Duravent 04SRF B-vent Adjustable Steep Roof Flashing 4 in

Product Description

The DURAVENT 04SRF is an adjustable steep roof flashing designed for use with 4-inch B-vent gas venting systems. It accommodates roof pitches from 6/12 to 12/12, making it suitable for a wide range of residential roof slopes encountered in standard construction. This flashing creates a weather-tight seal at the roof penetration point, keeping moisture out while allowing the vent pipe to pass through cleanly. HVAC technicians and plumbers install this component during new construction or when replacing aging B-vent flashing on existing gas appliance installations.

This flashing is used on residential structures where natural-draft B-vent systems serve gas furnaces, water heaters, boilers, or other atmospheric-vent appliances. The adjustable design eliminates the need to stock multiple pitch-specific flashings, covering the steep-slope range from 6/12 up to 12/12 in a single SKU. It is intended for installation at the point where a 4-inch DVP B-vent pipe exits through a pitched roof deck.

Key Features

• Adjustable pitch range covers 6/12 to 12/12 roof slopes
• Designed for 4-inch B-vent DVP pipe systems
• Single flashing handles steep-slope applications without pitch-specific parts
• Provides weather-tight seal at roof penetration point
• Compatible with DURAVENT DVP B-vent system components

Compatibility

Designed for use with 4-inch DURAVENT DVP B-vent pipe and fittings on residential gas venting systems with steep roof pitches ranging from 6/12 to 12/12.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with NFPA 54 and local mechanical code requirements. Shut down the gas appliance and allow the venting system to cool before beginning roof work. The flashing must be properly integrated with the roofing material to maintain a watertight seal, and all penetration clearances should follow the appliance manufacturer and vent system listing requirements. Do not compress or modify the flashing collar in a way that restricts the vent pipe movement or violates the listed clearances.

Technical Specifications

• Pipe Diameter: 4 inches
• Pitch Range: 6/12 to 12/12
• Vent Type: B-Vent (DVP)
• Application: Steep Roof Flashing

Standard Information

• Brand: DURAVENT
• Manufacturer Part Number: 04SRF