How to Keep Room Above Garage Cool

If you’re looking for a way to keep your garage cool in the summer, you may be wondering if there’s a way to use the space above it. While most people think that this is not possible, there are actually several ways to make it work. This article will explore how to keep room above garage cool to ensure cooling down the space above your garage. Read on to learn more!

How to Keep Room Above Garage Cool

The garage is one of the most neglected parts of the home in summer. People use it to store their vehicles and other belongings but don’t think about how to keep it cool. It can be a real problem in the summer when the temperature rises. The garage becomes like an oven, and the heat radiates up into the living space above it. This can make your home incredibly uncomfortable and can even increase your energy bill as you try to run the air conditioning all day long.

Why Is the Room Above Your Garage Hot?

Summertime temperatures can be unbearable, and if you’re like many homeowners, the room above your garage is one of the hottest spots in your house. While there are several reasons why this might be the case, here are three of the most common:

1. Lack of Insulation

The attic is one of the areas in a home that is most often neglected when it comes to insulation. As a result, all of the heat from the sun and your home’s appliances can easily radiate up into space.

2. Poor Ventilation

If your attic doesn’t have proper ventilation, it can become extremely hot and stuffy during the summer months. This will cause the warm air to accumulate in the attic, flowing down into the room above the garage.

3. Heat Gain From the Garage

If your garage is attached to your home, it will likely be one of the warmest rooms in your house. This is because the garage is often exposed to the sun, and it can be difficult to keep the space cool.

Needed Materials:

Install Vents in the Garage Ceiling

Insulation Material:

To keep the room above your garage cool, you will need to start with insulation. This is crucial for preventing heat from transferring between the garage and living space. You can use traditional types of insulation such as fiberglass batts or loose-fill cellulose, but these may not be enough to effectively keep out the heat. Consider investing in higher-quality materials like spray foam insulation or radiant barrier insulation to keep your room above the garage cool.

Ventilation Equipment:

Proper ventilation is also essential for keeping your attic space cool. Attic fans, soffit vents, and ridge vents can help circulate air and keep it from becoming too hot. You may also want to consider adding an exhaust fan or solar-powered vent to increase airflow and prevent heat buildup.

Reflective Material:

Reflective material can help keep heat out of the attic and, in turn, the room above your garage. Consider using reflective foil or radiant barriers to deflect heat and keep the space cooler.

Safety Precautions:

Before attempting to insulate or ventilate your attic space, be sure to take the necessary safety precautions such as:

  • Wearing proper protective gear, including gloves and a mask
  • Using caution when working on the roof or in tight spaces
  • Turning off power to any electrical outlets before installing insulation or ventilation equipment
  • Following all manufacturer instructions and safety guidelines for any equipment or materials used. 

A Detailed Guide on How to Keep Room Above Garage Cool

Way 1: Increase Airflow

Increasing airflow will allow the cooler air to circulate through the room and helps to keep the temperature down. There are a few ways to increase the airflow in your room.

One way to keep the room above your garage cool is to increase the airflow. This can be done in a few ways:

• Install an attic fan – An attic fan can help to circulate the air in your attic, and it will also draw the hot air out of the space. This can be a great way to keep your garage cool in the summer.

• Install vents or fans in the garage ceiling – this will allow the hot air to escape and help keep the room above the garage cool.

• Install a window unit – A window unit can help cool the room by bringing in cooler air from outside.

Way 2: Insulating the Ceiling

Insulation is a material installed in walls, ceilings, and floors to help reduce heat transfer. In the summertime, insulation helps keep your home cooler by preventing the hot air from outside from entering your home. There are many different types of insulation available on the market, so you can find one that best suits your needs.

If you have an unfinished room above your garage, you can install insulation in the ceiling to help keep it cool in the summer. Start by measuring the height and width of the room. You will need enough insulation to cover the entire ceiling. Then, purchase insulation at a home improvement store or online, and follow the instructions for installing it.

