Imperial Mfg Group Usa Inc GV1379 Storm Collar 8 in

Product Description

The IMPERIAL MFG GROUP USA INC GV1379 is an 8-inch galvanized storm collar designed to seal the gap between a vent pipe and a roof penetration. It prevents water intrusion at the roofline, protecting the structure from moisture damage and maintaining the integrity of the venting system. Fabricated from galvanized steel, this collar resists rust and corrosion in exposed outdoor conditions. HVAC technicians, roofers, and plumbers install this component during new construction and replacement service calls on residential and light commercial venting systems.

This storm collar is used wherever a vent pipe passes through a roof deck, including applications for B-vent gas appliance flues, direct-vent systems, water heater exhausts, and similar round pipe penetrations. It seats over the vent pipe and is typically used in conjunction with a roof flashing. The 8-inch diameter fits standard 8-inch vent pipe outside diameters. It is sold in packages of 6 units, making it practical for contractors stocking multiple jobs.

Key Features

• 8-inch diameter fits standard 8-inch round vent pipe
• Galvanized steel construction for corrosion resistance in exterior applications
• Seals the roofline gap between vent pipe and flashing to prevent water intrusion
• Packaged in quantities of 6 for contractor convenience
• Suitable for residential and light commercial venting installations

Compatibility

Designed as an OEM-style replacement and new-installation storm collar for 8-inch round vent pipe applications in residential and light commercial roofing and venting systems.

Installation Notes

Storm collars are typically installed by HVAC technicians or roofers as part of a vented appliance or exhaust system penetration. The collar should be positioned snugly over the vent pipe above the flashing cone and secured with a draw band or sheet metal screw, then sealed with a compatible high-temperature silicone or roofing sealant around the upper edge. Always verify the vent pipe diameter before installation to ensure a proper fit. Follow local building codes and NFPA 54 or applicable standards for venting clearances and materials.