Keeping a Cool Garage All Summer Long: Tips & Tricks

updated
September 4, 2023
Organized, functional garage with custom cabinets and concrete coated floors.
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Maintaining a cool garage in the summer can be a challenge. The sun beats down on the roof, making it an oven. The temperature inside can easily reach 100 degrees or more, making it uncomfortable to work in or store items.

A comfortable garage cna be a huge asset for a variety of reasons. It can be a place to work on projects, store tools and equipment, escape the sun, or comfortably park your car. A hot garage can make it difficult to do any of these things. It can also be dangerous, as heat can cause heat stroke or other health problems.

Make your garage a more comfortable and enjoyable space to work in and store items all season long with our guide below.

Organized garage space made for projects.

Insulation Upgrades

Proper insulation is essential for temperature control in your garage. It helps to keep the heat in during the winter and the cool air in during the summer, which can save you money on your energy bills. Insulating your garage door, walls, and ceiling are all important steps in creating a comfortable and energy-efficient home.

There are many benefits to insulating your garage. It can help to keep your garage cooler in the summer and warmer in the winter, which can protect your belongings and make it more comfortable to work in. It can also help to reduce noise from the outside, which can be helpful if your garage is located near a busy street. Additionally, insulating your walls and ceiling can help to improve the energy efficiency of your home. 

There are many different types of insulation materials available, so you can choose the right one for your needs. Some common types of insulation include fiberglass, cellulose, and foam insulation. Fiberglass insulation is made from small glass fibers that are blown into walls or attics. Cellulose insulation is made from recycled paper that is blown into walls or attics. Foam insulation is made from a variety of materials, including polyurethane, polystyrene, and fiberglass. It can be sprayed or blown into walls or attics, or it can be installed in batts or rolls. The best way to install insulation will depend on the type of insulation you choose and the location where you are installing it. 

If you are considering insulating your home, it is important to consult with a qualified contractor to choose the right type of insulation and installation method for your needs.

Insulation example for cooling garage.

Ventilation Strategies

Natural ventilation is the process of exchanging air in a building using the wind and the difference in temperature between the inside and outside of the building. Natural ventilation can be achieved through a variety of methods, including:

  • Roof vents: Roof vents allow fresh air to enter the building through the roof, while stale air is exhausted through other openings, such as windows or doors.
  • Windows: Windows can be opened to allow fresh air to enter the building, while stale air is exhausted through other openings, such as doors or ceiling fans.
  • Exhaust fans: Exhaust fans can be installed in areas where moisture and fumes are generated. Exhaust fans help to remove these pollutants from the building, improving indoor air quality.

Mechanical ventilation is the process of exchanging air in a building using fans. Mechanical ventilation can be used to provide fresh air to the building, remove stale air, and control the temperature and humidity of the air. Mechanical ventilation systems can be either central or local. Central systems provide ventilation for the entire building, while local systems provide ventilation for a specific area of the building.

There are several advantages to using mechanical ventilation systems, including:

  • They can provide a constant supply of fresh air to the building, even when the weather is not conducive to natural ventilation.
  • They can remove stale air and pollutants from the building, improving indoor air quality.
  • They can control the temperature and humidity of the air, providing a comfortable environment for occupants.

The best locations for ventilation openings depend on a number of factors, including the size and shape of the building, the climate, and the desired level of ventilation. In general, ventilation openings should be located on opposite sides of the building to create a cross-draft. This will help to ensure that fresh air enters the building and stale air is exhausted.

Sampel vent.

Reflective Roofing and Coatings

Reflective roofing materials are used to reduce heat absorption by reflecting sunlight away from the roof. This can help to keep your garage cooler and reduce energy costs. Reflective coatings are applied to the roof in a similar way to paint. They are available in a variety of colors and can be applied to any type of roof. Cool roof coatings can help to keep garages cooler by reflecting sunlight and reducing heat absorption. This can help to prevent the growth of mold and mildew, and extend the life of the roof.

Here are some of the benefits of using reflective roofing materials:

  • Reduces heat absorption and cooling costs
  • Helps to keep buildings cooler
  • Can be applied to any type of roof
  • Available in a variety of colors
  • Can help to prevent the growth of mold and mildew
  • Extends the life of the roof

Here are some of the benefits of using cool roof coatings:

  • Helps to keep garages cooler
  • Prevents the growth of mold and mildew
  • Extends the life of the roof
  • Easy to apply
  • Affordable
  • Long-lasting
Example of reflective roofing.

