashing must be installed with proper sealing and fastening; use roof staging or fall protection and follow local building codes.


Add the Semco 5 in. Galvanized Large Pitch Roof Jack to your order for dependable vent pipe protection.

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Subject to Approval & Availability
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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