---
product_id: 1889812
title: "Broan-NuTone 636 Steel Roof Vent Cap for 3\" and 4\" Round Duct, For Bathroom Ventilation Fans, Black"
brand: "broan-nutone"
price: "351.61 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Broan Nu Tone"
url: https://www.desertcart.tn/products/1889812-broan-nutone-636-steel-roof-vent-cap-for-3-4
store_origin: TN
region: Tunisia
---

# Fits 3" & 4" round ducts Sleek black powder coat finish Steel construction for durability Broan-NuTone 636 Steel Roof Vent Cap for 3" and 4" Round Duct, For Bathroom Ventilation Fans, Black

**Brand:** broan-nutone
**Price:** 351.61 DT
**Availability:** ✅ In Stock

## Summary

> 🏠 Elevate your ventilation game with sleek, durable, and reliable roof protection!

## Quick Answers

- **What is this?** Broan-NuTone 636 Steel Roof Vent Cap for 3" and 4" Round Duct, For Bathroom Ventilation Fans, Black by broan-nutone
- **How much does it cost?** 351.61 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/1889812-broan-nutone-636-steel-roof-vent-cap-for-3-4)

## Best For

- broan-nutone enthusiasts

## Why This Product

- Trusted broan-nutone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Premium steel with black powder coating ensures long-lasting, weather-resistant performance.
- • **Universal Fit:** Seamlessly compatible with both 3" and 4" round ducts for versatile installation.
- • **Effortless Setup:** Designed for quick, hassle-free pitched roof installation—no expert needed.
- • **Smart Protection:** Integrated backdraft damper and bird screen keep your home fresh and pest-free.
- • **Silent Efficiency:** Maximizes bathroom fan airflow while minimizing noise for a peaceful home environment.

## Overview

The Broan-NuTone 636 Steel Roof Vent Cap is a robust, easy-to-install ventilation solution designed for 3" and 4" round ducts. Featuring a durable steel build with a stylish black powder coat, it includes a backdraft damper and bird screen to prevent unwanted airflow and pests. Ideal for bathroom fans, it ensures efficient, quiet ventilation while enhancing your roof's functionality and aesthetic.

## Description

The Broan-NuTone 636 Steel Roof Vent Cap is an easy-to-install vent for ventilation fans (bathroom, rec room, home gym, etc.). This vent cap provides reliable roof top ventilation and features both a back draft damper and bird screen, preventing outside air from entering the home and birds and small animals from entering duct work. Compatible with 3" and 4" ducting. Not suitable for dryer venting or flat roofs.

Review: Perfect Roof Vent Cap for Bathroom Fans - I absolutely love this Broan-NuTone Steel Roof Vent Cap! 🖤 It's amazing for 3" and 4" round ducts, ideal for bathroom ventilation fans. The installation was a breeze - super easy and hassle-free. The sleek black design adds a stylish touch to my roof. Highly recommend this for anyone needing a reliable vent cap! 👌🏼 #BathroomUpgrade #EasyInstallation #HighlyRecommend
Review: A fantastic buy! - The Broan-NuTone 636 Roof Vent Cap is excellent! It fits perfectly on 3" and 4" ducts and provides strong, durable protection against weather. Installation was straightforward, and the black finish looks sleek. Great for bathroom ventilation—no leaks or issues so far. Highly recommend for reliable performance and quality construction. A fantastic buy!

## Features

- HIGH-QUALITY ROOF CAP: Steel roof cap for use with bathroom ventilation fans to maximize the air and sound performance of your bath fan
- RELIABLE: Includes a built-in, backdraft damper and bird screen to provide a dependable roof cap you can rely on
- DURABLE: Constructed of steel with a black powder coat finish to ensure durability and lasting use
- EASY INSTALLATION: Roof cap is designed to fit with either a 3" or 4" round duct to provide a simple pitched roof installation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BQW6LE |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #39,225 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in HVAC Ducting |
| Brand | Broan-NuTone |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (741) |
| Date First Available | January 1, 2008 |
| Fit Type | Universal Fit |
| Global Trade Identification Number | 00026715000609 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.6 pounds |
| Item model number | 636 |
| Manufacturer | Broan-NuTone |
| Manufacturer Part Number | 636 |
| Material | Alloy Steel |
| Model | 636 |
| Number of Pieces | 1 |
| Product Dimensions | 11 x 9.25 x 4.38 inches |
| Shape | Round |
| UPC | 696335226149 026715000609 049403210210 735090814458 |
| Vehicle Service Type | Passenger Car |