In addition to insulating the ceiling, you can install window treatments to help keep the room cool. Shutters, blinds, and curtains can all help block out the sun’s heat. Choose a light-colored fabric for your window treatments to reflect the sun’s heat.

Way 3: Hang Curtains

One way to keep the room above your garage cool is to hang curtains. This will help to keep the sun out and the cool air in. Plus, it will give you some privacy if you need it. Just make sure that the curtains are thick enough to block out the light and heat. You may also consider using a curtain liner to help with this.

If you don’t have any curtains, you can easily make your own by using blackout fabric or sheets. Just hang them from the ceiling or rafters in your garage, and you’re good to go.

Way 4: Make Sure There Is No Source of Heat in the Garage

If you notice that your room above the garage is consistently too warm, the first thing you need to do is check and see if there is any heat source in the garage. This could be something as simple as a space heater left on or an exhaust pipe from a car. If you find a source of heat coming from the garage, you will need to take steps to correct it. This could mean anything from moving the space heater to another part of the house to getting a new exhaust system for your car.

Curtains Thick Enough to Block Out the Light

If you can’t seem to find any heat source in the garage, the next step is to make sure that the insulation in your attic is up to par. You may want to consider hiring a professional to come and assess your attic and make any necessary repairs. Poor insulation can lead to heat loss and make it difficult to keep your room cool.

If you’ve checked for both heat sources and made sure your insulation is up to par, and you’re still having problems cooling the room, the last step is to buy some window air conditioners. Window air conditioners are a great way to quickly cool off a small space, and they are relatively affordable. Just make sure that you measure the window before purchasing an air conditioner to get one that will fit properly.

Hopefully, these ways how to keep room above garage cool will help you keep your room above the garage cool this summer!

Things to Remember:

  1. Proper insulation and ventilation are key to keeping your room above the garage cool.
  2. Ventilation equipment such as fans and vents can help circulate air and prevent heat buildup in the attic space.
  3. Reflective materials like foil or radiant barriers can also deflect heat and keep the space cooler.
  4. Always take necessary safety precautions before attempting any insulation or ventilation work.
  5. Curtains and window treatments can also help block out the sun’s heat and keep the room cooler.
  6. Check for any potential sources of heat in the garage, such as space heaters or exhaust pipes, and address them accordingly.
  7. Hire a professional to assess your attic insulation if needed.
  8. Consider using window air conditioners for quick cooling in small spaces.
  9. Regular maintenance and upkeep of your attic space can also help keep it cooler in the long run.
  10. Don’t forget to enjoy your newly cooled room above the garage during those hot summer months!  So, these were some ways on how to keep a room cool above a garage. By following these tips, you can ensure a comfortable living space above your garage, even during the hottest months of the year. Remember to always prioritize safety and follow manufacturer instructions when working with insulation or ventilation equipment. Stay cool! 

Do You Need to Get Help From a Professional?

If you are unable to take care of the issue on your own, it may be necessary to seek help from a professional. This could include hiring an HVAC technician to assess your attic’s ventilation or insulation needs, or consulting with a contractor about installing an attic fan or improving your garage’s heat resistance.

It is important to address any issues with the room above your garage being too warm, as it can lead to discomfort and even potential damage to your home. With the right strategies in place, you can keep this room cool and enjoyable all year round. 

So, don’t hesitate to take action if you are having trouble keeping your garage room cool. After all, a comfortable home is key to a happy and healthy lifestyle! Keep these tips in mind and enjoy a cool and comfortable room above your garage.  Happy summer!

How Much Could It Cost?

The cost of keeping your room above the garage cool will vary depending on the methods you choose and any necessary professional assistance. For example, installing an attic fan or window air conditioner may have upfront costs but can save money in the long run by reducing energy usage.

