The 636 Steel Roof Cap Black is a durable, weather‑resistant exhaust termination solution designed for use with 3‑inch or 4‑inch round duct systems. Built from heavy‑gauge steel and finished with a protective black coating, this roof cap ensures long-term performance and reliable airflow for residential and light‑commercial ventilation systems. Its multi‑size compatibility makes it ideal for installers who need a flexible, dependable roof termination option.
Key Features
Heavy‑Duty Steel Construction – Provides strength, stability, and resistance to outdoor conditions.
Protective Black Finish – Helps prevent corrosion and blends well with most roofing materials.
Dual‑Size Duct Compatibility – Designed to accommodate both 3‑inch and 4‑inch round duct systems.
Efficient Exhaust Design – Supports proper ventilation for fans, appliances, and air‑moving equipment.
Weather‑Resistant Structure – Engineered to withstand wind, rain, and temperature variations.
Reliable Performance – Offers consistent airflow while helping protect duct systems from backdraft and debris entry.
Common Applications
Bathroom exhaust fan venting
Kitchen or utility room ventilation systems
Dryer venting where allowed by local code
General-purpose round duct exhaust terminations
Replacement roof caps in existing duct systems
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