Diversitech S4RVSC Storm Collar 4 Inches

Product Description

The DIVERSITECH S4RVSC is a 4-inch storm collar designed to seal the point where a vent pipe or flue penetrates a roof surface. It prevents water infiltration around the pipe opening, protecting the surrounding roof deck and interior structure from moisture damage. Licensed HVAC technicians and roofers install this component as part of a complete venting system on residential and light commercial applications. The collar fits over the vent pipe and is secured against the roof surface to form a weather-tight barrier.

The S4RVSC is used where a 4-inch vent pipe, B-vent, or flue exits through a roof. Typical installations include gas furnace flues, water heater vents, and similar single-wall or double-wall vent systems that require a finished, weatherproof roof penetration. It is suited for both new construction and retrofit service calls where an existing collar has deteriorated or was never properly installed.

Key Features

• 4-inch nominal pipe size for precise fit on standard 4-inch vent and flue pipe
• Designed to block wind-driven rain and debris from entering around roof penetrations
• Suitable for use with B-vent and single-wall vent pipe applications
• Compatible with both new construction installs and retrofit replacements

Compatibility

Designed as an OEM-style replacement storm collar for 4-inch residential and light commercial vent pipe roof penetrations.

Installation Notes

Installation is typically performed by a licensed HVAC technician or qualified roofer. Shut down the connected appliance and allow any flue components to cool before working on the venting system. The collar should be positioned over the pipe and sealed to the roof surface using an appropriate high-temperature sealant or roofing caulk per local building code requirements. Follow IFGC guidelines for proper vent termination and flashing requirements when completing the installation.