How to Vent a Range Hood Through the Roof or a Side Wall

If you want to get rid of the gases and smoke created in your kitchen and want to vent a range hood through the roof or a side wall without any hassle, then this post is just for you.


In the beginning, I fund it hard too. But then I went through some simple research and easily did the work. I hope this will help you a lot. And you can set the range hood all by yourself in this simple way.

Why Do You Need It

Getting suffocated with gases and odor are a common thing in the kitchen. Do you face the same problem while you cook? Gases and smoke make it difficult to breathe?

Then simply install a range hood in your kitchen to dissipate gases and smoke for sake of safety as well as grease and odors in the kitchen

In this post, I will tell you the easiest way to vent a range hood through the roof or sidewall from my own personal experience.

At the end of this post, I will give you some simple tips too. Those will help you to keep the range hood working properly.
The recommended range load filter has at least 40 CFM of your work place.

Depending on your need to buy a duct of 8 inches for an average 600 CFM units and a 15-inch duct vent would need 1000 CFM units.

Steps to Vent a Range Hood Through The Roof or a Side Wall

If you have decided to not to get suffocated any more, not to have odor and smoke in your kitchen and determined to vent a range hood, then at first decide where you want to vent.

The sidewall or the roof?

Whatever you decide, the process will be the same. Just make sure that the range hood is mounted over the kitchen stove.

So, here are the steps to vent a range hood through the roof or a side wall:

  1. Drill the wall through which you have decided to vent the range hood. Drill it as long as possible to get through the other side of the wall. Even if it does not make the proper hole, yet it will keep a mark, with which you can make the rest of the hole.
  2. Cut the wooden or fiber portion with a jigsaw blade. You will find it easy to cut those portions with this. It is a less time-consuming process too. Do not try to cut the brick portion with the jigsaw. It may not work.
  3. Hammer the brick and cement portion. This portion is quite hard and difficult to break. The hammer will work better in this section. Make the hole through which the other side can be seen.
  4. Use a flexible Duct that you can easily pass through the wall and bend it very easily any way you like. Flexible ducts are easy to use. They can be easily handled and bent anyway you want. They do not have any chances to get rust. The price is also cheaper than the steel one.range-hood-install
  5. Use a Prybar to make space for entering the duct. Using a pry bar will work better as the duct is flexible. You can easily pass the duct through the wall with this.
  6. Connect the exhaust vent on the inner side of the Duct. It will then suck the smoke, gases, and odor from the kitchen and will pass through the duct to the other side of the wall.
  7. Cover the portion of the wall with wood or board through which the duct entered and nail it with a roofing nail so that it does not come out easily.
  8. Fill the gaps between the duct and wall with the help of a caulk gun. It will help to stop air and water to pass through the gaps. Caulk gun also helps to attach the duct with the wall.
  9. Cover everything with wall cement. A hole in the wall will not look good. Use good quality wall cement to cover the whole thing and paint it nicely to look it better.
  10. Connect the roof cap through on the outer side of the duct through which the smoke or gases will get out of the duct. Make sure the roof cap is installed properly so that no rain water or anything else can enter through it.

Tips for venting a range hood

I have have some tips for you to vent a range hood that work nicely and makes your tasks easier too.

So, here are my tips for venting range hood:

  1. Determine the type of hood you need. That will help you to know if you need a duct vent or not. If you need to vent through the side wall and nothing is there on the other side of the wall, then u can simply do the work with a small pipe that will pass through the wall.
  2. Make sure the outlet you are plugging will fulfill the power requirement.range-hood-duct
  3. Make sure the ducts that are running through the wall or roof are smoke and watertight. If the duct is not smoke or water tight, then the purpose of the range hood will be of no use.
  4. To vent a range hood use painted steel duct instead of plastic duct. The plastic duct does last longer.
  5. Insulate your duct work to avoid condensation & leakage. If the duct is not insulated properly then with the temperature of smoke the duct may get expanded or get damaged.
  6. Seal all the joints with an HVAC tape. It will help to keep the joints water and airtight.
  7. Do not use more than 40 feet duct work. From the research, it has been found that using a duct bigger than 40 feet does not work properly.
  8. Do regular cleaning and servicing. To get better performance do the servicing at least once in four months and clean it properly every week.
  9. If the duct needs to be bent, do not bend it more than 30 degrees. It will not work then. In fact, there is a chance of smoke and gases to get stuck and make an explosion


Here are the precautions you need to take for venting a range hood by yourself:

  • Switch off the power before starting doing anything in the kitchen. Otherwise, there may be an accident due to electric dysfunction.
  • Make sure you separate the strips and wires. To avoid electric problems keep them in a different direction or it will catch fire.
  • Make sure the roof cap is installed properly otherwise rain water will enter through it. It is better to use a net on the roof cap so that birds or small animals can not make their nest in it.


Question: How do you vent a range hood on the roof?
Answer: To vent the range hood on the roof, make sure u make the hole in the roof and pass the duct through the roof.

Question: Can I vent a range hood in the attic?
Answer: Yes, You can vent a range hood in the attic by the simple procedure I have told you.

Question: Which is better to vent the range hood the roof or the wall?
Answer: You can do the vent either in the wall or on the roof. Just make sure the duct does not become more than 40 feet.

Question: Can I use a plastic roof cap?
Answer: Plastic roof cap can be used. But as the gas and smoke are coming out from the kitchen, so there is an issue of temperature that might damage the cap.

Final Thought

So, guys, I hope after going through my post you found it really easy to do your work and you have vent a range hood through the roof or a side wall.

I hope you have followed the procedures, precautions and took proper safety measures before working with the range hood to avoid any kind of unwanted situation.

Now If you find my post helpful for your work then please let me know in the comment section below and also if you have any suggestions, query, or if you are willing to share your ideas with me, then, feel free to let me know in the comment section also.

If You really find my post helpful for your work and liked my post then you can also check on with my other posts. I hope those posts will help you too.