Z-flex ZF-2SVSADJF03 Adjustable Roof Flashing 3 Inch

Product Description

The Z-FLEX ZF-2SVSADJF03 is an adjustable roof flashing designed for 3-inch venting systems and compatible with roof pitches ranging from 0/12 to 6/12. Part of the AquaStar venting line, this flashing creates a weather-tight seal where a vent pipe penetrates the roofline. It is used in residential and light commercial applications to prevent water intrusion at the roof deck. Licensed HVAC technicians and plumbers typically install this component as part of a water heater or boiler venting assembly. The adjustable pitch design accommodates a range of roof slopes without requiring separate flashing for each pitch, reducing the number of SKUs a service truck needs to carry.

This flashing is suited for installation on standard sloped roofs with pitches from flat up to 6/12. It is commonly installed on residential properties where a 3-inch single-wall or double-wall vent pipe exits through the roof. The AquaStar designation indicates compatibility within the Z-FLEX AquaStar venting system, making it a straightforward fit for tankless water heater and boiler venting projects that use this product family.

Key Features

• Adjustable pitch range of 0/12 to 6/12 accommodates multiple roof slopes with a single part
• 3-inch pipe diameter sizing for standard residential and light commercial vent installations
• Part of the Z-FLEX AquaStar venting system for consistent component compatibility
• Designed to form a weather-tight seal at the roof penetration point
• Lightweight at under 1 pound, reducing handling difficulty during rooftop installation

Compatibility

Designed for use within the Z-FLEX AquaStar venting system with 3-inch vent pipe applications on roofs with a pitch between 0/12 and 6/12.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with local mechanical codes and the appliance manufacturer's venting instructions. Shut down and allow the venting system to cool before working at the roof penetration. Proper flashing integration with roofing materials is required to maintain a weather-tight seal — follow local roofing standards for underlayment and shingle integration around the flashing base. Always verify that the installed vent pipe diameter matches the flashing opening before final seating.

Technical Specifications

• Pipe Diameter: 3 inches
• Pitch Range: 0/12 to 6/12
• Weight: 0.99 pounds
• UPC: 663053018363

Standard Information

• Brand: Z-FLEX
• Manufacturer Part Number: ZF-2SVSADJF03