Imperial Mfg Group Usa Inc GV1384 Rainproof Flashing 5 in

Product Description

The IMPERIAL MFG GROUP USA INC GV1384 is a 5-inch galvanized rainproof flashing designed to seal vent pipe penetrations against weather infiltration at the roof line. Built to a 1/4 pitch, it accommodates standard residential roof slopes and provides a watertight collar around the vent stack where it exits the roofing surface. Galvanized steel construction resists corrosion in outdoor and moisture-exposed environments. This flashing is handled by HVAC technicians, plumbers, and roofers during vent stack installation or replacement on residential and light commercial jobs. Each order includes 3 units.

This flashing is suited for use with 5-inch round vent pipes on residential and light commercial rooftop applications. It installs over single-wall or B-vent pipe penetrations on gas appliance venting systems, including furnaces, water heaters, and boilers. The 1/4 pitch profile matches common roof slopes encountered on standard residential construction. It is typically installed as part of a new venting rough-in or when replacing weathered or failed existing flashing around an active vent stack.

Key Features

• 5-inch throat diameter fits standard 5-inch round vent pipe
• 1/4 pitch profile designed for common residential roof slopes
• Galvanized steel construction for corrosion resistance in outdoor installations
• Rainproof design seals roof penetration against water infiltration
• Sold in a pack of 3 units, reducing per-job material runs

Compatibility

Designed as an OEM-style replacement or new-installation flashing for 5-inch round vent pipe penetrations on residential and light commercial rooftop venting systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician, plumber, or qualified roofer. Shut off the connected appliance and allow the vent system to cool before beginning work at the roof penetration. Flash and seal per local building code requirements and the appliance manufacturer venting instructions, referencing the IFGC for gas appliance vent terminations. Do not compress or deform the flashing collar during installation, as distortion can compromise the weather seal.