Measure the Window

Insulating the ceiling or adding window treatments may also have initial costs, but can ultimately lead to savings on your energy bills by keeping the room cooler. It is important to consider the long-term benefits and costs when deciding on a solution for cooling your garage room.

In addition, you may also consider investing in energy-efficient solutions such as solar-powered attic fans or insulated window treatments to further reduce energy usage and save money in the long run. 

Overall, the cost will vary based on individual needs and preferences, but the benefits of a cool and comfortable room are priceless.  So, don’t hesitate to take steps to keep your room above the garage cool this summer. Your comfort and well-being are worth it! 

Additional Tips and Warnings:


• Use light-colored curtains and window treatments to reflect the sun’s heat.

• Install insulation in the ceiling of your room above the garage to prevent heat transfer.

• Increase airflow by installing an attic fan or vents/fans in the garage ceiling.

• Use window air conditioners if necessary.

• Consider using window treatments or curtains made of blackout fabric or sheets to block out the sun’s heat.


• Be cautious when working in your garage during hot temperatures, as it can be dangerous to overheat.

• Do not attempt any electrical or insulation work if you are not familiar with the proper safety procedures. It is best to hire a professional if you are unsure about any steps in the process.

• Make sure to regularly check for any sources of heat in your garage, such as space heaters or exhaust pipes, and address them immediately.  Failure to do so can result in a constant struggle to keep your room cool.

Frequently Asked Questions:

Q: Can I Use a Regular Fan to Increase Airflow in the Room Above My Garage?

A: Yes, you can use a regular fan to help increase airflow. However, it may not be as effective as an attic fan or vents specifically designed for attics. You may need to use multiple fans and strategically place them to achieve desired results. It can also be helpful to open windows or doors to allow for cross-ventilation. The key is to create a continuous flow of air in and out of the room.

Q: How Do I Know What Type of Insulation to Use?

A: The type of insulation you use will depend on your budget, climate, and personal preferences. Some commonly used types include fiberglass, cellulose, and spray foam insulation. It’s best to do some research or consult with a professional to determine the best type for your specific situation. You may also want to consider the R-value of insulation, which measures its ability to resist heat transfer. A higher R-value typically indicates better insulation.

Q: Can I Use Shades or Blinds Instead of Curtains to Keep Out Heat?

A: Yes, you can use shades or blinds instead of curtains. The key is to choose ones that are thick enough to block out heat and light. You may also want to consider installing them outside the window for maximum effectiveness. The downside to using shades or blinds is that they may not provide as much privacy as curtains.

Q: Will Hanging Curtains in the Garage Help Keep the Room Above Cool?

A: It may help to some extent, as curtains can block out heat and light. However, they may not be as effective as other methods such as insulation or installing an air conditioning unit. It’s best to use a combination of methods to achieve the desired results. It’s also important to regularly check and replace any worn or damaged curtains to ensure maximum efficiency.  Overall, it’s best to address the root cause of heat in the garage rather than relying solely on curtains.

Q: Should I Hire a Professional to Help with Insulation and Ventilation?

A: It’s always a good idea to consult with a professional if you are unsure about the best methods for keeping your room above the garage cool. They can assess your specific situation and offer personalized recommendations for insulation, ventilation, and other cooling methods. Professionals can also ensure proper installation to maximize efficiency.


If you have a room above your garage and are looking for ways to keep it cool, we have some tips. Follow these simple ways how to keep room above garage cool to help reduce the amount of heat that enters your attic space and keep your room comfortable all summer long. From proper insulation and window treatments to eliminating any heat sources and using air conditioning units, there are multiple solutions you can try. Remember to regularly check and maintain these methods for optimal results. Stay cool!

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Rick Kelly

I am Rick. I grew up helping my dad with his handyman service. I learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, I'm still into fixing things- only now, I'm doing it for a living. I'm always looking for new ways to help people grow and develop. That's why I have created this blog to share all my experience and knowledge so that I can help people who are interested in DIY repair.

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