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Manufacturer Varies by Location Aluminum Pipe Flashing with Elastomeric Collar – ANC Series, Fits 1"–3" or 3"–4" Pipes, Up to 40° Pitch, Mill or Brown
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Manufacturer Varies by Location Aluminum Pipe Flashing with Elastomeric Collar – ANC Series, Fits 1"–3" or 3"–4" Pipes, Up to 40° Pitch, Mill or Brown
ANC Series aluminum base pipe flashings with a premium elastomeric collar for sealing plumbing vent penetrations on shingle roofs. The base is commercially pure aluminum and the flashing fits roofs up to a 40° pitch. Available in 1"–3" and 3"–4" pipe openings in mill or brown, sold individually.
Key Features:
- Aluminum base: Commercially pure aluminum base for durable roof penetration flashing.
- Elastomeric collar: Premium elastomeric collar seals tightly around the pipe.
- Steep-pitch capable: Fits roof pitches up to 40°.
- Pipe size options: Available for 1"–3" and 3"–4" pipe diameters.
- Color choices: Offered in mill aluminum and brown to blend with the roof.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Manufacturer Varies by Location |
| Sell unit | 1 piece |
| Product line | ANC Series – Aluminum Base Roof Flashings |
| Available colors | Mill, Brown |
| Available sizes | 1"–3" pipe; 3"–4" pipe |
| Material | Commercially pure aluminum base |
| Collar | Premium elastomeric collar |
| Pitch rating | Fits up to 40° roof pitch |
| Intended use | Flashing plumbing vent pipe penetrations on pitched roofs |
Fit and Compatibility:
Installs around plumbing vent pipes on shingle roofing systems, compatible with roof pitches up to 40°. Choose the collar size range matching the vent pipe diameter; shingle fasteners and sealant are sold separately.
Frequently Asked Questions (FAQ):
Q: What pipe sizes does it fit?
A: Variants are available for 1"–3" and 3"–4" pipe diameters.
Q: What roof pitch does it accommodate?
A: The flashing fits roof pitches up to 40°.
Q: What material is the base made of?
A: The base is commercially pure aluminum.
Q: How does it seal around the pipe?
A: A premium elastomeric collar flexes to seal around the vent pipe.
Q: What colors are available?
A: Mill aluminum and brown finishes are available.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Match the collar opening to your vent pipe size—the 1"–3" unit covers most residential vents, while the 3"–4" version handles larger stacks. Slide the flashing down over the pipe before the final shingle courses so the base tucks under the uphill shingles and laps over those below. Choose brown when the vent is visible from the street to blend with darker shingles.
Work from a ladder or roof safely with fall protection, and avoid stepping directly on the aluminum base during installation.
Order ANC Series Aluminum Pipe Flashing to seal vent penetrations reliably on your next roof.
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