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Neverleak Premium Neo-Poly Pipe Flashing, Thermoplastic Base, Sizes 1-1/2 in. to 4 in. and 3 in. to 4 in.
Regular price $8.25Orders start at $399 — combine any items to reach the minimum. Learn more
Neverleak Premium Neo-Poly Pipe Flashing, Thermoplastic Base, Sizes 1-1/2 in. to 4 in. and 3 in. to 4 in.
Neverleak's NEVA CALK Premium Neo-Poly Multi-Fit roof flashing seals pipe penetrations with a premium elastomeric collar and a stiffer thermoplastic base measuring 10-3/4 in. x 14-1/2 in. Two sizes are available: 1-1/2 in. to 4 in. and 3 in. to 4 in. It fits roof pitches up to 40 degrees and carries a twenty-year replacement warranty.
Key Features:
- Multi-fit collar: Premium elastomeric collar fits a range of pipe diameters within each size variant.
- Stiffer base: Stiffer thermoplastic hard base holds its shape on the roof plane.
- Heat rated collar: Collar is rated for 180 degrees F continuous heat.
- Type B vent approved: Approved for use with Type B vents.
- UV and ozone resistant: Excellent weathering, ozone resistance, and improved UV resistance.
- Twenty-year warranty: Backed by a twenty-year replacement warranty.
- Made in USA: Manufactured in the United States.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Neverleak |
| Sell unit | 1 piece |
| Product line | Neverleak Premium Neo-Poly Multi-Fit Roof Flashing (NEVA CALK) |
| Available sizes | ['1-1/2" to 4"', '3" to 4"'] |
| Material | Thermoplastic base with premium elastomeric (neo-poly) collar |
| Dimensions | 10-3/4 in. x 14-1/2 in. base |
| Intended use | Pipe penetration flashing on pitched roofs; approved for Type B vents |
| Coverage per unit | One pipe penetration |
| Wind / fire / impact rating | Approved for Type B Vents |
| Warranty | Twenty year replacement warranty |
| Pack quantity | 12 per carton |
| Assembly | No-caulk multi-fit collar slips over pipe |
| Intended pitch | Fits up to 40 degree roof pitch |
Fit and Compatibility:
Choose the 1-1/2 in. to 4 in. boot for smaller vent pipes or the 3 in. to 4 in. boot for larger pipes; both fit roofs up to 40 degrees pitch. Not for hot-mopped or built-up roof applications.
Frequently Asked Questions (FAQ):
Q: Which pipe sizes does it cover?
A: Two variants: a 1-1/2 in. to 4 in. multi-fit collar and a 3 in. to 4 in. collar.
Q: What is the warranty?
A: The manufacturer offers a twenty-year replacement warranty.
Q: Can it be used on a built-up roof?
A: No, it is not approved for hot-mopped or built-up roof applications.
Q: What roof pitch does it fit?
A: It fits roofs up to 40 degrees pitch.
Q: Is it approved for Type B vents?
A: Yes, it is approved for Type B vents, and the collar is rated at 180 degrees F continuous heat.
Q: What are the base dimensions?
A: The stiffer thermoplastic base measures 10-3/4 in. x 14-1/2 in.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
The neo-poly elastomeric collar with 180 degree F heat rating and Type B vent approval makes this a smart pick for furnace and water heater vent pipes where standard rubber collars can degrade. On re-roofs, replace aged boots proactively since collar cracking is a leading leak source. Do not use it on hot-mopped or built-up roofs; choose a flashing rated for those systems.
Follow the roofing system's flashing details and use caution around hot vent pipes during installation; ensure proper shingle lapping over the base for watertight performance.
Upgrade to the Neverleak Premium Neo-Poly Multi-Fit Pipe Flashing for a heat-rated, Type B vent approved seal.
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