OATEY
OATEY 11879 Roof Vent Flashing 4in hvac control
Rectangular steel base with rubber collar fits a 4 in pipe on pitched roofs up to 40 degrees
- Fits 4 in pipe vents with rubber collar seal
- 29 ga steel base resists corrosion on pitched roofs
- IAPMO UPC and NES 653 listed for code compliance
- UV protected rubber extends outdoor service life
- 15 in square base covers standard roof openings
4 Inch Steel Roof Vent Flashing
This Oatey 11879 flashing fits a single 4 inch vent pipe on pitched roofs up to 40 degrees. The 15 by 15 inch rectangular steel base uses 29 gauge material with a rubber collar and UV protected seal. It meets IAPMO UPC and NES 653 standards for plumbing vent installations.
Fastened Directly To Roof Deck
Installers nail or screw the flat steel base to the deck before laying shingles or membrane around it. The pre formed rubber collar stretches over the pipe to create a watertight seal. Common issues include tearing the collar on sharp pipe edges or leaving gaps if the roof angle exceeds the rated 40 degree limit.
Pitched Roof Pipe Penetrations
Suits roofers and HVAC contractors sealing a 4 inch vent through a sloped roof. Builders working on flat roofs or needing to flash multiple pipes from one base should look at a different product. The fixed 4 inch sizing also means it cannot adapt to larger or smaller pipe diameters.
Highlights
- Fits 4 in pipe vents with rubber collar seal
- 29 ga steel base resists corrosion on pitched roofs
- IAPMO UPC and NES 653 listed for code compliance
- UV protected rubber extends outdoor service life
- 15 in square base covers standard roof openings
Specifications
| Brand | OATEY |
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Questions about this item
How can I verify the flashing is sealing correctly after I install it on a 40-degree pitched roof?
After installation, run water over the rubber collar and base; no moisture should appear around the 4 in pipe penetration or the 15 in steel base edges.
What components come with the OATEY 11879 and what must I supply myself?
The box contains the 15 in by 15 in 29 ga steel base with integrated rubber collar; you must provide roofing nails or screws, sealant compatible with rubber, and the 4 in vent pipe.
The specs list IAPMO UPC and NES 653 — which version should I choose for a standard residential roof vent?
The single model 11879 meets both IAPMO UPC and NES 653, so the one listed version covers standard residential 4 in pipe vent applications.
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