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Rectangular steel base with rubber collar for 3 to 4 inch pipe vent

OATEY

OATEY 11877 Roof Vent Flashing 3in to 4in hvac control

SKU CH-MQYW-TV76F

Steel roof-vent flashing with rubber collar fits 3 in to 4 in pipes on pitched roofs up to 40 degrees

  • Fits 3 in to 4 in pipe vents for versatile installation
  • 15 in by 12 in steel base covers large roof openings securely
  • 28 ga steel with rubber collar resists weather and UV exposure
  • IAPMO UPC and NES 653 listed for code compliant use
  • All Flash No Calk design speeds up roof vent flashing jobs

OATEY 11877 Roof Vent Flashing

The OATEY 11877 is a steel roof vent flashing designed for pipe vents on pitched roofs. It fits pipe diameters from 3 inches to 4 inches and uses a rubber collar for sealing. The rectangular base measures 15 inches by 12 inches and is made from 28-gauge steel. It meets IAPMO UPC and NES 653 standards.

Suited for residential roof penetrations

This flashing suits installers sealing a single pipe vent on a pitched roof with a 40-degree angle. The all-flash no-calk design simplifies installation without separate sealant. Builders needing to flash multiple pipes, flat roofs, or pipe sizes outside the 3-to-4-inch range should look at other products. It is not intended for non-roof applications.

Handles 3-to-4-inch pipes on 40-degree slopes

The unit comfortably handles one pipe vent within the stated diameter range on the specified roof pitch. UV-protected rubber materials resist weather degradation over time. Headroom runs out when the roof angle differs significantly from 40 degrees or when the pipe diameter exceeds 4 inches. The fixed base dimensions also limit flexibility for non-standard openings.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 76% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameOATEY

Questions about this item

What pipe sizes does the OATEY 11877 flashing fit?

The OATEY 11877 flashing accommodates pipe diameters from 3 in to 4 in, using a rubber collar that seals around the vent pipe.

Can this flashing be installed on a roof with a 40-degree pitch?

Yes, the flashing is rated for roof angles up to 40 degrees, making it suitable for steeply pitched roofs.

How do I confirm the flashing meets code after installation?

The product complies with IAPMO UPC and NES 653 standards, so a building inspector can verify the installation against those listings.

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