Steel Roof Cap for 3" - 4" Round Duct w/ Damper & Birdscreen

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SKU: 636
Regular price $23.92

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Customer Reviews

Based on 1 review
James G. (Phoenix, US)

Salesman was supposed to get back to me, my roof is flat...upon opening and reading the inst...they say do not install on a flat roof.

Specification Sheet

Installation Instructions

Broan-NuTone Steel Roof Cap for 3-Inch or 4-Inch Round Duct w/ Damper & Birdscreen, Black

Select the Broan-NuTone 636 Roof Cap to provide reliable rooftop ventilation. Features a black enamel finish and is designed for use with 3 in. or 4 in. round ducts. Includes a built-in back-draft damper, and protective bird screen to prevent small pests from entering duct.


  • For pitched roof installation
  • 25 GA. CRCQ steel, black powder coat paint finish
  • Built-in backdraft damper and bird screen
  • For 3" or 4" round duct