Systemair 79957 Roof Cap 6 Inch Steel Black Bird Screen

Product Description

The SYSTEMAIR 79957 is a steel roof cap designed for exhaust ventilation systems installed on sloped roofs. It ships fully assembled and includes a 0.25-inch discharge screen with bird screen protection, an aluminum backdraft damper with a rubber gasket seal, and a 3-inch duct collar extension. The cap is pre-painted black, making it ready for installation without additional finishing. Licensed HVAC technicians and ventilation contractors install this component as part of residential or light commercial exhaust systems where a weather-tight, bird-resistant roof termination is required.

This roof cap is suited for sloped roof applications where a clean, low-profile exhaust termination is needed. It accommodates duct sizes ranging from 4 to 12 inches, giving installers flexibility across multiple system configurations. The pre-painted black finish blends with common roofing materials. The 6-inch nominal size matches standard round duct runs used in bath exhaust, kitchen ventilation, and whole-house ventilation setups.

Key Features

• Pre-painted black steel construction, ready to install without field finishing
• Includes 0.25-inch discharge screen with bird screen to prevent pest entry
• Aluminum backdraft damper with rubber gasket prevents reverse airflow and weather infiltration
• 3-inch duct collar extension simplifies connection to the duct run
• Compatible with duct sizes from 4 to 12 inches for versatile system use
• Designed specifically for sloped roof installation

Compatibility

Designed as an OEM-style exhaust roof termination for sloped roof ventilation systems accommodating duct diameters from 4 to 12 inches.

Installation Notes

Installation is performed by a licensed HVAC technician or qualified ventilation contractor. The exhaust fan and any associated electrical circuits must be de-energized before beginning work. The roof cap should be flashed and sealed according to local building codes and the roofing manufacturer requirements to prevent water infiltration. Consult applicable mechanical codes for required clearances from roof penetrations.

Technical Specifications

• Nominal Duct Size: 6 inches
• Compatible Duct Size Range: 4 to 12 inches
• Height: 6.375 inches
• Width: 16 inches
• Material: Steel
• Finish: Pre-Painted
• Color: Black
• Discharge Screen: 0.25-inch bird screen
• Backdraft Damper: Aluminum with rubber gasket
• Duct Collar Extension: 3 inches

Standard Information

• Brand: SYSTEMAIR
• Manufacturer Part Number: 79957