Broan-NuTone 636 roof cap black close-up highlights durable steel and powder coat finish.
Broan-NuTone 636 roof cap installed on pitched roof provides backdraft protection.
Broan-NuTone 636 backdraft damper close-up demonstrates airflow control.
Broan-NuTone 636 bird screen close-up shows protection for the duct.

Broan-NuTone

Broan-NuTone 636 Steel Roof Vent Cap for 3-4 Inch Round Ducts – Black

High-performance tools and home improvement made for confident daily results

$33.14

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Why customers choose TaskHolt Tools

Overview

The Broan-NuTone 636 steel roof vent cap is a practical, durable solution for venting bathrooms, rec rooms, or home gyms. Its black powder-coated finish adds a modern touch while providing lasting protection against the elements. The steel body supports reliable airflow from 3-inch or 4-inch round ducts, and the simple, pitched-roof design makes installation straightforward for many homes. With robust construction and a weather-ready finish, this cap helps maintain your vent system’s performance over time.

What makes it reliable

  • Built-in backdraft damper helps limit outside air from entering the duct path.
  • Bird screen prevents birds, debris, and small animals from nesting in the duct.
  • Durable steel construction with a black powder coat resists rust and wear.
  • Compatible with 3-inch or 4-inch round ducting for flexible installation.

Use cases and benefits

  • Ideal for bathroom ventilation fans on pitched roofs, enabling steady airflow in varying weather.
  • Suitable for rec rooms, home gyms, and other small spaces requiring quiet, reliable exhaust.
  • Offers a visually clean, low-profile vent cap that blends with many exterior styles.

Note: Not suitable for dryer venting or flat roofs. Always follow local building codes and seal joints to prevent leaks and water entry.

FAQ

Q: What duct sizes does the Broan-NuTone 636 support?

A: It fits 3-inch and 4-inch round ducting for bathroom ventilation fans.

Q: Is this vent cap easy to install on a pitched roof?

A: Yes. It is designed for simple pitched-roof installation with standard ducting and basic tools.

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