Metal-fab MF-5DSC Direct Vent Storm Collar 5 Inch

Product Description

The METAL-FAB MF-5DSC is a direct vent storm collar designed to seal the annular space where a direct vent pipe penetrates a roof deck or exterior wall. It provides a weather-tight barrier against rain, wind-driven moisture, and debris intrusion at the flashing point. Licensed HVAC technicians and plumbers install this component during direct vent appliance venting runs on residential and light commercial systems. The 5-inch designation references the nominal pipe diameter this collar is sized to fit, making it a standard component in properly flashed direct vent installations.

This storm collar is suited for direct vent applications where a concentric or single pipe exits through a roof penetration. It is commonly installed on direct vent furnaces, boilers, and water heaters that terminate through the roof. The collar seats over the vent pipe and against the flashing to close off any gap that would otherwise allow water infiltration into the roof assembly or wall cavity.

Key Features

• Sized for 5-inch nominal direct vent pipe diameter
• Designed to seal roof or wall penetrations on direct vent systems
• Weather-resistant construction to withstand outdoor exposure
• Compatible with standard direct vent flashing and termination kits
• Supports code-compliant vent installations per IFGC requirements

Compatibility

Designed as an OEM-style replacement or new-installation storm collar for 5-inch direct vent pipe systems on residential and light commercial gas appliances.

Installation Notes

Installation is typically performed by a licensed HVAC technician or plumber as part of a complete direct vent system termination. Shut down and lock out the appliance before working on the venting system. The collar should be positioned to overlap the flashing and sealed with an appropriate high-temperature, outdoor-rated sealant to maintain a weatherproof joint. Follow local building codes and IFGC guidelines for vent pipe penetration and termination requirements.