## Product Details

- **Brand:** Broan-NuTone
- **Color:** Black
- **Fit Type:** Universal Fit
- **Material:** Alloy Steel
- **Vehicle Service Type:** Passenger Car

## Images

![Broan-NuTone 636 Steel Roof Vent Cap for 3" and 4" Round Duct, For Bathroom Ventilation Fans, Black - Image 1](https://m.media-amazon.com/images/I/61gHCVkGO8L.jpg)
![Broan-NuTone 636 Steel Roof Vent Cap for 3" and 4" Round Duct, For Bathroom Ventilation Fans, Black - Image 2](https://m.media-amazon.com/images/I/61gecajauuL.jpg)
![Broan-NuTone 636 Steel Roof Vent Cap for 3" and 4" Round Duct, For Bathroom Ventilation Fans, Black - Image 3](https://m.media-amazon.com/images/I/71UUWBA8FoL.jpg)

## Questions & Answers

**Q: What is the function of a roof vent cap? Does it keep rain water out of house, or just keep animals out?**
A: It does both keeps rain and animals and bugs out. You have to buy the vent collar separately though. So you can connect your exhaust hose or dryer hose to it because some vents on the roof are just for ventilation in your attic space. Them vents you can’t hook your exhaust too. Proper ventilation is key to saving money in your house. I’m going threw the same problem at the time. Make sure you never just vent your fan to your attic space that’s a no no. Also if your fan is anywhere by water make sure your fan is wired inline with a GFCI it’s just the way to do it. Hope this helps you out

**Q: I have a 12 in wide metal roof and I need to put a vent  to vent out heat from the roof . Would the brown 636 work to do this.**
A: It could probably be made to work, but that's not what this vent cap was intended for.  It has a flap in it that is normally closed, that would have to be removed.  (This vent cap is normally used for a bathroom vent fan that will push the flap open when the fan is running.)  Depending upon the style of metal roof you have, it may be difficult to get this vent cap sealed properly.  This one is designed to have its upper flashing edge under shingles.  If your "12 in wide metal" is in horizontal rows, that may work.  Also, this vent cap is significantly smaller than what it normally used for roof vents.  It will probably take three times as many of these as regular roof vents, to vent a given area of roof.  In short, yes it probably could be used for a roof vent, but it would not be ideal.

**Q: Can the damper get frozen shut in the winter?**
A: It's possible, but not too likely.  And even if it does, when the bath fan is turned on there will probably be enough air leakage that it would thaw the flap in a minute or two.

**Q: pulled flapper,  replaced cheesy strip at front of flap and  added to other three sides with 3/16 thick, 3/8 wide foam weather strip.  is this ok?**
A: Maybe

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Roof Vent Cap for Bathroom Fans
*by P***N on June 20, 2025*

I absolutely love this Broan-NuTone Steel Roof Vent Cap! 🖤 It's amazing for 3" and 4" round ducts, ideal for bathroom ventilation fans. The installation was a breeze - super easy and hassle-free. The sleek black design adds a stylish touch to my roof. Highly recommend this for anyone needing a reliable vent cap! 👌🏼 #BathroomUpgrade #EasyInstallation #HighlyRecommend

### ⭐⭐⭐⭐⭐ A fantastic buy!
*by G***D on April 28, 2025*

The Broan-NuTone 636 Roof Vent Cap is excellent! It fits perfectly on 3" and 4" ducts and provides strong, durable protection against weather. Installation was straightforward, and the black finish looks sleek. Great for bathroom ventilation—no leaks or issues so far. Highly recommend for reliable performance and quality construction. A fantastic buy!

### ⭐⭐⭐⭐⭐ Good quality
*by M***L on October 11, 2025*

Great product cannot complain

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-02-01*