Strategic Landscaping

Outdoor landscaping can play a significant role in garage temperature control. By planting shade-providing trees and shrubs around the garage, you can reduce solar heat gain and create a cooler microclimate. This can help to keep your garage cooler in the summer and warmer in the winter, making it more comfortable to use and reducing your energy costs.

When choosing trees and shrubs for your garage landscaping, it is important to select those that will provide adequate shade without blocking too much sunlight. You should also consider the size of the trees and shrubs as they mature, to ensure that they will not grow too large and encroach on your garage or other property.

Garage with strategic landscaping.

Energy-Efficient Lighting

The type of lighting you choose for your garage can have a big impact on the temperature inside. Incandescent and halogen lights produce a lot of heat, which can make your garage feel stuffy and uncomfortable. LED lights, on the other hand, produce very little heat. This makes them a much better choice for garages, as they will help to keep the temperature down.

In addition to choosing energy-efficient LED lights, there are a few other things you can do to prevent unnecessary heat accumulation in your garage. First, make sure that the garage door is properly insulated. This will help to keep the heat from escaping in the winter and entering in the summer. Second, consider installing a ceiling fan in your garage. This will help to circulate the air and keep the temperature more evenly distributed. Finally, avoid using heat-generating appliances in your garage, such as power tools or a car engine. By following these tips, you can keep your garage cool and comfortable all year round.

Switching to energy efficient lighting in a garage.

Cooling Appliances

Portable air conditioners and evaporative coolers are two types of cooling appliances that can be used to cool garages. Portable air conditioners work by circulating cool air throughout the garage, while evaporative coolers work by cooling the air through evaporation.

Portable air conditioners can be strategically positioned in the garage by placing them in a central location. This will help to ensure that the cool air is circulated throughout the entire space. Evaporative coolers, on the other hand, should be placed near an open window or door. This will allow the hot air to escape and the cool air to enter.

When selecting the right cooling equipment for your garage, you should consider the size and layout of the space. If you have a small garage, a portable air conditioner may be a good option. However, if you have a large garage, an evaporative cooler may be a better choice. You should also consider the amount of insulation in your garage. If your garage is not well-insulated, you will need a more powerful cooling unit.

Air conditioner installation.

Garage Door Insulation

Garage doors are often one of the largest openings in a home, and they can let in a lot of heat during the summer. Insulating your garage door can help to keep your home cooler and reduce your energy bills.

There are a few different ways to insulate your garage door. One way is to add insulation panels or kits to the door. These panels are made of a material that is designed to keep heat in or out, and they can be installed easily over the existing door. Another way to insulate your garage door is to add weatherstripping around the edges of the door. Weatherstripping helps to seal any gaps between the door and the frame, which can help to keep heat from escaping.

Insulating your garage door can make a big difference in the comfort of your home. By keeping the heat out in the summer, you can save money on your energy bills and stay cooler.

Garage door with insulation.

Reflective Window Films

Reflective window films are a great way to reduce solar heat gain and UV radiation in your garage. They can also help to improve your home's energy efficiency and security.

Here are some of the benefits of applying reflective window films to garage windows:

  • Reduce solar heat gain: Reflective window films can block up to 99% of the sun's heat, which can help to keep your garage cooler in the summer and warmer in the winter. This can save you money on your energy bills.
  • Reduce UV radiation: Reflective window films can also block up to 99% of the sun's UV radiation, which can protect your belongings from fading and cracking. It can also protect your skin from sunburn.
  • Improve energy efficiency: Reflective window films can help to improve your home's energy efficiency by reducing the amount of heat that is lost through your windows. This can save you money on your energy bills.
Sample reflective window films

DIY Heat-Reducing Hacks

There are a variety of DIY solutions for reducing garage heat. Aside from the tips below, there are many other options available, so be sure to do some research to find the best solution for your needs. These hacks are effective and simple to do. They can help to keep your garage cooler and more comfortable, especially during the summer months. 

  • Use reflective foil insulation. This is a great way to reflect heat back outside and keep your garage cooler. You can attach it to the walls or ceiling of your garage.
  • Blackout curtains. These can help to block out the sun and keep your garage cooler. You can hang them on the windows of your garage.
  • Insulated garage door blankets. These are a great way to insulate your garage door and keep the heat out. You can purchase them at most hardware stores.
Garage with custom seating and storage.

Stay Cool All Year Long 

Creating a more comfortable and usable garage space is great for your lifestyle and your home value. It can provide a safe and secure place for your family to gather and spend time together or  work on projects and hobbies. We can work to make your garage usable year-round while increasing the value and overall usable square footage of your home.

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